HomeMy WebLinkAboutBLD2015-00009 Manufactured Home #207 - BLD Application - 1/5/2016 MASON COUNTY Permit No: T)d 26146-
DEPARTMENT OF MhMUNITY DEVELOPMENT
BUILDING a PLANNING-FIRE MARSHAL
(360) 427-9670 Shelton ext. 352
http://www.co.mason.wa.us/community dev/ (360) 275-4467 Belfair ext. 352
426 W Cedar Street, Shelton WA 98584 (360) 482-5269 Elma ext. 352
%ILDING PERMIT APPLICATION S
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PROPERTY OWNER ENri ORAIATION: CONTRACTOR INFORMATION-
NAME:- F, NAME: !62 E 6_-
MAILING DRESS:- MAILING'A ADDRESS:' A6 A /t)C__
CITY: STATE,- ZlP:c7,.3- &W91- CITY: STATE-: ZIP:
PHONE: 360_�� CELL: PHONE: CELL:
EMAIL: llir few e C7 &&III&,-C(2rD'ASIU,
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CONTACT : OWNER CONTRACTOR[I BELOW n
NAME: MAILING ADDRESS:
CITY: STATE-: ZIP: PHONE: CELL:
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PARCEL INFORMATION:
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PARCEL NUI�MER(12 DIGIT NUMBET" .-M oci _3 c /11W FIRE DISTRIC
LEGAL DESCRIPTION(ABBREVIATED): X 5:; _�ff-3-65"eX- &4-11 S coilcir-D
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S1SITEADDRESS 005 W, CITY
DIRECTIONS TO SITE ADDRESS _153' Ll"V's 04' 7';5 /We" AU JkNk7j,�_= z4t;L0 I
IS PROPERTY WITIBIN 200 IT:
SALTWATER[] /Mk[] RIVERIC ND E WETLAND�F SEAWRUNOFF ] STREAM E
DOES PROPER fIANOPE(S) NorTFIE PROJECT-GlE &RTF 14% YESE NO ,
TITE OF JOB NE El E] ALTERATION REPA OTHER !
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USE OF STRUC (RESID ETC.) 11:511 e-4j
IS USE: Pj 0 NUMBER OF BEDROO NUMBER OFB OOMS ;P_
DESCRIBE WORK c
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SQUARE FOOTAGE:
1ST FLOOR__ 4 OOR sq.ft. AS 31� N_r sq.ft.
sq.ft. 2ND FLOOR 1 3 r T J��
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DECK sq.ft. COVERED DECK q. S GE sq.ft. 0 —sq.ft.
GARAGE sq.ft. ATTACHED E] D;'A ORT s .. AT D E] DETACHED❑
MANUFACTURED HOAXINF OR .*4 COPIES TIECE, F OR PLAN RE,OUIRE D
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MAKE A;P-t1d'Y. x'44%%MO E LENGTHWIDTI-1- BEDRO S An-IS S D 2.V-714
OWNER acknowledges that sub 'ssion of in curate information m result in a stop ark order or permit revocation.
Acknowledgement of such is by si ture b w. I declare that I am e owner or owne s legal representati)�. I further
declare that I am entitled to receive t it and to do the work proposed. I have btained permissioryrrom all the
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necessary parties, including any easement holder or parties of i rest regarding this oject. The owner 9f legal
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the above described property and structure(s)for i w an i s ection. This permit/a licatior 0 null &void if
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work or authorized construction is not commenced within days or if construction w k is suspen d for a period of
180 days. P I
PROOF OF CONTINUATION OF WORK IS BY MEANS OF INSPECTION. INACTIVI F PERMIT
APPLICATION OF 180 DAYS WILL CAUSE THE APPLICATION TO BE EXPIRED. (MA COUNTY CODE 14.08.42)
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Signature of OWNER Date
DEPARTNT1,WALMA7RM7 "PROW' DATE DENIED DATE, TAGS/NOTES/CONDITIONS
BUILDING DEPARTMENT NT
PLANNING DEPARTMENT
FIRE MARSHAL NZ
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BUILDING PERMIT FEE FIRE ACCESS AND GRADE
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AECI-JANICAL&BASE FEE TOTAL FE E,8
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PERMIT NUMBER:
REVIEWED FOR
CODE COMPLIANCE 2 0 �Od
MASON COUNTY
BUtL ING DEPARTMENT
Lv V Date Z" 'Z� NAME ON PERMIT:
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ADDRESS:
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PARCEL NUMBER:
WZool - S3 - 000go
See Mason County
Manufactured Home Checklist (attached)
Review pages 9-12 for general
requirements and a manufactured home inspection checklist.
All decks, stairs and guards must meet minimum code requirements.
Useful details and information are attached to the checklist.
See also item numbers 1 , 30, 31,32,33,34, 35, 36, 44, 49, 53, 55, 56, 69, 96, and 110.
For information about skirting vents and crawl space access
requirements see item #51 and #60.
Site address must be posted see item #78.
1
MASON COUNTY
y DEPARTMENT OF COMMUNITY DEVELOPMENT
Mason County Bldg. III, 426 West Cedar Street
PO Box 279, Shelton, WA 98584
www.co.masonma.us (360)427-9670 Belfair(360)275-4467 Elma(360)482-5269
Inspection Request Line (360)427-7262 (Inspections conducted between 8:00am and 4:00pm)
MANUFACTURED HOME PLAN REVIEW CHECKLIST
Owner:TeAF-✓ -?eVkVL 10(,kl- Contractor:
Permit Number: 701 b ' Q00001 Site Address: SC) E 1;1 eytYkS TZck /j"Lq
Plans Examiner: 'U Clk _ �pS 1A Date: Z—Z—1 �0
• 2012 International Residential Code (IRC) WAC 51-51
• 2012 International Building Code (IBC) WAC 51-50
• 2012 International Mechanical Code (IMC) WAC 51-52
• 2012 Uniform Plumbing Code (UPC) WAC 51-56
• 2012 International Energy Conservation Code (IECC), WAC 51-11R & 51-11C
• 2012 International Fire Code WAC 51-54A
• Seismic Zone D2, Wind load 85 mph, Exposure _ (as determined in R301.2.1.4)
• Roof snow load SS lbs. Per square foot. Floor live load varies, see R301.5.
The numbered items on the following pages are associated with the above referenced codes, as adopted by
Mason County. The same number identifies items in the checklist and noted on the approved plans. This
checklist shall remain attached to the approved plans and be available during inspections by Mason County
Building Inspectors. This checklist is submitted as information only, and shall not be construed as an all-
inclusive list of code requirements. Errors or omissions in the plans and specifications shall not prevent the
Building Official, or his authorized agents, from requiring revisions or corrections to these plans, and stopping
the progress of the project under permit.
Office hours are from 8:00 a.m. until 4:30 p.m. Monday through Friday.
Inspections can be scheduled by calling (360)427-7262. From Belfair call (360) 275-4467 ext. 262. Requests
can also be faxed to (360) 427-7798 or via the Mason County website at www.co.mason.wa.us. Go to
Community Development, then click the link in the left banner"Request an Inspection, Building Division":
http://www.co.mason.wa.uslcommunii)_devlbld inspection.php
To schedule an inspection the following information will be needed: Permit number, site address, name of
owner,type inspection requested,preferred day of inspection, and the telephone number Mason County staff
should use when they call to confirm the inspection. Staff will attempt to accommodate dates that are requested.
Word:2912plan review checklist coversheet manufactured home
Floor Plan
R308.4.3.Glazing in an individual fixed or operable
1. CONSTRUCTION DOCUMENTS&COMPLIANCE panel that meets all of the following conditions:
TO APPROVED PLANS:IRC Section R106. 1.The exposed area of an individual pane is
Approved site plans shall be attached to the approved larger than 9 square feet;and
building plans during inspection. Property lines shall be 2.The bottom edge of the glazing is less
marked. Setback distances will be measured from the than 18 inches above the floor;and
furthest projection of the permitted structure. 3.The top edge of the glazing is more than
Manufacturer's installation instructions shall be available 36 inches above the floor;and
on the job site at the time of inspection. All work shall be 4.One or more walking surfaces are within
installed in accordance with the approved construction 36 inches,measured horizontally and in a
documents. Any changes made during construction that straight line,of the glazing.
are not in compliance with the approved construction Exceptions:
documents shall be resubmitted for approval as an 1.Decorative glazing.
amended set of construction documents. To request 2.When a horizontal rail is installed on the
approval of revisions complete a"Request To Revise An accessible side(s)of the glazing 34 to 38
Approved Plan"form and submit to the Mason County inches above the walking
Permit Center along with approved plans and documents surface.The rail shall be capable of
detailing the proposed changes. R106 withstanding a horizontal load of 50 pounds
per linear foot without contacting the glass
4. SAFETY GLAZING :R308.1 Each pane of glass and be a minimum of 11/2 inches(38 mm)in
installed in a hazardous location shall be provided with a cross sectional height.
manufacturer's designation specifying who applied the 3.Outboard panes in insulating glass units
designation,designating the type of glass and the safety and other multiple glazed panels when the
glazing standard. The designation shall be visible in the bottom edge of the glass is 25 feet
final installation and shall be acid etched,sand-blasted, or more above grade,a roof,walking
ceramic fired,laser etched,embossed or on that cannot be surfaces or other horizontal[within 45
removed without being destroyed. degrees of horizontal]surface adjacent to the
glass exterior.
R308.4 Hazardous locations.The following shall be
considered specific hazardous locations for the purposes R308.4.4.All glazing in guards and railings
of glazing: regardless of area or height above a walking surface,
1.Glazing in all fixed and operable panels of including structural baluster panels and nonstructural
swinging,sliding and bifold doors. infill panels. Glass used as a handrail assembly or a
Exceptions: guard section shall be firmly supported on all edges.
1.Glazed openings of a size through which a As an option glazing not supported on alledges shall
3-inch diameter(76 mm)sphere is unable to be approved subject to detailed construction
pass. documents,detailed shop drawings,and analysis or
2.Decorative glazing. test data assuring safe performance for the specific
installatation prepared by a registered design
R308.4.2.Glazing in an individual fixed or operable professional shall be required.(refIBC2403)
panel adjacent to a door where the nearest vertical
edge is within a 24-inch(610 mm)arc of the door in a R308.4.5.Glazing and wet surfaces including
closed position and whose bottom edge is less than 60 enclosures or walls facing hot tubs,whirlpools,
inches saunas,steam rooms,bathtubs and showers where the
above the floor or walking surface. bottom-exposed edge of the glazing is less than 60
Exceptions: inches measured vertically above any standing or
1.Decorative glazing. walking surface and less than 60-inches measured
2.When there is an intervening wall or other horizontally in a straight line from the water's edge of
permanent barrier between the door and the a bathtub,hot spa,or whirlpool,or swimming pool.
glazing.
3.Glazing in walls on the latch side of and Glazing in walls and fences adjacent to indoor and
perpendicular to the plane of the door in a outdoor swimming pools,hot tubs and spas where the
closed position. bottom edge of the glazing is less than 60 inches
4.Glazing where access through the door above a walking surface and within 60 inches,
is to a closet or storage area 3-ft or less in measured horizontally and in a straight line,of the
depth. water's edge.This shall apply to single glazing and
5.Glazing that is adjacent to the fixed panel all panes in multiple glazing.
of patio doors.
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R308.4.6.Glazing adjacent to stairways,landings remain attached to the appliance. Fuel-fired appliances
and ramps less than 36 inches above the plane of shall not be located in sleeping rooms,bathrooms,toilet
the walking surface. rooms,or storage closets.Exception: 1)direct vent
Exceptions: appliances that obtain all combustion air from the
1. When a rail is installed on the accessible outdoors. Where combustion air is obtained from a
side(s)of the glazing 34 to 38 inches dedicated enclosure in which combustion air is taken
above the walking surface.The rail shall directly from the outdoor in accordance to G2407,access
be capable of withstanding a horizontal to such enclosure shall be through a WSEC approved
load of 50 pounds per linear foot solid door, weather-stripped and equipped with an
without contacting the glass and be a approved self-closing device. Appliances shall be
minimum of 11/2 inches in cross accessible for inspection,service,repair,and replacement
sectional height. without removing permanent construction,other
2. Glazing 36-inches or more measured appliances,or other piping or ducts not connected to the
horizontally from the walking surface. appliance. Appliances shall not be installed in a location
where subject to mechanical damage unless protected by
R308.4.7.Glazing adjacent to the stair landing at approved barriers. Appliances designed to be in fixed
the bottom of a stairway where the glazing is less positions shall be anchored or strapped to resist horizontal
than 36-inches above the landing and within 60 displacement caused by earthquake motion in an approved
inches horizontally of the bottom tread. manner. Strapping shall be at points within the upper 1/3
Exceptions: and lower 1/3 of the appliances vertical dimensions. At
1.The side of the stairway has a guardrail the lower point the strapping shall maintain a minimum
or handrail,including balusters or in-fill distance of 4-inches above the controls.. Fuel-fired
panels,complying with Sections R311.7.6 furnaces and boilers installed in closets and alcoves shall
and R312 and the plane of the glass is be listed for such installation. Equipment installed in
more than 18 inches from the guard. outdoor locations shall be either listed for outdoor
installation or provided with protection from outdoor
7. CLOTHES DRYERS: IRC Section M1502,G2439,& environment factors that influence operability,durability
IMC Section 504.Exhaust ducts,not less than 4-inch and safety of the equipment. Appliances installed in a
diameter,shall be constructed of.016-inch-thick(28- compartment,alcove,basement or similar space shall be
gage)rigid metal ducts,having smooth interior surfaces accessed by an opening or door and an unobstructed
with joints running in the direction of air flow.Exhaust passageway measuring not less than 24-inches wide and
ducts shall not be connected with sheet-metal screws or large enough to allow removal of the largest appliance in
fastening means that extends into the duct and supported the space,provided there is a level service space of not
at intervals not less than 12-ft.Transition ducts shall not less than 30-inches deep and the height of the appliance,
be concealed within construction. Flexible transition but not less than 30-inches,at the front or service side of
ducts used to connect the dryer to the to the exhaust the appliance with the door open. Attics containing
system shall be limited to single lengths,not to exceed 8- appliances requiring access shall have an opening and a
feet and shall be listed and labeled in accordance to UL clear unobstructed passageway large enough to allow
2158A.Exhaust ducts shall terminate outside the building removal of the largest appliance,but not less than 30-
not less than Meet in any direction from openings into inches high and 22-inches wide and not more than 20-feet
buildings. Screens shall not be installed at the duct long when measure from the opening to the appliance.
termination. Ducts shall be equipped with a backdraft The passageway shall have continuous solid flooring not
damper.The maximum length of a clothes dryer exhaust less than 24-inches wide. A level service space at least
duct shall be in accordance with manufacturer 30-inches x 30-inches along all sides. Appliances located
specifications or shall not exceed 35 feet from the dryer in under floor spaces shall have an unobstructed
location to the wall or roof termination. When fittings are passageway large enough to remove the largest appliance,
used the maximum length of the duct shall be reduced in but not less than 30-inches high and 22-inches wide,nor
accordance to Table M1502.4.4.1. The maximum length more than 20-feet long,measured from the opening to the
of the exhaust duct does not include the transition duct. appliance.A level service space at least 30-inches x 30-
inches along all sides. If the service space exceeds 12-
16. APPLIANCE INSTALLATION:IRC Chapter M12, inches below the adjoining grade,the walls on the
Chapter M 13, M2005,G2406. Appliances shall be passageway shall be lined with concrete or masonry
listed and labeled for the application in which they are extending 4-inches above the adjoining grade. Appliance
installed and used. A permanent factory-applied supported from the ground shall be level and firmly
nameplate shall be affixed to appliances with information supported on a concrete slab. Appliances suspended from
listed in accordance to M1303. The standards for the floor shall have a clearance of not less than 3-inches
liquefied petroleum gas installations shall be in from the ground in stalled in accordance to manufacturer
accordance with NFPA 58(Liquefied Petroleum Gas specifications. A luminaire,controlled by a switch at the
Code)and the International Fuel Gas Code. The passageway opening shall be installed near under floor
manufacturer's operating and installation instructions shall
2
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and attic appliances and a receptacle outlet shall be heating systems shall be equipped with automatic
installed at or near the appliance location. temperature controls and shall be set to 120T. WSEC
Section 504.2.1 requires that all electric water heaters
17. APPLIANCES LOCATED IN GARAGE: IRC Section shall be placed on an R-10 pad when located in an
M1307.Appliances located in a garage,carport or other unheated space or on a concrete floor.
location where subject to mechanical damage shall be
protected with approved barriers. Vehicle barrier systems 19. LPG(PROPANE)APPLIANCES&TANKS:IFGC
for passenger cars shall be designed to resist a single load 303,NFPA 58,IRC M1301,IRC Chapter G24,&IMC
of 6,000 lbs.Applied horizontally in any direction to the Section 303.7 and IFGC303.7.Appliances shall be
barrier system and shall have anchorage or attachment installed in accordance with the manufacturer listing.
capable of transmitting this load to the structure. For Fuel-gas appliances shall not be located in sleeping
design of the system,the load shall be assumed to act at a rooms,bathrooms,toilet rooms,storage closets or in a
minimum height of 1'6"above the floor or ramp surface space that opens only into such rooms unless allowed in
on an area not to exceed 1 sq.ft. accordance with G2406.2.Appliances installed in pits or
excavations shall not come in direct contact with the
Equipment and appliances having an ignition source shall surrounding soil. The sides of the pit shall be held back a
be elevated such that the source of ignition is not less than minimum of 12"from the appliance. Where the depth
least 18"above the floor surface on which the equipment exceeds 12"below the adjoining grade,the walls of the pit
or appliance stands unless the appliance is listed as or excavation shall be lined with concrete or masonry.
flammable vapor ignition resistant. Rooms or spaces that Containers used for storage of LPG shall be installed in
are not part of the living space of a dwelling unit and that accordance with the Fire Code,see details attached.
communicate with the private garage through openings
shall be considered to be part of the garage and appliances 20. MANUFACTURER'S SPECS: IRC Section M1302,
located in the space shall be elevated as specified above. M1303.1,M1307,and IMC 304.1. All appliances shall
be listed and bear a permanent factory applied
18. WATER HEATERS: UPC Chapter 5&608,IRC nameplate(s)affixed to the appliances with manufacturer's
Section M1307.2,M2005&IECC/WSEC R403.4.When name or trademark,model number,serial number,and
water heaters or hot water storage tanks are installed in seal or mark of testing agency. The installer shall leave
locations where leakage of the tanks or connections will the manufacturer's installation and operating instructions
cause damage,the tank or water heater shall be installed attached to the appliance.
in a watertight pan of corrosion resistant material. The
pan shall be at least 1.5"deep and with a W'diameter 21. VACUUM BREAKERS:UPC Sections 603.4.7.
drain to the exterior of the building not less than 6"and Potable water outlets with hose attachments other than
not more than 24"above the adjacent ground surface. water heater drains,and clothes washer connections shall
Temperature and pressure relief valves shall be drained to be protected by a listed non-removable backflow
the outside of the building. Drain may not be trapped and preventor,a non-removable frost-free hose bib type
must terminate not more than 2'nor less than 6"above the vacuum breaker,or an atmospheric vacuum breaker
ground or the flood level of the area receiving the installed at least 6"above the highest point of usage
discharge and pointing downward. Water heaters shall be located on the discharge side of the last valve.
anchored or strapped to resist horizontal displacement due
to earthquake motion. Twenty-two(22)gage x 31" 22. TRAP PRIMERS,DISHWASHER AIRGAP:UPC
strapping shall be used and be placed at points within the Section 1007&807.4. Floor drains or similar traps
upper one-third(1/3)and lower one-third(1/3 )of it's connected to the drainage system and subject to infrequent
vertical dimensions. At the lower point,a minimum use shall be protected with a trap seal primer and shall be
distance of 4"shall be maintained above the controls. accessible for maintenance.All dishwashers connected to
Lag screws not less than'/."in diameter must be used to a drainage system or food waste disposer shall be
anchor the restraints to the wall and each lag screw must equipped with an approved air gap fitting on the discharge
have at least 1-%"thread penetration into a stud wall. A side of the dishwashing machine. Listed air gaps shall be
flat washer must be installed between each lag screw and installed with the flood-level marking at or above the
the strap for reinforcement. When the water supply flood-level of the sink or drain board,whichever is higher.
system is provided with a pressure regulating device or
check valve a properly sized expansion tank shall be 23. GARAGE/DWELLING DOOR/OPENINGS:IRC
installed per manufacturer specifications. Check with Section R302.5.1 Openings between the garage and
your water purveyor. Water heaters used to supply both residence shall be equipped with self-closing,solid wood
potable hot water and hot water for space heating shall be doors not less than 1-3/8 inches(35mm)in thickness,
installed in accordance with manufacturer's installation solid or honeycomb core steel doors not less than 1-3/8"
instructions. In addition combination space and service thick,or 20-minute fire-rated doors.
water heaters shall have an Energy Factor(EF)or
Combined Annual Efficiency(CAE)not less than that
specified in WSEC Section 504.2.1. Service water
3
24. GARAGE/DWELLING SEPARATION: IRC Section than 7-feet in any dimension. Exception:Kitchens. Every
R302.5 R302.6,.The garage shall be separated from the dwelling unit shall be provided with a water closet,
residence and its attic area by not less than'/z"gypsum lavatory,bathtub or shower,kitchen area with a separate
board applied to the garage side. Garages beneath sink,be connected to an approved sewage disposal
habitable rooms shall be separated from all habitable system,and shall be connected to an approved water
rooms above by not less than 518"Type X gypsum board supply with hot and cold water.
or equivalent. Where the separation is a floor-ceiling
assembly,the structure supporting the separation shall 28. MINIMUM CEILING HEIGHTS: IRC R305.
also be protected by not less than''/z"gypsum board or Habitable rooms,hallways,corridors,bathrooms,toilet
equivalent. Ducts in the garage and ducts penetrating the rooms,laundry rooms and basements shall have a ceiling
walls or ceilings separating the dwelling from the garage height of not less than 7-feet,measured from the finished
shall be constructed of a minimum 26-gage sheet metal or floor to the lowest projection from the ceiling.
other approved material and shall have no openings into Exceptions: 1)For rooms with sloped ceilings, at least
the garage. Penetrations shall be protected by filling the 50%of the required floor area of the room must have a
opening around the penetrating item with approved ceiling height of at least 7-feet and no portion of the
material to resist the free passage of flame and products of required floor area may have a ceiling height of less than
combustion. Garages located less than 3-feet from a 5-feet. 2)Bathrooms shall have a min. ceiling height of
dwelling unit on the same lot shall be protected with not 6'8"over the fixture and at the front clearance area for
less than 1/2-inch gypsum board applied to the interior side fixtures as shown in figures R307.1. The ceiling height
of the exterior walls that are within this area. Openings above fixtures shall be such that the fixture is capable of
shall meet the same protection as required in R302.5. being used for it's intended purpose. A shower or tub
equipped with a showerhead shall have a minimum
25. SEPARATION BETWEEN DWELLING UNITS:IRC ceiling height of 6'8"above the area 30-inches x 30-
Section R302.3. Walls and floors assemblies separating inches at the showerhead Portions of basements that do
dwelling units in 2-family dwellings shall not be less than not contain habitable space, hallways, bathrooms, toilet
1-hr fire-resistive rating. rooms and laundry rooms may project to within 6'8"of
the finished floor. Exception:beams,girders, ducts or
26. FIRE-RESISTANCE OF EXTERIOR WALLS: other obstructions may project within 6'4"of the finished
Washington State Amendment to R302.1,Tables R302.1 floor
and R302.1(2).Exterior walls with a fire separation
distance less than 5-feet shall have not less than a 1-hour 30. EXTERIOR DOORS/EXITS: IRC R311. At least one
fire-resistive rating with exposure from both sides. egress door shall be provided to each dwelling. The
Openings are not permitted at less than 3-ft and limited egress door shall be side-hinged and with a min.clear
when located between 3-ft to 5-ft.Projections shall not width of 32-inches in width and not less than 78-inches in
extend to a point closer than 2-feet from the line used to height,measured from the top of the threshold to the
determine the fire separation distance. When a structure bottom of the stop. The exit door shall provide direct
is equipped with an automatic fire-sprinkler system access from the habitable portions of the dwelling to the
installed in accordance with P2904 fire-resistive exterior without requiring travel through a garage. Egress
ratings may be reduced in accordance with Table from habitable levels including habitable attics and
R302.1(2). Exception:Detached garages accessory to a basements not provided with an egress door shall be by a
dwelling located within 2-ft of a lot line may have roof ramp or a stairway in accordance to applicable IRC
eave projections not exceeding 4". Projections extending sections 311.8 or 31 l.7. Egress doors shall be readily
into the fire separation distance shall have not less than openable from the side from which egress is to be made
one-hour fire-resistive construction on the underside. without the use of a key or special knowledge or effort.
These provisions shall not apply to walls perpendicular to
the line used to determine the fire separation distance. 31. LANDINGS AT DOORS AND STAIRWAYS&
Exception: Tool and storage shed playhouses and similar CONSTRUCTION:IRC R311.3,R311.5. The floor or
structures exempted from permits by R105.2 or Mason landing at the required egress door shall not be more
County ordinance are not required to provide wall than 1-1/2"lower than the top of the threshold.
protection based on location on the lot. Projections Exception:The landing on the exterior side shall not be
beyond the wall line shall not extend over the lot line. more than 7-3/4"below the top of the thresholdprovided
Exception:Foundation vents installed in compliance with the door does not swing over the landing or floor.
this code are permitted. Storm and screen doors are allowed to swing over all
exterior stairs and landings.When exterior landings or
27. FLOOR AREA:IRC Section R304,R306. Every floors serving the required egress door are not at grade,
dwelling unit shall have at least one habitable room with they shall be provided with access to grade by means of a
not less than 120 square feet of gross floor area. Other ramp or stairway. There shall be a floor or landing on
habitable rooms except kitchens shall have an area of not each side of all other exterior doors.Floor elevations for
less than 70 square feet. Habitable rooms shall not be less the doors shall be provided with landings no more than 7-
3/4"below the top of the threshold. Exception: A
4
landing is not required where a stairway of two or fewer Handrails for stairways shall be continuous for the full
risers is located on the exterior side of the door,provided length of the flight,from a point directly above the top
the door does not swing over the stairway. Storm and riser to a point directly above the lowest riser. Handrail
screen doors are permitted to swing over all exterior ends shall be returned or terminate in newel posts or
stairs and landings The width of each landing shall not safety terminals. Handrails adjacent to the wall shall have
be less than the door served and shall have a min. a space not less than 1 '/2"between the wall and the
dimension of 36-inches measured in the direction of handrail. TYPE I:Circular handrails shall have an outside
travel.The floor or landing at the exterior door shall not diameter of at least 1 '/4"and not greater than 2". If the
be more than 1 '/2"lower than the top of the threshold. handrail is not circular,it shall have a perimeter
The landing shall be permitted to have a slope not to dimension of at least 4"and not greater than 6 ''/."with a
exceed 1/4 unit vertical in 12 units horizontal(1:48). A maximum cross-section dimension of2'/4". TYPE 11:
flight of stair shall not have a vertical rise greater than 12- Handrails with a perimeter greater than 6''/."shall have a
feet between floor levels or landings. Landings shall be graspable finger recess area on both sides of the profile.
the same width of the stairway served and at least 36- The finger recess shall begin a distance of V measured
inches measured in the direction of travel. vertically from the tallest portion of the profile and
achieve a depth of at least 5/16"within 7/8"below the
Exterior landings,decks,balconies,stairs,and similar widest portion of the profile. This required depth shall
facilities shall be positively anchored to the primary continue for at least 3/8"to a level that is not less than 1
structure to resist both vertical and lateral forces or shall V below the tallest portion of the profile. The minimum
be designed to be self-supporting. Attachments shall not width of the handrail above the recess shall be 1 '/a"to a
be accomplished by use of toenails or nails subject to maximum of 2 3/4". Edges shall have a minimum radius of
withdrawal. See also item#69 for deck attachment info. .01". See item#34,stairway width,for additional
information. Also refer to deck detail information
32. GUARDS:IRC Section R312.Table R301.5 Guards attached to this checklist.
shall be provided for porches,balconies,ramps,or raised
floor surfaces located more than 30"above grade or a 34. STAIR WIDTH:IRC Section R311.7.1 Stairways shall
floor below.Grade shall be measured 36-inches not be less than 36"in clear width at all points above the
horizontally from the edge of the floor surface. Guards handrail height and below the required headroom height.
shall be not less than 36"in height,measured from the Handrails shall not project more than 4'/Z"on either side
adjacent walking surface,adjacent fixed seating or the of the stairway and the minimum clear width of the
line connecting the leading edges of a tread. Exception: stairway at and below the handrail height,including treads
1) Open sides of stairs with a total rise of more than 30" and landings,shall not be less than 31 ''/z"where the
above the floor or grade below shall have guards not less handrail is installed on one side and 27"where handrails
than 34"in ht. measured vertically from a line connecting are installed on both sides. Width of spiral stairways shall
the leading edges of the treads.2) Where the top of the be in accordance with Section R311.7.9.1,see item#39.
guard also serves as a handrail on the open sides of
stairs, the top of the guard shall not be less than 34"and 35. STAIR TREADS&RISERS and RAMP SLOPE:IRC
not more than 38"above the leading edge of treads. Section R311.7.5&R311.8.1 The maximum riser height
Required guards shall be designed such that a sphere 4"in shall be 7 V.The greatest riser height within any flight of
diameter cannot pass through. Exceptions: 1) The stairs shall not exceed the smallest by more than 3/8".
triangular openings at the open side of a stair, formed by The minimum tread depth shall be 10". The tread depth
the riser, tread and bottom rail of a guard are permitted within any flight of stairs shall not exceed the smallest by
to be of such size that sphere 6-inches cannot pass more than 3/8". A nosing not less than 3/a"but not more
through. 2)Guards on the open sides of stairs shall not than 1 '/4"shall be provided on stairways with solid risers.
have openings which allow passage of a sphere 4-318"in Open risers are permitted,provided that the opening does
diameter. Handrail assemblies and guards shall be able to not permit the passage of a 4"diameter sphere.Exception:
resist a single concentrated load of 200 lbs.,applied in any Nosing is not required where the tread depth is at least
direction at any point along the top,and have attachment 11". The opening between adjacent treads is not limited
devices and supporting structure to transfer this loading to on stairs with a total rise of 30"or less. Ramps shall
appropriate structural elements of the building. have a maximum slope of 1 unit vertical in 12 units
Intermediate rails(all those except the handrail),balusters horizontal.
and panel fillers shall be designed to withstand a
horizontally applied normal load of 50 lbs.on an area 36. STAIR HEADROOM CLEARANCE: IRC R311.7.2
equal to 1 sq.ft.,including openings and space between All parts of the stairway shall not be less than 6'8"
rails. measured vertically from the sloped plane adjoining the
tread nosing or from the floor surface of the landing or
33. HANDRAILS: IRC Section R311.7.8,R311.8.3 All platform. See exception for spiral stairways.
stairways with 4 or more risers shall have at least one
handrail. Such handrails shall be placed not less than 34"
and not more than 38"above the nosing of the treads.
5
37. UNDER STAIR PROTECTION:IRC Section R302.7 46. FOUNDATION ANCHORAGE: IRC Section 403.1.6,
Enclosed accessible space under stairs shall have walls, R602.11. Braced wall panels shall be supported directly
under stair surface and any soffits protected on the on continuous foundations. The wood sole plates at
enclosed side with'/z"gypsum board. exterior walls on monolithic slabs and wood sill plates
shall be anchored to the foundation with'/z"anchor bolts
38. ILLUMINATION: IRC Section R303.7.All interior and spaced a maximum of 6'o.c.and shall extend a minimum
exterior stairways shall be provided with a means to of 7"into concrete or grouted cells of concrete masonry
illuminate the stairs,including landings and treads. units. The maximum anchor bolt spacing shall be 4-ft for
Stairway illumination shall receive primary power buildings over two stories in height.There shall be 2 bolts
from the building wiring.Interior stairways shall be per plate section with one bolt located not more than 12"
provided with an artificial light source located in the or less than 7 bolt diameters(3 ''/z"typical)from each end
immediate vicinity of each landing of the stairway. of the plate section. Where interior braced wall lines are
Exterior stairways shall be provided with a light source required(seismic zones DI &D2)to be supported by
located in the immediate vicinity of the top of the landing continuous foundations in Section 403.1.2,'/2"anchor
of the stairway. Exterior stairways providing access to a bolts shall be spaced not more than 6' o.c.and located
basement from the outside grade level shall be provided within 12"from the ends of each plate section. Anchor
with an artificial light source located in the immediate bolts shall be at least''/2"in diameter and shall extend a
vicinity of the bottom landing of the stairway. Where minimum of 7"into masonry or concrete. Interior bearing
lighting outlets are installed in the interior stairways,there wall sole plates on monolithic slab foundations shall be
shall be a wall switch at each floor level to control the positively anchored with approved fasteners. A nut and
lighting outlet where the stairway has 6 or more risers. washer shall be tightened on each bolt to the mudsill plate
The illumination of exterior stairways shall be controlled using'/4"x 3"x 3"plate washers except where approved
from inside the dwelling unit anchor straps are used. At all braced wall lines sills and
sole plates shall be protected against decay. The hole in
39. SPECIAL STAIRWAYS:IRC Section R311.4, the plate washer is permitted to be diagonally slotted with
R311.7.10,R311.7.5.2.1, . Spiral stairways and bulkhead a width of up to 3/16"larger than the bolt diameter and a
enclosure stairways shall comply with all requirements of slot length not to exceed 1-3/4",provided a standard cut
stairways except: Spiral stairways are permitted,provided washer is placed between the plate washer and the nut..
the minimum width below the handrail shall be 26 inches
with each tread having a 7'h"minimum tread depth at 12" 48. FOUNDATION DRAINAGE: IRC Section R401.3,
from the narrower edge.All treads shall be identical,and R405. Surface drainage shall be diverted to an approved
the rise shall be no more than 9''/2".A minimum point of collection so as to not create a hazard. Lots shall
headroom of 6 feet 6 inches shall be provided. Stairways be graded so as to drain surface water away from
serving bulkhead enclosures see IRC Section R311.7.10.2. foundation walls. The grade away from foundation walls
The walk line across winder treads shall be concentric to shall fall a minimum of 6"within the first 10.'Exception:
the curved direction of travel through the turn and located Where lot lines, walls, slopes or other physical barriers
12"from the side where the winders are narrower. The prohibit 6"of fall within 10'drains or swales shall be
12"dimension shall be measured from the widest point of provided to ensure drainage away from the structure.
the clear stair width at the walking surface of the winder. Impervious surfaces within 10-
fit of the building
If winders are adjacent within the flight,the point of the foundation shall be sloped a min. 2%away from the
widest clear stair width of the adjacent winder shall be building. Drains shall be provided around all concrete or
used. Winder treads shall have a minimum tread depth of masonry foundations that retain earth and enclose
10"between the vertical planes of the foremost projection habitable spaces located below grade. Drainage tiles,
of adjacent treads at the intersections with the walk line. gravel,or crushed stone drains,perforated pipe or other
Winder treads shall have a minimum tread depth of 6"at approved systems or materials shall be installed at or
any point within the clear width of the stair. Note: below the area to be protected and shall discharge by
Washington State Amendment to IRC R311.4:Stairs and gravity or mechanical means into an approved drainage
ladders are permitted within an individual dwelling unit system. Gravel or crushed stone drains shall extend at
used for access to areas of 200 sq.ft. or less, and not least 1-foot beyond the outside edge of the footing and at
containing the primary bathroom or kitchen. least 6 inches above the top of the footing and be covered
with an approved filter membrane material. The top of
44. FOOTING DEPTH: IRC Section R403.1.4.1,403.1.4.2. open joints of drain tiles shall be protected with strips of
all exterior footings shall be placed at least 12"below building paper,and the drainage tiles or perforated pipe
undisturbed ground. Interior footings supporting bearing shall be placed on a minimum 2 inches of washed gravel
or bracing walls and cast monolithically with a slab on or crushed rock at least one sieve larger than the tile joint
grade shall extend to a depth of less than 12"below the opening or perforation and covered with not less than 6
top of slab. A inches of the same material.
6
49. FOOTING/PIERS ON OR ADJACENT TO SLOPES: Corrosion-resistant wire mesh,with the least dimension
IRC Section 403.1.7. The placement of buildings and being 1/8". See exceptions for additional options.
structures on or adjacent to slopes steeper than 1 unit
vertical in 3 units horizontal(33.3-percent slope)shall 52. WOOD IN CONTACT WITH CONCRETE&
conform to Sections R403.1.7.1 through R403.1.7.4. MASONRY:IRC Section R317.1 #2. All wood framing
Buildings below slopes shall be set a sufficient distance members that rest on concrete or masonry exterior
from the slope to provide protection from slope drainage, foundation walls and are less than 8"from the exposed
erosion and shallow failures. Where the existing slope is ground require the use of naturally durable wood or wood
steeper than one unit vertical in one unit horizontal(100% that is preservative treated accordance with AWPA Ul for
slope),the toe of the slope shall be assumed to be at the the species,product,preservative,and end use.
intersection of the horizontal plane drawn from the top of Preservatives shall be listed in Section 4 of AWPA Ul.
the foundation and a plane drawn tangent to the slope at
an angle 45 degrees to the horizontal. Where a retaining 53. COLUMNS AND POSTS: IRC Section R317.1.2,
wall is constructed at the toe of the slope,the height of the R317.1.4&R407.3. Posts,poles and columns supporting
slope shall be measured from the top of the wall to the top permanent structures that are embedded in concrete in
of the slope. Footings on or adjacent to slopes shall be direct contact with the ground,or embedded in concrete
founded in material with an embedment and setback from exposed to the weather shall be approved pressure
the slope surface to provide vertical and lateral support for preservatively treated or wood suitable for ground contact.
the footing without detrimental settlement. Except as
provided for in Section R403.1.7.4 and Figure Wood columns shall be approved wood of natural decay
R403.1.7.1,the following setback is deemed adequate to resistance or approved pressure preservatively treated
meet the criteria. Where the slope is steeper than one unit wood. Exceptions: 1)Posts or columns which are
vertical in one unit horizontal(100%slope),the required exposed to the weather or located in basements or cellars,
setback shall be measured from an imaginary plane 45 supported by concrete piers or metal pedestals projecting
degrees to the horizontal,projected upward from the toe 1"above the floor or finished grade and 6"above exposed
of the slope.Footings adjacent to slopes shall be founded earth,and are separated by an approved impervious
in firm material with an embedment and setback sufficient moisture barrier.2)Posts or columns in enclosed crawl
to provide vertical and lateral support for the footing spaces or unexcavated areas located within the periphery
without detrimental settlement. Alternate setbacks and of the building,supported by a concrete pier or metal
clearances are permitted,subject to the approval of the pedestal at a height greater than 8"from the exposed earth
building official. The building official is permitted to and the earth is covered by an impervious moisture
require an investigation and recommendation of a barrier.
qualified engineer to demonstrate that the intent of the
Columns shall be restrained to prevent lateral
code has been satisfied. Such an investigation displacement at the bottom end. Wood columns shall not
(geotechnical evaluation)shall include consideration of be less in nominal size than 4"x 4"or approved
material,height of slope,slope gradient,load intensity and equivalent.
erosion characteristics of slope material. Exception:
Mason County Development Regulations may specify 54. GIRDERS ENTERING MASONRY OR CONCRETE
additional requirements. WALLS: IRC Section R317.1 #4. The ends of wood
girders entering exterior concrete or masonry walls shall
51. UNDER-FLOOR VENTILATION: WAC amendment to IRC Section R408.1 and R408.2. The under-floor be provided with a 1/2"airspace on tops,sides and ends
unless an approved species and grade of lumber specified
space between the bottom of the floor joists and the earth in Sections R317.1 &R317.2 and listed in#56 of this
under any building(except space occupied by a basement checklist is used.
or cellar)shall be provided with ventilation openings
through foundation walls or exterior walls having-a net 55. POST-BEAM CONNECTIONS/FASTENING•IRC
area of not less than 1 square foot for each 300 square feet Section R502.9,R301. Where post and beam or girder
of under-floor space area. In addition,a ground cover
shall be installed in accordance to item#96. One construction is used to support floor framing,positive
connections shall be provided to ensure against uplift and
ventilating opening shall be within 3-feet of each comer of lateral displacement. The construction of buildings and
the building,except one side of the building shall be structures shall result in a system that provides a complete
permitted to have no ventilation openings. Ventilation load path that meets all requirements for the transfer of all
openings shall be covered for their height and width with loads from their point of origin through their load resisting
any of the following materials provided that the least elements to the foundation.
dimension of the covering shall not exceed'/.": 1)
perforated sheet metal plates not less than.070"thick, 2) 56. MINIMUM STANDARDS&PROTECTION
Expanded sheet metal plates not less than.047"thick, 3) AGAINST DECAY: IRC Sections R317.1,R317.2,&
Cast iron grills or grating,4)Extruded load-bearing brick R317.3,R502.1,R602.1,R802.1. In areas subject to
vents,5)Hardware cloth of.035 wire or heavier, 6) decay and where required,the use of an naturally durable
7
wood and grade of lumber shall be required,including framing from opposite sides of a beam or partition shall
wood pressure treated in accordance with AWPA U1, lap a minimum of 3"and shall be nailed together with
listed in Section 4,or naturally durable wood such as three 1 Od-face nails. A wood splice with strength equal to
decay resistant redwood,black locust,black walnut or or greater than that provided by the nailed lap is
cedar. Pressure-preservative-treated wood shall bear the permitted. Joists framing into the side of a wood girder
quality mark of an approved agency in accordance to shall be supported by approved framing anchors or on
R317.2. Field cut ends,notches and drilled holes of ledger strips not less than 2-inches x 2-inches.Joists shall
preservative-treated wood shall be treated in the field in be supported laterally at the ends and at each intermediate
accordance to AWPA M4. All wood embedded in support by full depth solid blocking not less than 2"
concrete exposed to weather that supports permanent nominal thickness;or by attachment to a full-depth
structures intended for human occupancy shall be header,band or rim joist,or to an adjoining stud;or shall
approved pressure-preservative-treated wood suitable for be otherwise provided with lateral support to prevent
ground contact use,except untreated wood may be used rotation. Joists exceeding a nominal 2"x 12"shall be
entirely below groundwater level or continuously supported laterally by solid blocking,diagonal bridging
submerged in fresh water.Approved naturally durable or (wood or metal),or a continuous 1"x 3"strip nailed
pressure-preservative-treated wood shall be used for those across the bottom of joists perpendicular to joists at
portions of wood members that form the structural intervals not exceeding 8'0". See Figure R502.2 for floor
supports of buildings,balconies,porches or similar framing information and Tables 502.3.1(1),R502.3.1(2),
permanent building appurtenances when they are exposed R502.3.3(1)and R502.3.3(2)for allowable spans.
to weather without adequate protection from a roof,eave, Structural floor members shall not be cut,bored or
overhang or other covering that would prevent moisture or notched in excess of that Section R502.8. Notches in
water accumulation on the surface or at joins between solid lumber joists,rafters and beams shall not exceed 1/6
members. Load bearing dimension lumber used for joists, of the depth of the member,shall not be longer than 1/3 of
beams,girders,studs,plates,headers,rafters,trusses,and the depth of the member and shall not be located in the
ceiling joists,including,end jointed lumber,pre- middle 1/3 of the span.Notches at the ends of the
fabricated I joists, structural glue-laminated timber, member shall not exceed 1/4 the depth of the member.
structural log members, wood structural panels, The tension side of members 4 inches or greater in
fiberboard sheathing(when used structurally),hardboard nominal thickness shall not be notched except at the ends
siding(when used structurally),particleboard, of the members.The diameter of holes bored or cut into
preservative treated wood,fire-retardant-treated wood, members shall not exceed 1/3 the depth of the member.
hardwood plywood, shall be identified by a grade mark of Holes shall not be closer than 2 inches to the top or
a lumber grading or inspection agency that has been bottom of the member,or to any other hole located in the
approved by an accreditation body that complies with member.Where the member is also notched,the hole shall
DOC PS 20. In lieu of a grade mark,a certificate of not be closer than 2 inches to the notch. Engineered
inspection issued by a lumber grading or inspection wood products.Cuts,notches and holes bored in trusses,
agency meeting the same requirements shall be accepted. structural composite lumber,structural glue-laminated
FASTENERS: Fasteners for pressure preservative and members or I joists are prohibited except where permitted
fasteners for pressure-preservative and fire-retardant- by the manufacturer's recommendations or where the
treated wood shall be of hot-dipped zinc-coated effects of such alterations are specifically considered in
galvanized steel,stainless steel,silicon bronze or copper. the design of the member by a registered design
The coating weights for zinc-coated fasteners shall be in professional. Floor framing shall be Fastened in
accordance with manufacturer recommendations or in accordance with Table R602.3(1). Posts and beams used
accordance to ASTM A 653 type G 185. See also to support floor framing shall be provided with positive
manufacturer specifications or distributor specific connections to ensure against uplift and lateral
installation instructions or recommendations.Exception: displacement. Floor assemblies,where the space
1) ''/s"diameter or larger steel bolts(where required by below is used for storage or fuel-fired appliances shall
location). 2)Fasteners other than nails and timber rivets be protected from fire in accordance with R501.3.
shall be permitted to be mechanically deposited zinc- Exception: dimensional or stuctural composite wood
coated steel with coating weights in accordance with floor assemblies with a cross-sectional area equal to
ASTM B 695,Class 55,minimum. Sill plate need not be 2z10 or equivalent.
pressure treated if sill plate installed over an approved
moisture barrier such as 30 lb.Felt or equivalent and the 58. JOISTS UNDER BEARING PARTITIONS:IRC
sill plate is 8"or more above grade. Section R502.4.Joists under parallel bearing partitions
shall be of adequate size to support the load. Double
57. FLOOR FRAMING: IRC Chapter 5,Section R502.6, joists,sized to adequately support the load,that are
R502.7,R501.3. The ends of each joist,beam or girder separated to permit the installation of piping or vents shall
shall have not less than 1-'/2"bearing on wood or metal be full depth solid blocked with lumber not less than 2"in
and not less than 3"on masonry or concrete except where nominal thickness spaced not more than 4' o.c. Bearing
supported on a 1"x 4"ribbon strip and nailed to the partitions perpendicular to joists shall not be offset from
adjacent stud or by the use of approved joist hangers.Joist supporting girders,walls or partitions more than the joist
8
depth unless joists are of sufficient size to carry the attachment shall not be accomplished by the use of .-
additional load. toenails or nails subject to withdrawal. Where positive
connection to the primary building structure cannot be
59. UNDER-FLOOR CLEARANCE/REMOVAL OF verified during inspection,decks shall be self-supporting.
DEBRIS:IRC Section R317.1 #1,R408.5. When floor Decks connected to the structure shall be provided with an
joists or the bottom of a wood structural floor are located approved deck ledger connected with hot-dipped
within 18"or wood girders are located within 12"to the galvanized or stainless steel lag screws,bolts,and washers
exposed ground in crawl spaces or unexcavated area in accordance with the detail attached,"Deck Ledger
located within the periphery of the building foundation,all Attachment Details and Specifications."Girders
components of the floor assembly shall be wood approved supporting deck joists shall not be supported on deck
in areas subject to decay as identified in#56 of this ledgers or band joists.
checklist.Included are the posts,beams or girders,joists
and sub-floor. The under-floor grade shall be cleaned of Deck lateral load connections shall be provided in
all vegetation and organic material. All wood forms used accordance with R507.2.3. Decks more than 30-inches
for placing concrete and construction materials shall be above grade,shall be provided with hold-down tension
removed before the building is occupied or used for any devices,or be self-supporting. Hold-down devices shall
purpose. be installed in accordance with manufacturer
specifications,in not less than two(2)locations per deck.
60. UNDER-FLOOR ACCESS: IRC Section R408.4, As an option,where a deck is being added to an
M1305.1.4. Access shall be provided to all under-floor existing structure, 750#capacity hold down devices
spaces. Access openings through the floor shall be a may be installed at 4 locations,evenly distributed,
minimum of 18"x 24". Openings through a perimeter within 2-ft of each end of the ledger and shall fully
wall shall be at least 16"x 24". When any portion of the engage the deck joist. See IRC Figure R507.2.3(2),
through wall access is below grade,an areaway not less "Deck attachment for lateral loads."
than 16"x 24"shall be provided. The bottom of the
areaway shall be below the threshold of the access 74. ROOF DRAINAGE&DRIP EDGE:UPC 1101.11.1,
opening. Through wall access openings shall not be IRC R905.2.8.5. Roof areas of a building shall be drained
located under a door to the residence. Where appliances by roof drains or gutters. Gutters and downspouts to be
are located under floors a rough-framed access shall be installed on structures to conform with the provisions of
provided with an opening or door and an unobstructed Mason County Code,title 14 chapter 14.48(Stormwater
passageway not less than 22 inches wide and large enough Management),and IRC R401.3. If a stormwater plan is
to allow the removal of the largest appliance in the space. not required,or an alternative method is proposed,
Access shall be unobstructed by pipes,ducts or similar measures must be put in place to protect the structure from
construction. excessive splash,divert the water away from the
foundation per IRC R401.3,R405&R405.1,and protect
69. DECKS&EXTERIOR STAIRS:IRC R507. All wood the parcel(and adjacent parcels)from erosion. IRC
in contact with the ground,embedded in concrete in direct Section R903.4. Unless roofs are sloped to drain over
contact with the ground or embedded in concrete exposed roof edges,roof drains shall be installed at each low point
to the weather that supports permanent structures intended of the roof. Where required for roof drainage,scuppers
for human occupancy shall be naturally durable wood as shall be placed level with the roof surface in a wall or
specified in item#56 or approved pressure-preservative- parapet. Overflow drains shall discharge to an approved
treated wood suitable for ground contact use. In addition location and shall not be connected to roof drain lines.
naturally durable wood or pressure preservative treated
wood shall be used in those portions of wood members R905.2.8.5 A drip edge shall be provided at eaves and
that form the structural supports of buildings,balconies, gables of shingle roofs.Adjacent pieces of drip edge
porches or similar permanent building appurtenances shall be overlapped a minimum of 2 inches.Drip edges
when those members are exposed to the weather without shall extend a minimum of 0.25 inch below the roof
adequate protection from a roof,eave,overhang or other sheathing and extend up the roof deck a minimum of 2
covering that would prevent moisture or water inches.Drip edges shall be mechanically fastened to
accumulation on the surface or at joints between members. the roof deck at a maximum of 12 inches on center
Such members may include: 1)Horizontal members such with fasteners as specifi ed in Section R905.2.5.
as girders,joists and decking. 2)Vertical members such Underlayment shall be installed over the drip edge
as posts,poles and columns.3)Both horizontal and along eaves and under the drip edge on gables.Unless
vertical members. Field applied treatment is not an specifi ed differently by the shingle manufacturer,
approved method. Treatment must be applied by shingles are permitted to be flush with the drip edge.
manufacturer,see item#56 of this checklist. Where
supported by attachment to an exterior wall,decks shall be
positively anchored to the primary structure and designed
for both vertical and lateral loads as applicable. Such
9
78. PREMISE IDENTIFICATION:IRC Section R319,IFC Section 505,and Mason County Code Title 14.28. (see also checklist
item 110). Approved numbers or addresses shall be a minimum of 4"high with a stroke of/z"and shall be provided for all new
buildings in such a position as to be plainly visible and legible from the street or road fronting the property and shall be a
minimum of 4"high with a minimum width of%".Approved numbers or addresses shall be placed on all buildings,at the
beginning of long driveways when the address is not clearly visible from the access road,or in any other areas deemed necessary
by the local fire district or Fire Marshal. They shall be placed in such a position as to be plainly visible and legible from the street
or road fronting the property. Said numbers shall contrast with their background. See address posting and private road signage
requirement information attached.
79. APPROVED PLANS:IRC Sections R106.3.1,R106.4. When the building official issues a permit,the construction documents
shall be approved in writing or by stamp.One set of the construction documents so reviewed shall be retained by the building
official. The other set shall be returned to the applicant,shall be kept at the site of work and shall be open to inspection by the
building official or the duly authorized representative. The work shall be installed in accordance with the approved construction
documents,and any changes made during construction that are not in compliance with the approved construction documents shall
be resubmitted for approval as an amended set of construction documents.
86. RETAINING WALLS: IRC Section RI05.2,R404.4. Retaining walls that are not laterally supported at the top and that retain in
excess of 24-inches of unbalanced backfill shall be designed to ensure stability against overturning,sliding,excessive foundation
pressure and water uplift. Retaining walls shall be designed for a safety factor of 1.5 against lateral sliding and overturning.
Retaining walls that are not over 4' in height measured from the bottom of the footing to the top of the wall not supporting a
surcharge is exempt from permits.
96. GROUND COVER IN CRAWL SPACE:IRC R406.3.2,IECC/WSEC Table R402.4.1.1. A 6-mil thick polyethylene film
ground cover shall be laid over the ground within crawl spaces. The ground cover shall be lapped 6" minimum at the joints
and sealed with adhesive and shall extend to the foundation wall and be bonded to form a seal. The ground cover may be
omitted in crawl spaces if the crawl space has a concrete slab with a minimum thickness of 3-1/2".
110. FIRE ACCESS: Mason County Title 14,Chapter 14.17 Standards for Fire Apparatus Access Roads. All roads,driveways,or
other means of access serving structures,facilities,buildings or portions of hereafter constructed,altered,moved into,or within,
the jurisdiction and developed under permit from Mason County shall meet the requirements of the fire apparatus access road
standards.(see detail pages contained within this checklist). buildings
GENERAL REQUIREMENTS:
For the placement of new manufactured homes and for final inspections on cancelled permits
Any decks must be free standing not supported by manufactured home.
See attached detail for landing and deck requirements. Decks over 4'x 6' require separate permit.
Covered decks regardless of size require separate permit.
Permanent Address must be posted and visible from the road
Deck must be safe and meet code for year building permit was issued. Rebuilt decks are required to meet current code.
All guardrails and handrails must be in good condition and meet code for year built or current code if replaced.
Skirting must be vented lsq. ft per 150 sq. ft of area. Surface drainage shall be diverted to an approved point of
collection so as to not create a hazard. Lots shall be graded so as to drain surface water away from the skirting. The
grade away from the skirting wall shall fall a minimum of 6"within the first 10.'Exception: Where lot lines,walls,
slopes or other physical barriers prohibit 6"of fall within 10', drains or swales shall be provided to ensure drainage away
from the structure. Impervious surfaces within 10-ft of the building foundation shall be sloped a min.2%away from the
building. Gutters and downspouts must be installed with splash blocks provided
All exterior penetrations must be sealed
HWT Pressure relief line and dryer vent must exit skirting a minimum of 6"with a maximum of 24" above grade.
The unit shall have a minimum of 16"x24"crawl space access provided HOWEVER, if the unit has not received a set up
inspection and is skirted, 4 panels centrally located(one on each side of unit) shall be removed by the owner/applicant
prior to requesting the inspection. Fore additional information see item#60 in the Mason County Plan Review Checklist.
All conditions on the original or issued permit must be met
If the unit was installed by a WAINS certified installer/contractor since July 1, 2003, CTED Installer Tags must be
available
It shall be the responsibility of the person requesting the inspection to provide the manufacturer specifications,ANSI
Standards or approved engineered design for the installation of the unit and have them available on site for inspection.
Each inspection required will be assessed a fee as adopted under Mason County current fee schedule. Re-Inspection fees
will be assessed each time an inspection is requested and required items are not completed prior to the inspection being
performed
ENFORCEMENT PROVISION:
Any manufactured/mobile home and/or appurtenant structures found non-compliant with any county or state regulation
are subject to enforcement action and subsequent violation and penalties pursuant to the Mason County Code.
HINGED ROOF SYSTEM REQUIREMENTS:
Manufactured Homes with a hinged roof system with a data plate nunber ends with AC will require a
3rd party inspection performed by the manufacturer or by an inspector approved by the manufacturer.
1.) If the manufactured home has a yellow 4"x 6" label located at the electrical panel,the tow hitch, or inside
any cabinet a 3rd party inspection will be required. An inpection report prepared by the manufacturer
inspector shall be submitted to the Mason County Building Department at the time of final inspection.
2.) Hinged roof systems that do not have the AC (alternate construction) label or a data plate on the
manufactured home, shall be inspected by Mason County Building Inspector prior to enclosing the attic.
MANUFACTURED HOME INSTALLATION INSPECTION CHECKLIST
Installer Certification
If present during inspection, has the supervising installer shown proof of certification?
One or more Installer Certification Tags attached to the home indicating all installation work performed by a
certified installer? (Not required for work performed by homeowner, Park Model Manufactured Homes, or Commercial Coaches)
Site Preparation
Is the home site properly graded and sloped to prevent water from collecting under the home? (minimum 6 inch
of fall within the first 10 feet around home.) If home is pit set and/or on a sloping site, is natural drainage
adequately diverted to prevent water from collecting under home? See plan review checklist item#48 for more
information.
Installation Instructions
Are the manufacturer's installation instructions, instructions of an engineer or architect, or ANSI A225.1 —1994
ed. (for relocated homes) available for use during inspection?
Foundation & Support Piers
Do clearances under the home meet the requirements of WAC296-15OM-0610(g)? 18 inches beneath at least
75% of the lowest member of the main frame and no less than 12 inches anywhere under the home.
11
If applicable, are pre-poured concrete runners or full slabs placed to the minimum thickness required by: 1)
home manufacturer's instructions, 2) instructions of an engineer or architect, 3) ANSI A225.1 —1994 ed. (for
relocated homes)?
Do footings (individual pads, runners, or slabs)meet the local frost-depth requirements?
Are foundation pier pads and support piers sized and placed according to the specifications set forth in the: 1)
home manufacturer's instructions, 2) instructions of an engineer or architect, or 3) ANSI A225.1 — 1994 ed. (for
relocated homes)?
If prefabricated piers are used, are the piers installed according to the pier manufacturer's instructions?Has
engineering documentation been provided?
Are concrete piers shimmed and wedged so all piers make equal contact with the home? Or, are metal piers
adjusted and connected so all piers make equal contact with the home?
If an engineered full foundation system is installed, is the installation according to the system manufacturer's
instructions? Has engineering data been supplied?
Anchoring
Are anchors spaced according to:
1) home manufacturer's installation instructions,
2) the instructions of an engineer or architect, or 3)ANSI A225.1 — 1994 ed. (for relocated homes); and are
they installed according to the equipment manufacturer's instructions?
If an earthquake resistant bracing system is installed, is the installation according to the equipment
manufacturer's instructions? Has engineering data been supplied? (The requirement to use earthquake resistant
bracing systems is set by the local jurisdiction.)
Skirting
• Are skirting vents installed according to the home manufacturer's instructions? Min net free area of not
less than one square foot for each 150 square feet of under floor area as set out in WAC 296-150M-
0610(l)(d)(ii). (Homes sited in flood plains: Local jurisdictions determine venting requirements.)
• Is skirting made of materials suitable for ground contact?
• Is skirting recessed behind the siding or trim?
• Access openings located through the skirting wall shall be at least 16"x 24" inches located so that all
areas under the home are available for maintenance. Verify that skirting is provided with a sufficient
access cover. (See Checklist item #60 for more information)
Other
• Is a ground cover installed? (Minimum 6 mil black polyethylene or equivalent per WAC 296-150M-
0610 (1)(k), not required for full concrete slab with minimum thickness of three and one-half inches or
Manufactured Homes with factory installed porchs,these require the porch be seperated from rest of
crawl space no visqueen shall be placed under porch.)
• Are the structural connections of the home sections made per the manufacturer's instructions?
• Is the heating crossover duct connected properly with continuous insulation?
• Is the heating crossover duct supported off the ground? Minimum 4 inches clearance.
• Are the plumbing water and waste crossovers connected properly?
• Is the drain pipe supported according to the manufacturer's installation instructions?
12
• If under floor plumbing was shipped-loose, is it installed according to the instructions provided by the
home manufacturer?NOTE:Any deviation from the home manufacturer's original design and
instructions is considered an alteration to be permitted and inspected by Department of Labor and
Industries and must be completed by a certified plumber.
• Are all holes and tears in the belly fabric patched in an approved manner?
• If required, where a wood or pellet stove is installed, is it blocked?Is the combustion air vented to the
crawl space or exterior of the home?
• Is the dryer vented to the exterior and 1) does it comply with the dryer manufacturer's specifications; or
2) is metal with smooth interior surfaces used?
• Has the testing of water lines, waste lines, and gas lines been verified with the installer?
• Are heat pump and air conditioning condensation lines extended to the exterior of the home?
• Is the water heater pressure relief valve terminated to the exterior and then down?
• Is water piping protected against freezing per the home manufacturer's instructions?
• Or is a heat tape listed for use with manufactured homes installed per the tape
• manufacturer's instructions?
• Landings and stairs must meet the same setback conditions as any permitted structure; and, must be
shown on your site plan. Please check your "Approved Site Plan" to ensure these structures are shown
and meet the setback conditions listed.
• By definition, propane tanks and heatpumps are structures, which must meet setback conditions. Please
check your "Approved Site Plan" to ensure these structures meet the setback conditions listed.
• All other necessary permits from Mason County, Washington State and/or Federal Agencies that are
required for this proposed development and construction must be obtained prior to same development
and construction.
WAC 296-150M designates the American National Standards Institute (ANSI) A225.1-Manufactured Homes
Installation as the back instructions for installing relocated mobile or manufactured homes when the
manufacturer's installation instructions are not available. Copies of the standard are available from:
Dept. of Labor& Industries, Item Number: ANSI A225.1
Phone: 800-647-0982, option 5
13
Mason County Building Department
Residential Deck, Stair, Landing and Guard Detail
Guard installed on all decks over 30"above Grade.
The greatest riser and the greatest stair Spaced so a 4°sphere
Vertical Pickets at handrail smallest
shall not exceed the cannot pass through.
smallest by more than 3/8."
Graspable handrail on
•i
all stairways with 4 or
more risers.
Not less than 34"and
not more than 38'
vertically from nose of
tread or walking surface.
Minimum
Guard Height
36'
Handrail ends shall' z
be returned or shall E
terminate in newell '
posts or safety
`i
terminals.
Ledger at watt:
10"min. 1 Indicate ioist size/soacina Decks shall be
sitive anchored
Stair nosing not less than ffor latera vertical
3/4'but not more than _ Indicate beam loads.See Mason
1-1/4'on all solid risers County deck ledger
7 3/4' s¢e/spacing.Provide (,,,�J
unless tread depth is at max positive connection post k I• attachment detail.
least 11." Decks shall be self
I I' supporting if
connections cannot
Indicate Indicate post size,spacing ( `. be verified during
Indicate fasteners stringer size. and base connector. I [ " inspection.R502.2
Space per . r,
decking material
Triangular opening formed by 4'x4"xl6"masonry U"
riser/tread/guard are pemit- block with asphalt min
led to be open so that a 6" shim. Decks installed against manufactured
sphere cannot pass through.
homes must have beam support at this
location.
Provide 4'wood/earth clearance here,
6"all other areas. Concrete footing 12'below grade when deck is greater
than 30"above grade.See foundation info on reverse side.
Typical Door with 3 Risers CONSTRUCTION
MATERIALS Illuminate stairs
Decay resistant woods with controls
Landings are required on heartwood of redwood,cedar, Lbottomof
nd
each side of each black locust and pressure s.
exterior door. preservativety treated wood
Exception:A landing are all acceptable material for6,8is not required with use in deck construction. Field
Mire Graspable Rail
II two or fewer risers. applied treatment is not an 34"min 38"max
acceptable method. Fasteners
for pressure preservative
Landings shall not be treated woods shall be of hot- 36'min
more than top of dipped galvanized steel, lane
lower Than the top of stainless steel,silicon bronze I ")
v �` the threshold. or copper. Field cut ends, un
Exception: notches and drilled holes of
I / -- The landing shall pressure preservatively treated
not be more than 7-3/4"lower wood shall be retreated in the
than the threshold provided the field in accordance with AWPA Max.7 3/4"rise
door does not swing over the landing. M4.
IRC R319&R320.
Handrail Details
,,;,,n 11;,*LMIX 1�r RL WL All stairways with 4 or more risers shall
,',.ML To2 IN. f%ft TD 2IN have at least one handrail. Such handrails
=IN.MIN. shall be placed not less than 34" nor more.
than 38" above the nose of the treads and
shall be continuous for the full length pf the
flight. Handrail ends shall be returned or
TD2terminate in the newel post or safety termi-
nals. Handrails adjacent to the wall shall
have a space not less than 1 'l"between
the wall and the handrail. Circular hand-
rails shall have an outside diameter of at
least 1 %."and not more than 2.' Handrails
"°r"No,� " B`E
with a perimeter greater than 6 '/" shall
s..ew�.ynwl,d 6.Wd„Mlbis.
provide a graspable finger recess on both
/ l sides. Handrails shall not project more
than 4 '/z" on either side of the stairway.
A.IK 2%WL
.rL
211,IK
FOUNDATION SUPPORT SYSTEMS
• Decks 30"or less above grade: Minimum 12'x12" manufactured pier.
• Deck 30"to 5'0"above grade: Minimum 14"x14"manufactured pier set 12"below grade.
• Decks greater than 5'0"above grade: Minimum 18'x18"x18"poured in place footing set 12'below grade.
Ail deck posts shall have a positive post to footing and positive post to beam connection,
Deckheight is measured at the lowest point within 5'0" beyond the walking surface of the deck-
DECK PLAN
EXA y2LE ONLY
APFFDM.MM BAMMSS \ \ EMSTING'BUMDIW,
*BEARING REQ,D
FUR MM.HXE
MA=7_
b
FTJ, HH
T� N
'n'r' ]H Lr
II tl (1 It 1l
-'DESCE ME PQSTS &PIER A07STZ & SEACM IG 1 `DESCkiBE 1 JOIST '—*LE CRI6E BEAM SIZE &SPACING
3010"
MASON COUNTY
DEPARTMENT OF COMMUNITY DEVELOPMENT
Mason County Bldg. III, 426 West Cedar Street
3 PO Box 186, Shelton, WA 98584
www.co.masonma.us (360)427-9670 Belfair(360)275-4467 Elma(360)482-5269
Deck Ledger Attachment Details & Specifications
Please see Mason County Checklist item #56 and #69
for additional wood and fastener requirements (IRC R507)
Fastener spacing for solid sawn deck ledger to an existing band (rim) joist.
(Deck Live Load = 40 psf& Dead Load = 10 psf) •
Joist Span 6'-0" and 6'-1" to 8'-l" to 10'-1" to 12'-1" to 14'-1" to 16'-1" to
Less 8'-0" 10'-0" 12'-0" 14'-0" 16'-0" 18'-0"
i
Connection Details On-Center Spacing of Fasteners
1/2" diameter lag screw with 15/32" 30 23 18 15 13 11 10
maximum sheathing
l2" diameter bolt with 15132" 36 36 34 29 24 '21 19
maximum sheathing
1/2" diameter bolt with 15132" 36 36 29 24 21 18 16
maximum sheathing and 1/2' stacked
washers
• Lag screw tips shall extend beyond the inside face of the band/rim joist
• Maximum gap between band/rim joist and ledger shall be Vz" with spacer(s)
• Flashing shall be installed to prevent water intrusion at structural attachment
• Deck Ledger shall be minimum 2x8 pressure preservative treated No. 2 grade lumber
• Lag screws and bolts shall be staggered per diagram below
Z STAGGER FASTENERS
N 2 IN 2 ROWS
O O 5.5"MIN.FOR 2 X 8` `DISTANCE SHALL BE PERMITTED TO
6.5 MIN.FOR 2 X 10 BE REDUCED TO 4.5"IF LAG SCREWS
5"MAX 7.5"MIN.FOR 2 X 12 ARE USED OR BOLT SPACING IS
® O
TO ATTACH 2 X 8 LEDGERS TO 2 X 8
2"MIN BAND JOISTS.
LEDGER LAG SCREW OR BOLT 3/4"MIN.
lag screws must be hot-
dipped galvanized or
stainless steel only
° I
N
screw must penetrate
1-'l/Z"shank length must extend through beyond band board
i—� r _ a a minimum of'I/Z"
(no threads) existing band board
Please see typical diagrams on reverse for construction details.
Typical Construction Details
Deck Ledger shall be 2x pressure preservative treated No. 2 grade lumber(2 x 8 minimum)
Ledger shall be equal to (or greater than)joist sizes larger than 2 x 8 nominal
I sheathing
1/2" hot-dipped `--
galvanized bolts � Housewrap or
and washers, =� building paper
staggered
- Flashing membrane
Washers
create'1/2-
drainage
space
_ ni A.
- 1 PT deck joist
: PT deck ledger
_ Band joist
exterior sheathing remove siding at ledger
prior to installation
existing 2x band board continuous flashingwith drip edge
or '1-1/4" min. manuf.
solid rim joist
1/2" dia. lag screw
or thru-bolt
floor joist .
deck joist
~ 2x ledger board
embed anchors
°
2-1/2" min.
- deck joist
concrete or solid °
masonry wall .
` 1/2" dia.
expansion
• anchors
a
2x ledger board
DECK TO HOUSE LATERAL LOAD CONNECTION
International Residential Code/W1AC R507.2.3
R507.1 Where supported by attachment to an exterior wall, decks shall be positively anchored to the primary
structure and designed for both vertical and lateral loads. Such attachment shall not be accomplished by the
use of toenails or nails subject to withdrawal. Where positive connections to the structure cannot be verified
during inspection, decks shall be self-supporting. For decks with cantilevered framing members, connections
to the exterior walls or other framing members, shall be designed and constructed to resist uplift in accordance
with Table R301.5.
LATERAL ATTACHMENT:
Decks more than 30-inches above grade, measured 36-inches beyond the deck, Lateral load connections shall
be permitted to be in accordance with Figure R507.2.3.. Hold down tension devices shall be installed in not
less than 2-locations per deck, with an allowable stress design capacity of not less than 1500 pounds.
OPTION: Lateral load connections may be installed in accordance with Figure R507.2.3(2), using
holdown devices min. 750-pound capacity, evenly distributed and within 2-ft of each end of the ledger
and attachments at shown.
HOLD-DOWN OR SIMILAR
TENSION DEVICE
FLOOR SHEATHING NAILING AT
6 IN. MAXIMUM ON CENTER TO
JOIST WITH HOLD-DOWN
E+ S
+ + +
+ +
JFLOOR JOIST DECK JOIST
FIGURE 507.2.3
DECK ATTACHMENT FOR LATERAL LOADS
Siding
Sheathing
Note: Flashing for
This detail is applicable where
floor joists are parallel to deck water tightness
joists. Decking
Deck joists Table RSD2.3.1(2)
Approved joist hangers
2"min. Pressure treated 2x ledger with
fasteners per IRC Table R5D7.2
Hoidown device min 75D#capacity
\ at 4 locations,evenly distributed
Floor joists along de&,&1 within 2'of each
/ end of the ledger.Holdown devices
shall fully engage deck joist
A fully threaded 31F diameter lag
screw predrilied w/min 3"penetration
to top plate,studs,or header.
Figure R507.2.3(2)
MASON COUNTY
"r DEPARTMENT OF COMMUNITY DEVELOPMENT
Mason County Bldg. III, 426 West Cedar Street
PO Box 185, Shelton, WA 98584
www.co.mason.wa.us (360) 427-9670 Beffair(360)275-467 Eima(360)482-5269
Cutting, Notching and Boring of Joists, Rafters, and Studs
RAFTERS D/3 m2m in top
D/ maz within member
NOTCH AT RN—D D/6 maY depth D of support
T � O z�min. --�—
T _RI�A_
D/3 maz E
T D
R
D/6 m2r NOTCH NOT �D
PERMITTED WITHIlV
MZD.DT.E THIRD OF
SPAN,BUT BORED
NOTCHES NVTTHIIV 1/3 HOLES ARE
OF SPAN EACH END PER2v=TED.
i
WALL STUDS
?� C CTI-MNGA D NOTC=VG BORED HOLES
a Z"z 4'ST[�1 7/16"MAX.
SI'fID 2"z 6"STLID-23n6'-MAX.
- NOTCf3 BORED HOLE
140k--: not I I mm
pe ritt d III aiCkle z'z a'STUI-1 7/16,MA7L -JI 52LID
L3 of span 2"z 6^S IZI�2 3✓16-M4X
40%AL2,OWED 401/oALLAWED ANY WALL
NOMW-ARINGPARTMONS
'Ta N
3' D aarel d�
2"z 4"STLID-2 L8"MAM
='x 6"STLID-3 5116"MAX.
IZ3 IM NOrC BORED EIOLE-
2'z 4'SSUD-T/B"MAK
6"STUI�131B"MAX
I
2 MNtivb$vI 1 2i%ALZOWED 60-A ALLOWED
F 27CPg1•D E)CTEBIOR WALLS AMID ANY NONBEAR NG WALL
BDTTCMCF SCR BEAPX4GPAR=0T1?S OREACHBOREDSTLIDDOUBLED
CID-N . BORED HOLE NOT PE'FZNca-IED IN
MORE TFANTWO SUCCESSIVE
BC�IKI: LN.USM DOUBLED ST 3DS
SEE MANUFACTURE'S SPECIFICATIONS FOR BORING AND NOTCHING OF ENGINTEERED LU
MBER
WALL CONSTRUCTION
TABLE R602.3(1)
FASTENER SCHEDULE FOR STRUCTURAL MEMBERS
NUMBER AND TYPE OF
ITEM DESCRIPTION OF BUILDING ELEMENTS FASTENER"°` SPACING OF FASTENERS
Roof
I Blocking between joists or rafters to top plate,toe nail 3-8d (21/"x 0.1131 —
2 Ceiling joists to plate,toe nail Md(21/2"x 0.1131 -
3 Ceiling joists not attached to parallel rafter,laps over partitions, 3-10d —
face nail
4 1 Collar tie rafter,face nail or 11/"x 20 gage ridge stra' 3-10d 3"x 0.128 —
5 Rafter to plate,toe nail 2-16d 31/"x 0.1351 —
Roof rafters to ridge,valley or hip rafters:
6 toe nail 4-16d(31/2"x 0.1351 —
face nail 3-16d(31/2"x 0.135 —
wan
7 Built-up corner studs 10d(3"x 0.128") 24"c.c.
8 Built-up header,two pieces with 1/"spacer 16d(31/2"x 0.135 16"o.c.along each edge
9 Continued header,two pieces 16d(31/2"x 0.135 16"o.c.along each edge
10 1 Continuous header to stud,toe nail 4-8d(21/2"x 0.113 —
I1 Double studs,face nail 10d 3"x 0.128 24"o.c.
12 Double top plates,face nail 10d 3"x 0.128" 24"o.c.
13 Double top plates,minimum 48-inch offset of end joints, 8-16d(31/2"x 0.1350) —
face nail in lapped area
14 Sole pWe to joist or blocldn ,face nail 16d(31/2"x 0.135") 16"o.c.
15 Sole plate to joist or bloddng at braced wall panels 3-16d(31/2"x 0.135") 16"o.c.
3-8d(21/2"x 0.1131 —
16 Stud to sole plate,toe nail or
2-16d 31/2"x 0.135 —
17 Top or sole plate to stud,end nail 2-16d(31/2"x 0.135") —
18 Top plates,laps at corners and intersections,face nail 2-10d 3"x 0.128 —
19 1"brace to each stud and plate,face nail 2-8d(21/2"x 01131 —
2 staples I / —
20 1"x 6"sheathing to each bearing,face nail 2-8d(21/2"x 0.1131 —
2 staples 1 / —
21 1"x 8"sheathing to each bearing,face nail 2-8d(21/2"x 0.1131 —
3 staples 1 / —
22 Wider than 1"x 8"sheathing to each bearing,face nail 3-8d(21/2"x 0.1131 —
4 staples 13/4" —
Fioor
23 Joist to sill or girder,toe nail 3-8d(21/2"x 0.113") —
24 1"x 6"subfloor or less to each joist 2-8d(21/2"x 0.1131 —
face nail 2 staples 13/4" —
25 2"subfloor to joist or girder,blind and face nail 2-16d(31/2"x 0.135 —
26 Rim joist to top plate,toe nail(roof applications also) 8d(21/2"x 0.113 6"o.c.
27 2"planks lank&beam-floor&roo 2-16d(31/2"x 0.135" at each bearing
Nail each layer as follows:
28 Built-up girders and beams,2-inch lumber layers lOd(3"x 0.128") 32"o.c.at top and bottom andstaggered.Two nails at ends
and at each splice.
29 Ledger strip supporting joists or rafters 3-16d(31/"x 0.135") At each joist or rafter
(contnuet)
20Q9 INTERNATIONAL RESIDENTIAL CODE* 147
WALL CONSTRUCTION
TABLE R602.3(1)—continued
FASTENER SCHEDULE FOR STRUCTURAL MEMBERS
SPACING OF FASTENERS
Intermediate
DESCRIPTION OF BUILDING Edges, supports`'e
ITEM MATERIALS DESCRIPTION OF FASTENER°'` (inches)' (inches)
Wood structural panels,subfloor,roof and interior wall sheathing to framing and particleboard wall sheathing to framing
30 3/6"_1/2" 6d common(2"x 0.113'1 nail(subfloor wallp 6 128
8d common(21/2"x 0.1311 nail(roof)
31 5/16"-1/2" 6d common(2"x 0.113")nail(subfloor,wall) 6 129
8d common(21/2"x 0.1311 nail(mof)r
32 19/32"-1" 8d common nail(21/2"x 0.131") 6 129
33 11/e"_11/4" 10d common(3"x 0.1481 nail or 6 12
8d(21/2"x 0.131")deformed nail
Other wall sheathing°
34 1/2"structural cellulosic 1/2"galvanized roofin�nail,7/16"crown or 1" 3 6
fiberboard sheathing crown staple 16 ga.,1 /f'long
35 2,5/32"structural cellulosic 13/4"galvanized roofing nail,7/16"crown or 1" 3 6
fiberboard sheathing crown staple 16 ga.,11/2"long
36 1/2"gypsum sheathings 11/2 galvanized roofing nail;staple galvanized, 7 7
11/2"long;11/4 screws,Type W or S
37 5/" sum sheathin 13/4"gaavanized roofing nail;staple galvanized, 7 7
s SYF 15/6"long;15/6"screws,Type W or S
Wood structural panels,combination subfloor underisyment to framing
4"
3 6d deformed(2"x 0.120'9 nail or
38 / and less 8d common(21/2"x 0.1311 nail 6 12
39 7/"_ 1" 8d common(21/2"x 0.1311 nail or 6 12
s 8d deformed(21/2"x 0.120")nail
40 11/6"_11/4" 10d common(3"x 0.148")nail or 6 12
8d deformed(21/2"x 0.120")nail
For SL• 1 inch=25.4 mm,1 foot=304.8 mm,1 mile per hour=0.447 m/s;lksi=6.895 MFa.
a.All nails are smooth-common,box or deformed shanks except where otherwise stated.Nails used for framing and sheathing connections shall have minimum
average bending yield strengths as shown:80 ksi for shank diameter of 0.192 inch(20d common nail),90 ksi for shank diameters larger than 0.142 inch but not
larger than 0.177 inch,and 100 ksi for shank diameters of 0.142 inch or less.
b. Staples are 16 gage wire and have a minimum 7/1,-1 nch on diameter crown width.
c. Nails shall be spaced at not more than 6 inches on center at all supports where spans are 48 inches or greater.
d.Four-foot-by-8-foot or 4-foot-by-9-foot panels shall be applied%ertically.
e. Spacing of fasteners not included in this table shall be based on Table R602.3(2).
f. For regions having basic wind speed of 110 mph or greater,8d deformed(21/2"x 0.120)nails shall be used for attaching plywood and wood structural panel roof
sheathing to flaming within minimum 48-inch distance from gable end walls,if mean roof height is more than 25 feet,up to 35 feet maximum.
g.For regions having basic wind speed of 100 mph or less,nails for attaching wood structural panel roof sheathing to gable end wall framing shall be spaced 6 inches
on center.When basic wind speed is greater than 100 mph,nails for attaching panel roof sheathing to intermediate supports shall be spaced 6 inches on center for
minimum 46 inch distance from ridges,eaves and gable end walls;and 4 inches on center to gable end wall framing.
IL Gypsum sheathing shall conform to ASTM C 1396 and shall be installed in accordance with GA 253.Fiberboard sheathing shall conform to ASTM C 2(E.
L Spacing of fasteners on floor sheathing panel edges applies to panel edges supported by framing members and required blocking and at all floor perimeters only.
Spacing of fasteners on roof sheathing panel edges applies to panel edges supported by framing members and required blocking.Blocking of roof or floor sheath-
ing panel edges perpendicular to the framing members need not be provided except as required by other provisions of this code.Floor perimeter shall be supported
by framing members or solid blocking.
148 2D09 INTERNATIONAL RESIDENTIAL CODEe
MASON COUNTY
CARPORT/COVERED DECK DETAIL
ID
EXIST;KALL 5HTG ROTE,
EXIST.2x 5TUD o 24'MAX. RAFTER,BEAM,LOUR N SIZE AND THEIRS CONNECTION
ARE BASED ON THE FOLLOYUNG A5%m-rION.
METAL FLASHING VERTICAL LOAD,
1/2'0%ROOF 5HTG W/9d Ob'OG ROOF SHTG TO LEDGER FAILING SCHPL ROOF VL =10 P51-NO TILE ROOF)
AT ALL SUPPORTED PANEL ED6E5 6604'OC 5HOM =25 P51'
ROOF ASSEMBLY AND Bd 910'0G INFIELD
per IRCfIBC requlremenis ROOFING MATERIAL MIN.LEDGER SIZE SNOW LOADS>25q REQUIRE ALTERNATE RAFTER
2X0 MIN, (0-10'DI57 TO BLD6) AND BEAM SIZING APPROPRIATE FOR LOADING.
BD®6'OC 2X10 MIN.OR 2XI2'(10-16'DIST To OLDS)
\RILL BLOCKING 2XI2 MIN,OR 2XI4'n6-20'DIST TO BLD6) RAFTER 51ZE5 (DF#2)
�MATCH HITH RAFTER SIZE
BIRD MGVTH AT BEARING \ LEDGER TO EACH WALL 5TUD NAILING%WL 10'-iDISTANCE -1 1 BI11LpI
O'-10' b' 6'-20'
GUTTER(TYP) (5TU0 5PACINGHA SHALL BE 24'OC MAXI
(3)-16d STAGGER(0-10'V15T TO BLVG) '� 12'M. 2 X 6 2 X 6 2 X 10
(4)-16d 5TA6GER 1IO-16'D15T TO BLDG) Y 1"06 2 X 6 2 X i0 2 X I'?RAFTER pF12-SEE RAFTER SGIDL (5)-Ibd STAGGER(16-20'DI5T TO BLD&) 9s 24'OG 2 X b 2 X 12 1 2 X 14
METAL HANGER
51�NP50N HI OR EQUAL RIGANE CLIP AT EA.END OF RAFTER 51141-ON 1-5026 (2X6 RAFTEI21 7�5 (�y�#.��
5IW5ON LS%26(2"RAFTER) NAM JIL ✓
51MP50N 1-5500(2XI0IUP P.AFTER)OR DISTANCE TO BUILDINS
2 MAX BEAM DF92-SEE BEAM 5C11DL EGUA' !TO I6'20'
METAL P05T GAP
dr
X6 4 X 6
SIMPSON AL4(4X4 COLIW X 6 4 X d
51MP50H AL6(4X6 COLUF"OR Qi X B 4 X B
Ewa XN3 4X10
1 L C� q. X10 4X10
COLUMN HFrN I'RE55URE TREATED X l0 4 X 12
10'MAX 4X4(0-10'DI5T TO BLD6)
4X6(10-I6'D15T TO BLDG)
4*(16-20'D15T TO IN-%) W BEAM BEAM 2,
L t W SPAN SPAN MAX t
. �ACCEPTABLE
METAL POST BASE(6AVANIZED) L T
51HPS014 LCD44(04(,OLLt-1Ni �`( DISTANCE
51HP50H 1-046(4Xb COLU4W OR I TO BIDS. POOTW6 t OEM )
EQUAL W COLUMN(TYP)
2'CLR ��
6'MIN (TP) BUILDIN6
+— }— L �
SLOPE FINISH 6RD I —i'
AMY FROM BLDG CONCRETE FOOTING
i'(i'MIN 24`X24X24'THICK ACCEPTABLE Construction is limited to the
�. 3'CLR 1'02500 PSI MU
(Typ) 2-04 EA MY TOPIBOT LAYER. PI=DISTANCE TO BLWB, specifications of
�— 2'5O F-TG 3'CLR This diagram including maximum
(TYP) SECTION PLAN 10' post height maximum 10' beam
N.T5 H.T5 span (post spacing).
MASON COUNTY
DEPARTMENT OF COMMUNITY DEVELOPMENT
ADDRESS POSTING REQUIREMENTS
ADDRESSES ASSIGNED IN MASON COUNTY ARE REQUIRED TO BE POSTED
WITHIN 30 DAYS OF THEIR ASSIGNMENT.
FOR QUESTIONS PLEASE CONTACT THE DEPARTMENT AT 360-427-9670 EXT 291
At such time that the Department of community Development assigns an address, the property owner shall place,
within thirty (30) days the assigned mile point number, in contrasting.reflective material, at the driveway entrance so
that it is clearly visible from the roadway in both directions.
When there is a long shared driveway, easement or any situation where there could be confusion in finding an
entrance, mile point numbers shall be posted together at the main access point, and at each turn and/or driveway
entrance, in contrasting reflective material, to provide direction to the parcel.
Recreational properties, parcels without structures and any other parcels with an assigned address shall affix said
address with 30 days of assignment as described herein.
Posting is required to the front of any structure within 30 days of its erection.
Mile point number and or alphabetic unit designation posting shall contrast with any background, should be clearly
visible on the front of the structure and shall meet the setback requirements as described below.
Residential address numbers shall be Arabic numerals. Alphabetic designations will be of the English Alphabet.
Single Family residence designations shall be a minimum of 4 inches high with a minimum stroke width of 1/2 inch.
Water front properties with fire boat access shall post mile point numbers in a minimum of 6 inches with a 3/4 inch
stroke, the mile point number, in contrasting reflective material, on the front of a dock or post visible from the water.
New and existing buildings shall have approved address numbers and or letters, building numbers and or letters or
approved building identification posted in conformance with the addressing ordinance.
Multi family residential, small commercial or small business designations:
50 feet or less setback shall post a 6 inch minimum with a 3/4 inch stroke.
50 feet or more setback shall post a 12 inch minimum with a 1 1/2 inch stroke.
Designating unit on a building will be no less than 4 inches in height.
Designating unit on a door will be no less than 2 inches in height.
Large commercial or industrial structures designations:
100 foot setback or less shall post 18 inch minimum with 2 inch stroke.
100 foot setback or greater shall post 24 inch minimum with 3 inch stroke.
MASON COUNTY
DEPARTMENT OF COMMUNITY DEVELOPMENT
GUIDELINES FOR PRIVATE ROAD SIGNING
ALL PRIVATE ROADWAYS IN MASON COUNTY MUST BE PRE-APPROVED BY THE
MASON COUNTY DEPARTMENT OF COMMUNITY DEVELOPMENT.
IF YOU WISH TO REQUEST YOUR EASEMENT BE NAMED PLEASE CONTACT THE
DEPARTMENT AT 360-427-9670 EXT 291
• Private roads not maintained by Mason County shall be signed in conformance
with the addressing ordinance within Thirty (30) days of naming the private
roadway.
• Parcel owners using the private roadway shall be responsible for the cost and
maintenance of private road signs.
• Streets and roads shall be identified with approved signs.
• Temporary signs shall be installed at each street intersection when development
of new roadways allows passage by vehicles.
• Signs shall be a minimum of 24 inches in length or a maximum of 60 inches to
accommodate varying name lengths.
• Height shall be a minimum of 8 inches with 5-inch letters describing the
geographical indicator first then the road name ending in the road type indicator
as described in the State Sign Fabrication Manual M55.05.
• For example:
• E Island Lake Dr
• SE Brewer Rd
• W Countryside Ct
• Signs shall be of green permanent waterproof materials with white reflective
lettering. All sign supports shall be of a breakaway design, having the ability to
break away if struck by a vehicle.
• The sign shall be a minimum height of seven feet from the bottom of the sign to
surface of the ground, for visibility.
• The sign shall be located as to not interfere with site distance or road
maintenance operations.
• Private road signing, placement and maintenance shall be the responsibility of the
property owner(s).
o' Cp
MASON COUNTY
i .
DEPARTMENT OF COMMUNITY DEVELOPMENT
t"
Mason County Bldg. III, 426 West Cedar Street
—- = PO Box 186, Shelton, WA 98584
1854 www.co.rnasonma.us 360)427-9670 Belfair(360)275-4467
STANDARDS FOR INSTALLTION OF PROPANE TANKS
E
Central AC
so
compressor
(source of-ignition)
intake to direct- 10 ft(min)
vent appliance (Note 1)
o
undo
tiy5
W w.c,
10 ft(min)
(Note 1) 5 It(min) Window air
(Note 2) 10 ft(min)conditioner
(Note 1) (source of
�nN 25 ft 10 ft(min)(min) ignition)
(Note 3) K q t
spr, (m ft
2pO0 (min
t /
25 ft
(min) /
(Note 3) /
Note 1:Regardless of its size,any ASME container filled on Note 2:Refer to 6.3.6.
site must be located so that the filling connection and fixed /
maximum liquid level gauge are at least 10 ft from any Note 3:This distance can be reduced to no less than 10 It for a
external source of ignition(e.g.,open fiame,window AC, single container of 1200 gal(4.5 ms)water capacity or less,
compressor),intake to direct-vented gas appliance,or intake provided such container is at least 25 ft from any other LP-Gas
to a mechanical ventilation system.Refer to 6.3.9. container of more than 125 gal(0.5 m3)water capacity.Refer
to 6.3.3.
FIGURE L 1(b) Aboveground ASME Containers. (Figure for Ous&ati x loser only;code shall govern-)
NFPA 58 Table 6.3.1 Separation distanced between containers,important buildings and other properties.
Minimum Distances
Water Capacity Mounded or Underground b
per Container Containers a Aboveground Containers Between c
Containers
Gallons Feet Feet ;`_" . . _ Feet
<125 10 0` 0
125—250 10 10 0
251 —500 10 10 3
501 —2000 10 25 3
2001 —30,000 50 50 5
Footnote a: Distances for mounded or underground tanks shall be measured from the pressure relief valve and the filling
connection.No part of an underground ASME container shall be less than 10-ft from a building or property line that can be
built upon. (NFPA58 6.3.4)
Footnote b: The horizontal distance between the portion of a building that overhangs out of the building wall and an ASIv E
container of 125 gallons or more shall comply with the following:
(1) The horizontal distance shall be measured from a point determined by projecting the outside edge of the
overhanging structure vertically downward to grade or other level upon which the container is installed.
(2) This horizontal distance shall be at least 50%of the separation distance required in Table 6.3.1.
(3) This requirement shall apply only when the overhang extends more than 5-ft. from the building.
(4) This requirement shall not apply when the overhanging structure is 50-ft or more than the relief valve discharge
outlet.
(5) This requirement shall not apply to ASME containers,2002 to 30,000 gallons,where the container distance from
a building is in accordance with NFPA 58 6.24.2.
Footnote c: Access at the ends or sides of individual underground containers 125 gallons or more shall be provided in multi-
container installations to facilitate working with cranes or hoists.(NFPA 58 6.3.11)
Footnote& The distance measured horizontally from the point of discharge of a container pressure relief valve to any building
opening below the level of such discharge shall be in accordance with Table 6.3.9.and figure I.1(b). (NFPA 58 6.3.9)
Footnote e: Cylinders installed alongside of buildings shall be positioned so that the discharge from the cylinder pressure
relief device is located as follows: (1)At least 3-ft horizontally away from any building opening that is below the level of such
discharge.(2)At least 5-ft in any direction away from any exterior source of ignition,opening to direct-vent(sealed
combustion system)appliances,or mechanical ventilation air intakes. Cylinders shall not be located and installed underneath
a building unless the space is open to the atmosphere for 50%of its perimeter or more. The distance measured horizontally
from any point of discharge of a container pressure relief valve to any building opening below the level of such discharge shall
be in accordance with Table 6.3.9 and Figure I.1(b). (NFPA 58 6.3.7,6.3.8,and 6.3.9)
ADDITIONAL REOUIREMENTS:
1. A building permit shall be required for the installation of any sized tank serving a fixed appliance within any
structure.
2. All LP tanks shall be installed in accordance to NFPA 58 and the International Fire Code.
3. Weeds,grass,brush,trash and other combustible material shall be kept not less than 10-feet from LP tanks in any
direction.
4. When exposed to probable vehicular damage due to proximity to driveways,parking areas,or alleys,LP
containers,regulators and piping shall be protected.
Window air
conditions
r � (source of
ke
- ignition)
r Intake to direct- +Y _
vent aPPfrance r'
(min) l
(Note t) 10 It(min)
(Noft 2)
3 ft 3 tt Cylinder filled on site
5 It(min) (min) (min) at the point of use
Central AC (Note 1) (Note 3) (Note 3) from bulk truck
compressor Crawl space opening,
(source of ignition) Flinders not filled on site windows,or exhaust tan
at the point of use
For SI units,1 ft_0.3048 m
Note 1:5 ft minimum from relief valve in any drection Note 2:If the cylinder is filled on site from a bulk truck,the
away from any exterior source of ignition,openings into filling connection and vent valve must be at least 10 ft from
direct-vent appliances,or mechanical ventilation air intakes. any exterior source of ignition,openings into direct-vent
Rater to Table U.B. appliances,or mechanical ventilation air intakes.
Refer to U.S.
Note 3:Refer to 6.3.6.
FIGURE I.1(a) Cylinders. (Figure for iA.trsbutiae purposes only;cede compliance require&)
MASON COUNTY FIRE MARSHAL
Mason County Bldg. III 426 W Cedar St
PO BOX 186 Shelton,WA 98584
(360)427-9670 Ext.273
CODE ENFORCEMENT FIRE INSPECTIONS FIRE INVESTIGATION PUBLIC EDUCATION
TITLE 14 MASON COUNTY BUILDING CODE
CHAPTER 14.17 Standards for Fire Apparatus Access Roads
Effective July 1, 2007
14.17.010—This Ordinance shall not apply to roads, driveways, or other means of access to
existing structures or within subdivisions of land developed under a permit from Mason County
issued prior to the adoption of this Ordinance.
14.17.020 - Plans for fire apparatus access roads shall be submitted to the fire marshal for review
and approval prior to construction.
14.17.030 - When required by the Fire Marshal, approved signs or other approved notices shall
be provided and maintained for fire apparatus access roads to identify such roads and prohibit the
obstruction thereof.
14.17:040 - Roadways shall be constructed/designed with an all weather driving surface (gravel,
crushed rock, concrete or asphalt) and the ability to support the imposed load requirements of
fire apparatus.
14.17.050 - Fire apparatus access roads shall extend to within 150' of all portions of the exterior
wall of any residential or commercial structure, and within 50' of at least 25% of the exterior
wall of any commercial structure.
14.17.060 - A fire apparatus access road shall be a minimurn unobstructed width of 20' for
commercial structures, or 4 or more parcels or building sites. The access road may be reduced to
12' of unobstructed width with a minimum 10' wide driving surface for 1-3 parcels or building
sites on approval of the Fire Marshal.
14.17.070 - A fire apparatus access road shall have an unobstructed vertical clearance of not less
than 12' the full width of the road.
14.17.080 - A 10' wide fire apparatus access road exceeding 300' in length will be required to
make provisions for the passing of fire apparatus by providing approved pullouts. Pullouts shall
be reasonably located,based on sight distance, road curvature, and grade; and shall be a
minimum size of 8' wide and 30' long with tapered ends.
14.17.090 - A dead end fire apparatus access road longer than 300' is required to provide
provisions for the turning around of fire apparatus within 150' of any facility or structure.
See exhibit A—Hammer Head Turn Around, B —Modified Hammer Head, C- Cul De Sac Turn
Around, D & E—Pullouts, for examples of accepted turnarounds and pullouts.
14.17.100 - The turning radius of a fire apparatus access road shall be a minimum of 25' interior,
45' exterior centerline radius.
14.17.110 -A fire apparatus access road in excess of 14% grade than 150' to new residential or
commercial structures will require an automatic fire sprinkler system installed.
14.17.120 - Where more than 50 units are designed in a residential development, either single
family, multifamily, retirement or similar,there shall be a minimum of two access points to the
county road system. Such access points shall be located so as to provide for general circulation,
alternate emergency vehicle access routes,through access, and general transportation design
considerations. One of these access points may be for emergency vehicle use only where the
number of units does not exceed 100. Design of an"emergency vehicle use only" access must
be approved by the local fire district and Fire Marshal.
14.17.130 - When buildings are completely protected with an automatic fire sprinkler system,the
provisions of these standards maybe modified by the Fire Marshal.
14.17.140 - When a bridge is required as part of a fire apparatus access road, it is to be
constructed and maintained in accordance with nationally recognized standard. It shall have
designed live loading capacity sufficient to carry the imposed load of fire apparatus. An
evaluation by a professional engineer will be required to determine the imposed load rating for
all of the responding fire districts fire apparatus and shall be approved by the Fire District and
Fire Marshal.
14.17.150 - When access roads cannot be installed to these standards due to topography,
waterways, nonnegotiable grades or other similar conditions, the Fire Marshal is authorized to
require additional fire protection or mitigation as specified in Section 1001.9 of the UFC. The
Fire Marshal may also approve access roads which do not meet these requirements if the road
provides reasonable access under the individual facts of the case.
14.17.160 - Approved numbers or addresses shall be placed on all new commercial or residential
buildings (that require an address), at the beginning of long driveways when the address is not
clearly visible from the access road, or in any other areas deemed necessary by the local fire
district or Fire Marshal. They shall be placed in such a position as to be plainly visible and
legible from the street or road fronting the property. Said numbers shall contrast with their
background.
14.17.17.0—Traffic calming measures on fire apparatus roads (speed bumps, etc) shall be
approved by the Fire Marshal before installation.
MASON COUNTY FIRE MARSHAL
Mason County Bldg.III 426 W Cedar St
PO BOX 166 Shelton,WA 98584
(360)427-9670 Ext.273
CODE ENFORCEMENT FIRE INSPECTIONS FIRE INVESTIGATION PUBLIC EDUCATION
Cul De Sac Turn Around
Area required for turn around located at a single residence. In this special
case,the area could,for instance,consist of pasture adjacent to the building
and will to continue to function as a viable tum around in adverse weather
conditions(ie remains solid in any weather).
Requirements for roads 20'in width and commerical sites Requirements for roads 12'in width
R4
R4
R2
Driving surface R33
in this area
is not required Driving surface
in this area
is not required
R28 8
R 40
2
Minimum
MASON COUNTY FIRE MARSHAL
M Mason County Bldg. III 426 W Cedar St
PO BOX 186 Shelton,WA 98584
(360)427-9670 Ext.273
CODE ENFORCEMENT FIRE INSPECTIONS FIRE INVESTIGATION PUBLIC EDUCATION
Hammer Head Turn Around
Direction may be right or left direction(left direction is shown)
OVERHANG AREA-Driving surface in this area is not required.
No obstructions greater than twelve(12)
inches in height are allowed
Area required for turn around located at a single residence. In this special
case,the area could,for instance,consist of pasture adjacent to the building
and will to continue to function as a viable turn around in adverse weather
conditions(ie remains solid in any weather).
Requirements for roads 20'in width and commerical sites
10
18
R2
525
2
Requirements for roads 12'in width
90
10 40
1
R28 8
12
MASON COUNTY FIRE MARSHAL
L (Jason County Bldg. III 426 W Cedar St
PO BOX 186 Shelton,WA 98584
(360)427-9670 Ext.273
CODE ENFORCEMENT FIRE INSPECTIONS FIRE INVESTIGATION PUBLIC EDUCATION
Modified Hammer Head
Direction may be right or left direction (left direction is shown)
OVERHANG AREA-Driving surface in this area is not required..
No obstructions greater than twelve (12)
inches in height are allowed
Area required for turn around located at a single residence. In this special
case, the area could, for instance, consist of pasture adjacent to the building
and will to continue to function as a viable turn around in adverse weather
conditions (ie remains solid in any weather).
Requirements for roads 20' in width and commerical sites Requirements for roads 12' in width
.1g 1
10 10
25 8
10
20 90 1 90
1 10
R2 8
2 12
0
O
m
m
Turnouts n
Any dead end fire apparatus access road loner than 300 feet shall have provisions for the turning around of �
fire apparatus within 150 feet of any structure or facility and have approved provisions for the passing of fire m o W w
apparatus. o 0 D
V��
Cn
If turnouts are used to accomodate the passing of fire apparatus, they shall be reasonably located based on m O
sight distance, toad curvature and grade. Turnouts shall be a minimum of 8 fet wide and 30 feet long with W Z
� Q
tapered ends. N a n
m WDm O
Note: Only access roads which do not maintain continuous width of 20 feet or more need turnouts. Z V1 :E
cn 0 T, Z
M
m w
Turnouts may be placed on either side of the -n
access road. Adequate sight distance between 0
turnouts must be maintained. "' M
D
D Greater than 300 feet m
� < D
m I_
aDead End Access Road (Width: Minimum 12 feet) K,
°D
o U, Facility or o
Tapered Ends CD structure
located no
further than
150 feet from
the last turnout W
r_
n
m
0
c
0
D
-I
O
z
CQ�2✓� I SEE MASON COUNTY PLAN
REVIEW CHECKLIST
for important code information and details that pertain to this
structure. The numbers marked on plans correspond to the
same item number in the checklist.
Uc6
BUILDING
Lk P-1
jb
3 ► �►-�..�-►ems
I1-
zo Lo -
",4 SD2-2-71 A RECEIVED
JAN 0 5 2016
VIV. CEDAR ST.
� d
Mason County Building Department
Residential Deck, Stair, Landing and Guard Detail .
BUILiji .,
n
i
Minimum
-- ----J Guard Height
36"
i� /!
ITp YT'NJVY
A
'1'wMTA4"x4"x16"masonry
block with asphalt
shim.
X d � n S uncov.�c� I'
RECEIVED
JAN 0 5 2016
426 W. CEDAR ST.
"Wvtwo u v- i T�Au- . 1
SL-v201 �0 - n000l-i
LAZ o o l - 3 - o 0 o u1 E)
-g E
COPY
CHANGES
REVIEWED FOR SUBMIT CHANGES FOR APPROVAL
CODE COMPLIANCE PRIOR TO PERFORMING WORK
MASON COUNTY
BU IDII NT
QG DEPARTME
k Dste 2l
MUST MEET ALL CURRENT
WASHINGTON STATE CODES
D4cumeats ;�:�,:,3, d appElJred plans:
Site plan: es
Plan review hecklist:I— Pages
Engineerii3 : Y.0 Lateral Vertical THESE PLANS MUST BE
Number cf pages a _ ON THE JOB SITE
2 ICA V� -?a j ZS FOR INSPECTION