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2015, 04-06 Permit App: BLD-2015-0748 Deck Community Development Department (Staff Use Only) Permit Center 11703 East Sprague Avenue, Suite B-3 PERMIT NUMBER: Spokane Spokane Valley, WA 99206 Tel: (509) 720-5240 PERMIT FEE: Valley. Fax: (509) 688-0037 .0,0permitcenter@sookaneva I lev.orq RESIDENTIAL CONSTRUCTION PERMIT APPLICATION al NE ONSTRUCTION 0 ADDITION/REMODEL g ACCESSORY BUILDING DECK al OTHER t SITE ADDRESS: I a O (7 E 33 vvit, ASSESSORS PARCEL NO..45 1, 1-13 LEGAL DESCRIPTION: OWNER/APPLICANT (CHECK BOX,IF MAIN CONTACT❑): NAME: \1 Slnw.wLerS ADDRESS: 7i 1 1 let's);.5 (2_tti,lr pJ , CITY: ace( STATE: Wet, ZIP: 9r6 o3 PHONE: _Pb 0 —991 _ 5521 FAX: EMAIL: CONTACT NAME: Project #24.1:>--04.15-- O3�F$ RECEIVED i PHONE: FAX: EMAIL: CONTRACTOR NAME (CHECK BOX,IF MAIN CONTACT❑): APR 0 6 2015 MAILING ADDRESS: CSV PERMIT CFNTFR CITY: STATE: SUB #>{ I Zr': REV. tt PHONE; FAX: EMAIL; CONTRACTOR LICENSE No.: EXPIRES: CITY BUSINESS LICENSE NO.: DESCRIBE THE SCOPE QQF WORK IN DETAIL AND INDICATE USE & PROPOSEID E: ®face c4,-,4e. ' e(.i— )\0,,,-1-- 4 N (.rr• }ec.J \>( 60Accg5 6 e (Xec, ****YOU MUST COMPLETE THE FOLLOWING**** MARK N/A IF NOT APPLICABLE Height to Peak: Dimensions: No. of Stories: Total Habitable Space: Main Floor SQ FT: Upper Floor SQ FT: Unfinished Basement SQ Finished Basement SQ FT: FT: Garage SQ FT: Deck/Covered Patio SQ Impervious Surface 30% Slopes on FT: Area: Property: No. of Bedrooms: Construction Type: Heat Source: Sewer or Septic: TOTAL COST OF PROJECT: $ 13 3 DISCLAIMER The permitted verifies, acknowledges and agrees by their signature that: 1) if this permit is for construction or on a dwelling, the dwelling is/will be served by potable water. 2) Ownership of this City of Spokane Valley permit Inure to the property owner. 3) The signatory is the property owner or has permission to represent the property owner in this transaction. 4) All construction is to be done In full compliance with the City of Spokane Valley Development code. Referenced codes are available for review at the City of Spokane Valley Permit Center. 5) The City of Spokane Valley per- i is not a permit or approval for any violation of federal, state or local laws, codes or ordinances. 6) Plans or additional Information m; 'e. red' to be submitted and subsequently approved before this application can be processed.]j / /sSignature ii.,../--" Date: RESIDENTIAL BUILDING PLAN CHECKLIST Spokane ❑ SITE PLAN (2 COPIES): Refer to Residential Site Plan Guide Valley ❑ MECHANICAL&VENTILATION FORM (2 COPIES): Available at www.spokanevalley.orq . ❑ BUILDING PLANS (2 SETS): Drawn/drafted to scale with the information described below, as applicable: (2012 International Residential Code references included in italicized text) ❑ ELEVATIONS 0 FLOOR PLAN of each level: ❑ Show front/rear/sides of proposed building ❑ Identify finished or unfinished areas ❑ Identify roof peak and wall height(incl. basement) ❑ Identify dimensions of each room ❑Window&door location &sizes R310/R311 ❑ FOUNDATION PLAN ❑Window well locations, if applicable R310.2 ❑ Identify crawlspace, basement or slab on grade ❑ Label use of each room/area ❑ Footing sizes and locations R403.1.1 ❑Water heater location Chapter 24 ❑ Horizontal &vertical reinforcement R404.1.2.2 ❑ Furnace location M1401/Chapfer24 ❑ Supporting wood cripple walls or beams R602.9 ❑ Smoke/C:O detector locations R314/R315 ❑ Concrete foundation wall sizes 8404.1.2 ❑Whole house ventilation location R303/M1507.1 ❑ Concrete pads supporting beams or girder trusses ❑ Exhaust fan locations R303/M1507.I ❑ Crawlspace ventilation R408 ❑Attic/crawl space access locations R408.4/R807.1 ❑ Radon mitigation system IRC Appendix F ❑ Deck or concrete patio sizes and locations ❑ Fire resistant wall construction R302.6 ❑ Braced wall panel locations/method R602.10 ❑ FLOOR FRAMING PLAN of each level: ❑ Floor joist direction, size and spacing R502.3 0 MISCELLANEOUS CONSTRUCTION DETAILS ❑ Header, beam &concrete lintels R502.5/R611.8 Decks/Patios ❑ Floor plan with dimensions O ROOF FRAMING PLAN ❑ Elevations (front-and side-view) ❑ Eng. truss direction/spacing/connection R802.10 ❑ Footings/posts/beam size and locations R403.1.1 ❑ Rafter direction/spacing/connection R802 ❑ Joist/decking direction/size/spacing R502.3 o Overframing R802 ❑ Fasteners/attachment to structure R507.1 ❑ Ridge, eave and valley lines O Header/girder/beam sizes and locations R502.5 Stairways (interior and exterior) ❑ Roof and ceiling slope ❑ Stair tread rise/run/nosing dimensions R311 ❑ Roofing/underlayment/ice dam protection R901.1 ❑ Handrail height and picket spacing R311.7.8.1 ❑Attic insulation/baffles/ventilation 8806.1 ❑ Guard height and picket spacing R312 ❑ BUILDING CROSS-SECTION DETAIL showing: 0 ENERGY CODE PACKET ❑ Roof ❑ download WA State Energy Code worksheets at: ❑ Ceiling www.wsu.edu/BuildingEfficiencv/EnergvCode.aspx o Wall ❑ Prescriptive/Component Performance worksheet ❑ Floor(s) ❑ Glazing (window/skylight) schedule worksheet ❑ Foundation Wall ❑ Heating system sizing worksheet ❑ Footing HELPFUL LINKS WHEN PREPARING YOUR CONSTRUCTION PLANS: -International Code Council free eCode access: http://publicecodes.cyberregs.com/icod/index.htm -Washington State Building Code Council: https://fortress.wa.qov/qa/apps/sbcc/Page.aspx?nid=14 -Spokane Valley Municipal Code: http://www.codepublishing.com/waispokanevallev/ x- Design for r ,.,,,,, i, , rg Code Acceptance , - No-ti.. -,. ..,-„,,_,ifr.. -,,, ui, „....., „..,..,71,1,..,-,_ kb,,t.i,,,, 1 Prescriptive Residential Wood Deck Construction Guide Based on the 2012 International Residential Code guard decking blocking 0 0 g ledger board— �� fasteners —existing house floor construction guardTfr.; ......._ ..,--post � p 111 .."— ledger board attachment I ti 4, attachment to ,� ./� „,"..-10 ' existing house i rim joist `I ��'�►"� joists r�0 So0beamri post-to-beam connection (flush,tight bearing) footing joist-to-beam post connection 11114fr Where applicable,provisions and details contained in this document are based on the International Residential Code(IRC)[bracketed text references applicable sections of the IRC]. Prescriptive construction methods recommended meet or exceed minimum requirements of the/RC.Provisions that are not found in the/RC are recommended as good industry practice.Where differences exist between provisions of this document and the IRC, provisions of the IRC shall apply.This document is not intended to preclude the use of other construction methods or materials.All construction and materials must be approved by the authority having jurisdiction. Every effort has been made to reflect the language and intent of the IRC.However, no assurance can be given that designs and construction made in accordance with this document meet the requirements of any particular jurisdiction. Copyright©2014 American Wood Council 2 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE CONTENTS MINIMUM REQUIREMENTS&LIMITATIONS 2 PROHIBITED LEDGER ATTACHMENTS 15 DECKING REQUIREMENTS 3 LEDGER BOARD FASTENERS 15 JOIST SIZE 3 NON-LEDGER DECKS-VERTICAL LOADS 17 BEAM SIZE&ASSEMBLY REQUIREMENTS 5 DECK LATERAL LOADS 17 DECK FRAMING PLAN 8 GUARD REQUIREMENTS 19 JOIST-TO-BEAM CONNECTION 9 GUARD POST ATTACHMENTS 19 JOIST HANGERS 9 STAIR REQUIREMENTS 20 POST REQUIREMENTS 10 STAIR HANDRAIL REQUIREMENTS 22 RIM JOIST REQUIREMENTS 11 STAIR FOOTING REQUIREMENTS 22 FOOTINGS 11 STAIR LIGHTING REQUIREMENTS 22 LEDGER ATTACHMENT REQUIREMENTS 13 FRAMING AT CHIMNEY OR BAY WINDOW 23 MINIMUM REQUIREMENTS&LIMITATIONS zinc-coated galvanized steel,stainless steel,silicon 1. This document applies to single level residential bronze,or copper.Hot-dipped galvanized wood decks that are attached to the house to resist fasteners shall meet the requirements of ASTMA lateral forces. [R507.2.3] 153,Standard Specification for Zinc Coating (Hot-Dip)on Iron and Steel Hardware, Class D 2. Overall deck length shall be equal to or less than for fasteners 34"diameter and smaller or Class C overall deck width. See DECK FRAMING PLAN for for fasteners with diameters over 3/8". definition of deck length and width. ■ Fasteners other than nails and timber rivets shall 3. Minimum post size is 6x6 nominal and maximum post be permitted to be of mechanically deposited zinc- height shall be in accordance with Table 4. coated steel with coating weights in accordance 4. All lumber shall be identified by the grade mark of, with ASTMB 695,Class 55,minimum. or certificate of inspection issued by,an approved • All connectors(joist hangers,cast-in-place post lumber grading or inspection bureau or agency anchors,etc.)shall be galvanized or shall be (www.alsc.org).All lumber and glued laminated stainless steel.Hardware to be hot-dipped prior to timber shall be a naturally durable species(such as fabrication shall meet ASTMA 653, Standard Redwood or Western Cedars with 90 percent or Specification for Steel Sheet,Zinc-Coated more of the width of each side is heartwood); or be (Galvanized)or Zinc-Iron Alloy-Coated pressure preservatively treated with an approved (Galvannealed)by the Hot Dip Process,G-185 process in accordance with American Wood coating.Hardware to be hot-dipped galvanized Protection Association standards(Table 1)[R317 after fabrication shall meet ASTMA 123, and R318].All lumber in contact with the ground Specification for Zinc(Hot-Dip Galvanized) shall be approved preservative treated wood suitable Coatings on Iron and Steel Products. for ground contact. [R317.1.2]All cuts shall be field treated with an approved preservative(such as • Fasteners and connectors exposed to salt water or copper naphthenate)[R402.1.2]. located within 300 feet of a salt water shoreline shall be stainless steel grade 304 or 316. 5. All nails shall meet the requirements ofASTMF ■ Fasteners and connectors shall be of the same 1667.Threaded nails as stated in this document include helical(spiral)and annular(ring-shank) corrosion-resistant material. nails. Wood screws shall meet the requirements of • Other coated or non-ferrous fasteners or hardware ANSI/ASME B18.6.1.Bolts and lag screws shall shall be as approved by the authority having meet the requirements of ANSI/ASME B18.2.1. jurisdiction. 6. Throughout this document, %2"diameter bolts and 8. Decks supporting large concentrated loads such as lag screws are specified for various connections. hot tubs are beyond the scope of this document. Edge distance and spacing requirements are based 9. This document does not apply to decks which will on%" diameter fasteners.If larger(or smaller) experience snow loads,snow drift loads, or sliding fasteners are specified,edge distance and spacing snow loads that exceed 40 psf. shall be adjusted. corrosion,the following is required 10. Lateral load resistance is limited to the prescriptive 7. To resist [R317provisions of R507.2.3 of the IRC.Alternative loads .3] and detailing shall be approved by the authority • All screws,bolts,washers,nuts,and nails for use having jurisdiction. with preservative treated wood shall be hot-dipped American Wood Council PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 3 11. Flashing shall be corrosion-resistant metal[R703.8] 12. Decks shall not be used or occupied until final of minimum nominal 0.019-inch thickness or inspection and approval is obtained. approved non-metallic material.Aluminum should 13. This document is not intended to preclude the use of not be used in direct contact with lumber treated other construction methods or materials not described with preservatives that contain copper such as ACQ, herein. Copper Azole,or ACZA. Table 1. Common Species and Use Categories for Decay Resistance. Above Ground Species Ground Contact Southern Pine X X a Douglas Fir-Larch X X 2 Hem-Fir X X w SPF X '— o Ponderosa Pine X X 0 Red Pine X X 2) X X o__ Redwood Western Cedars X 25 Redwood X z 0 Western Cedars X 1.Use categories listed in Table 1 are based on the American Wood Protection Association(AWPA)Book of Standards. 2.Above Ground—UC3B;Ground Contact—UC4A. 3.Naturally durable species with 90%heartwood in width on each side need not be treated per minimum requirements. DECKING REOUIREMENTS authority having jurisdiction;however,connections equivalent to those shown for lumber or span rated All decking material shall be composed of dimension decking are assumed. lumber(2"nominal thickness)or span rated decking in accordance with the American Lumber Standard JOIST SIZE Committee Policy for Evaluation of Recommended The span of a joist,L,is measured from the face of Spans for Span Rated Decking Products (November 5, ort at one end of the joist to the face of support at 2004).Attach decking to each joist with 2-8d threaded supp nails or 2-#8 screws. Space decking boards the other end of the joist and does not include the length approximately 1/8" apart. See Figure 11 for decking of the overhangs,Lo.Use Table 2 to determine connection requirements at the rim joist.Decking allowable joist span,L4,based on lumber size and joist placement may range from an angle perpendicular to the spacing.Joist span,L,must be less than or equal to joists to an angle of 45 degrees to the joists.Each allowable joist span,LJ.Overhang length is the lesser of segment of decking must bear on a minimum of 3 joists allowable overhang,Lo,or one fourth the joist span,L/4. (or 3 supports). See Figure 1 and Figure 2 for joist span types. Decking not meeting these requirements may be substituted when the product has been approved by the American Wood Council 4 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE Table 2.Maximum Joist Spans and Overhangs.' Joist Spacing(o.c.) 12" 16" 24" 12" 16" 24" Species Size Allowable Span2(L,,) Allowable Overhang3(Lo) 2x66 9'-11" 9'-0" 7'-7" 1'-0" 1'-1" 1'-3" 2x8 13'-1" 11'-10" 9'-8" 1'-10" 2'-0" 2'-4" Southern Pine 2x10 16'-2" 14'-0" 11'-5" 3'-1" 3'-5" 2'-10" 2x12 18'-0"' 16'-6" 13'-6" 4'-6" 4'-2" 3'-4" 2x66 9'-6" 8'-4" 6'-10" 0'-11" 1'-0" 1'-2" Douglas Fir- 2x8 12'-6" 11'-1" 9'-1" 1'-8" 1'-10" 2'-2" Larch,Hem-Fir,4 2x10 15'-8" 13'-7" 11'- 1" 2'- 10" 3'-2" 2'-9" Spruce-Pine-Fir 2x12 18'-0"' 15'-9" 12'- 10" 4'-4" 3'-11" 3'-3" 2x66 8'-10" 8'-0" 6'-10" 0'-9" 0'-10" 0'-11" Redwood, 11'-8" 10'-7" 8'-8" 1'-5" 1'-7" 1'-9" Western Cedars 2x8 Ponderosa Pineg, 2x10 14'-11" 13'-0" 10'-7" 2'-5" 2'-7" 2'-8" Red Pines 2x12 17'-5" 15'-1" 12'-4" 3'-7" 3'-9" 3'-1" 1.Assumes 40 psf live load,10 psf dead load,No.2 stress grade,and wet service conditions. 2.Assumes L/360 deflection. 3.Maximum allowable overhang cannot exceed U4 or'''/of actual main span.Assumes,cantilever length/180 deflection with 220 lb point load(See Figure 1A and Figure 2). 4.Incising assumed for Douglas fir-larch,hem-fir,and spruce-pine-fir. 5.Design values based on northern species with no incising assumed. 6.Ledger shall be a minimum of 2x8 nominal.Where guards are required,outside Joists and rim joists shall be a minimum of 2x8 nominal. 7.Joist length prescriptively limited to 18'-0"for footing design. Figure 1A. Joist Span—Joists Attached at House and Bearing Over Beam. existing wall optional overhang joist r. rim joist I II .-- blocking(at overhanging III joists only) ii T\ joist hanger A( ledger board beam(flush tight bearing) ---- post Lo or U4 `- . maximum —►—���joist span(Lg.j) overhang See Table 2 American Wood Council PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 5 Figure 1B. Joist Span—Joists Attached at House and to Side of Beam. existing wall - joist rc5: :111:fi; :1175zZIE:5 ' beam* joist hanger f 4)( ledger board *Note:beam depth must be equal to or greater than joist post O depth if joist hangers are used joist span(LsLj) See Table 2 ..9' Figure 2. Joist Span—Non-Ledger Deck. existing wall -1 optional overhang optional overhang rim joist 1/L.,- blocking(at overhanging j!I rim joist I joists only) 1!1 beam(flush -- l( tight bearing) joist beam(flush ` tight bearing) - post post Laor L/4 La or L/4 ..all— max mum �•- .. joist span(LSL�) t maximum --0.- overhang See Table 2 overhang BEAM SIZE&ASSEMBLY REOUIREMENTS Joists shall not frame in from opposite sides of the same Deck beam spans shall be in accordance with Table 3 beam. See JOIST-TO-BEAM CONNECTION details, and can extend past the post face up to LB/4 as shown in Figure 6. Figure 3.Joists may bear on the beam and extend past Where multiple 2x members are used,the deck's beam is the beam face up to the lesser of Lo or L/4 as shown in assembled by attaching the members identified in Table Figures lA and 2,or the joists may attach to the side of 3 in accordance with Figure 4[Table R602.3(1)]. the beam with joist hangers as shown in Figure 1B. American Wood Council 6 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE Table 3A. Dimension Lumber Deck Beam Spans (LB)1 for Joists Framing from One Side Only. Joist Spans(L) Less Than or Equal to: Species Size4 6' 8' 10' 12' 14' 16' 18' 2-2x6 6'-8" 5'-8" 5'-1" 4'-7" 4'-3" 4'-0" 3'-9" 2-2x8 8'-6" 7'-4" 6'-6" 5'-11" 5'-6" 5'- 1" 4'-9" 2-2x10 10'-1" 8'-9" 7'-9" 7'-1" 6'-6" 6'-1" 5'-9" Southern Pine 2-2x12 11'- 11" 10'-4" 9'-2" 8'-4" 7'-9" 7'-3" 6'-9" 3-2x6 7'-11" 7'-2" 6'-5" 5'-10" 5'-5" 5'-0" 4'-9" 3-2x8 10'-7" 9'-3" 8'-3" 7'-6" 6'-11" 6'-5" 6'-1" 3-2x10 12'-9" 11'-0" 9'-9" 8'-9" 8'-3" 7'-8" 7'-3" 3-2x12 15'-0" 13'-0" 11'-7" 10'-6" 9'-9" 9'-1" 8'-7" 3x6 or 2-2x6 5'-2" 4'-5" 3'-11" 3'-7" 3'-3" 2'-10" 2'-6" 3x8 or 2-2x8 6'-7" 5'-8" 5'-1" 4'-7" 4'-3" 3'-10" 3'-5" Douglas Fir- 3x10 or 2-2x10 8'-1" 7'-0" 6'-3" 5'-8" 5'-3" 4'-10" 4'-5" Latrch2, Hem- 3x12 or 2-2x12 9'-5" 8'-2" 7'-3" 6'-7" 6'-1" 5'-8" 5'-4" Fir , Spruce- Pine-Fite, 4x6 6 -2 5 -3 4 -8" 4 -3 3 -11 3 -8 3 -5„ Redwood, 4x8 8'-2” 7'-0" 6'-3" 5'-8" 5'-3" 4'-11" 4'-7" Western 4x10 9'-8" 8'-4" 7'-5" 6'-9" 6'-3" 5'-10" 5'-5" Cedars, 4x12 11'-2" 9'-8" 8'-7" 7'-10" 7'-3" 6'-9" 6'-4" Ponderosa Pine3, Red 3-2x6 7'-1" 6'-5" 5'-9" 5'-3" 4'-10" 4'-6" 4'-3" Pine3 3-2x8 9'-5" 8'-3" 7'-4" 6'-8" 6'-2" 5'-9" 5'-5" 3-2x10 11'-9" 10'-2" 9'- 1" 8'-3" 7'-7" 7'-1" 6'-8" 3-2x12 13'-8" 11'-10" 10'-6" 9'-7" 8'-10" 8'-3" 7'-10" 1.Assumes 40 psf live load,10 psf dead load,0360 simple span beam deflection limit,cantilever length/180 deflection limit,No.2 stress grade,and wet service conditions. 2.Incising assumed for Douglas fir-larch,hem-fir,and spruce-pine-fir. 3.Design values based on northern species with no incising assumed. 4.Beam depth must be equal to or greater than joist depth if joist hangers are used(see Figure 6,Option 3). American Wood Council PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 7 Table 3B. Glued Laminated Timber Beam Spans (LB)1 for Joists Framing from One Side Only. Joist Spans(L)Less Than or Equal to: Stress Class2 Width3 Depth4 6' 8' 10' 12' 14' 16' 18' 9-1/2" 12'-2" 10'-6" 9'-4" 8'-6" 7'-10" 7'-4" 6'-11" Balanced or 3-1/2" 11-7/8" 15'-2" 13'-1" 11'-8" 10'-8" 9'-10" 9'-2" 8'-8" Unbalanced 20F-1.5E 14" 17'-10" 15'-5" 13'-9" 12'-7" 11'-7" 10'-10" 10'-2" And Higher Grade 11-7/8" 18'-0i5 16'-8" 14'-10" 13'-7" 12'-6" 11'-8" 11'-0" Cedar 54/4" 14" 18'-0i5 18'-0i5 17'-6" 15'-11" 14'-9" 13'-9" 13'-0" 16" 18'-0i5 18'-0i5 18'-0i5 18'-0i5 16'-10" 15'-9" 14'-10" 9-1/2" 13'-11" 12'-1" 10'-9" 9'-10" 9'-1" 8'-6" 8'-0" 3-1/2" 11-7/8" 17'-5" 15'-1" 13'-5" 12'-3" 11'-4" 10'-7" 10'-0" Unbalanced 24F-1.8E 14" 18'-0i5 17'-9" 15'-10" 14'-5" 13'-4" 12'-6" 11'-9" Douglas Fir-Larch or „5 5 „ Southern Pine 11-7/8„ 18-0 18-0„ 17-1 15-7„ 14-5„ 13-6„ 12-8 6-1/4” 14” 18'-0i5 18'-0i5 18'-0i5 18'-0i5 17'-0” 15'-10” 141-11” 16" 18'-0n5 18'-0u5 18'-0i5 18'-0i5 18'-0i5 18'-0i5 17'-0" 9-1/2" 13'-11" 12'-7" 11'-8" 11'-0" 10'-5" 9'-11" 9'-7" 3-1/2" 11-7/8" 17'-5" 15'-10" 14'-8" 13'-9" 13'-1" 12'-6" 12'-0" Balanced 24F-1.8E 14" 18'-0i5 18'-0i5 17'-4" 16-3" 15'-5" 14'-9" 14'-2" Douglas Fir-Larch or 11-7/8" 18'-0i5 18'-0i5 17'-4" 16'-3" 15'-5" 14'-9" 14'-2" Southern Pine 14" „5 „5 „5 „5 ,5 5-1/4" 18-0 18-0 18-0 18-0 18'-0' 17'-6" 16'-9" 16" 18'-0u5 18'-0i5 18'-0"5 18'-0n5 18'-0a5 18'-0"5 18'-0u5 1.Assumes 40 psf live load,10 psf dead load,L/360 simple span beam deflection limit,cantilever length/180 deflection limit.Glued laminated timber shall be naturally durable or preservative treated with an oil-borne treatment In accordance with AWPA U1.See MINIMUM REQUIREMENTS&LIMITATIONS. 2.Preservative treated structural composite lumber of equal or greater capacity can be substituted. 3.Beam widths of 3-1/8"or wider can be used for the tabulated 3-1/2"width,and beam widths of 5-1/8"or wider can be used for the tabulated 5-1/4"width. 4.Beam depth must be equal to or greater than joist depth if joist hangers are used(see Figure 6,Option 3). 5.Beam span prescriptively limited to 18'-0"for footing design. Figure 3. Beam Span. joists ab)1A/ optional overhang(may occur at each end) I�VI IUI IUI— IAI IAI IAI IAI Lt ► r ! r 1_� I I \ I beam beam splice at interior post --post,typical locations --.. LB/4 max. beam span(LB): -.. beam span(LB): Ls/4 max. overhang See Table 3 See Table 3 overhang American Wood Council 8 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE Figure 4. Beam Assembly Details. 10d threaded nail or#10 wood 2 threaded nails or screws at each end or screw z3"long,staggered in splice end;splices shall be located only over 2 rows interior posts(Figure 3) If a beam is constructed with 3-members, _ 16" attach each outside member to the inside typical member as shown here. DECK FRAMING PLAN The overall deck length shall be equal to or less than the A framing plan shows the width,length,joist and beam overall deck width.Stairs and stair landings shall not be layout;the location of the ledger board,posts,and included in determining the overall deck length or width. footings;and the type,size,and spacing of the ledger See Figure 5 for an example of a typical deck framing plan. board fasteners. I Figure 5. Typical Deck Framing Plan. 1 Lumber species: (see Table 1) 1--, -, I- v l f-j///////j-I I- -� v /Chimney or % Bay Window _x ledger m I �� / board with Y2'dia. 5 Y L f9ZVZ///4 J bolts/lag screws/anchors N v F- U Fa3 @ "O.C. .n id I Y r -1 N (see Table 5) a~i I a o , r' joist hanger: lbs N - m o I _ ( (see Table 3A) I v I d X m i' N o m ' ' double or triple I trimmer hanger: lbs a v � o rn (see Table 7) a) 0Ud o o6 _X_trimmer ca o s 'd vIA o a J (see Figure 35) o. co cel ---'-� min. —� rim joist 6x6 post �/`�--," I I 1 stair stringers: / t d t f cut or solid • el) f/ �''_�/ \`_�' span: '-_ x• c` (see Figure 28) c • F o treads: x (see Table 6) t LB/4 max. beam span(LB):see Table 3 single, LB/4 max. overhang +`' " --.- overhang double,or triple x_;LB= '-_' . overall deck width: '- - American Wood Council PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 9 JOIST-TO-BEAM CONNECTION must have a minimum capacity of 100 lbs in both uplift Each joist shall be attached to the beam as shown in and lateral load directions.Joists may also attach to the Figure 6.Joists may bear on and overhang past the beam side of the beam with joist hangers per Option 3.Joists face the lesser of Lo or L/4 when Option 1 or Option 2 is shall not frame in from opposite sides of the same beam. used to attach the joist to the beam and blocking is See JOIST HANGERS for more information.Hangers, provided between joists at beam bearing.Mechanical clips,and mechanical fasteners shall be galvanized or fasteners or hurricane clips used as shown in Option 2 stainless steel(see MINIMUM REQUIREMENTS). Figure 6.Joist-to-Beam Detail. 3-8d threaded OPTION 1 OPTION 2* OPTION 3* toe nails mechanical (2 on one side, . fastener or ili Dist top of beam or I on the other) hurricane clipI ledger and joist hanger must be at same titk..„ /!, f elevation beam iril *see manufacturer's recommendations for additional requirements JOIST HANGERS Figure 7.Typical Joist Hangers. Joist hangers,as shown in Figure 7,shall have a depth of joist hanger with inside flanges at least 60%of ledger or beam depth.Each hanger shall have a minimum vertical capacity in accordance with Table 3A.The joist hanger shall be selected from an approved manufacturer's product data based on the —dimensions of the joist or header it is carrying.Joist hangers and fasteners shall be corrosion resistant(seeiItJ!J MINIMUM REQUIREMENTS), Use joist hangers with inside flanges when clearances to the edge of the beam or ledger board dictate.Do not useclip angles or brackets to support joists. Table 3A. Joist Hanger Vertical Capacity. Joist Size Minimum Capacity, lbs 2x6 400 2x8 500 2x10 600 2x12 700 American Wood Council 10 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE POST REQUIREMENTS Figure 8B. Alternate Approved Post-to-Beam All deck post sizes shall be 6x6(nominal)or larger,and Post Cap Attachment. the maximum height shall be in accordance with Table 4 . � solid sawn or and measured from grade or top of foundation, --------- ---=-_—_ __ muhi-py beam whichever is highest,to the underside of the beam. `� _-_ '�-- Under prescriptive limits of this document,8x8 nominal posts can be substituted anywhere in Table 4 but are limited to a maximum height of 14'-0".Posts shall be centered on footings.Cut ends and notches of posts shall -be field treated with an approved preservative(such as \ jti copper naphthenate)[R402.1.2].The beam shall be 8 6x6 min, wQ�., O attached to the post by notching as shown in Figure 8A POSt �.,i� or by providing an approved post cap to connect the 111 beam and post as shown in Figure 8B.All 3-ply beams ' shall be connected to the post by a post cap.All through- bolts shall have washers under the bolt head and nut. • r Attachment of the beam to the side of the post without notching is prohibited(see Figure 9). Figure 9. Prohibited Post-to-Beam Attachment Condition. Provide diagonal bracing parallel to the beam at each corner post greater than 2'-0"in height as shown in Figure 10.Diagonal bracing is prohibited on center posts.Bracing shall be fastened to the post at one end and the beam at the other with%2"diameter lag screws. ( PT!uh.bolts. 1 For non-ledger decks,(see Figure 21)diagonal bracing Note:Support of beams w! may be omitted at the beam and posts adjacent to the lag screws,or fasteners only Is prohibited. hOUSe. : nails. Bearing is required.See Figure BA. Figure 8A. Post-to-Beam Attachment Requirements. (2)Y2"diameter single 3"or 4" / through-bolts nominal or double with washers 2"nominal beam Lymtum z2" beam must RIR 55 Figure 10. Diagonal Bracing. ; bear fully on notched 6x6 6x6 min. 22Y2„ -T /• N, ---� •/ L beam ')'‘ 16 I Nit CD ?' I I o 2x4,typical (1)1/2"diameter- o lag screw with 1111 ir, 23/4" w co washers,typical I Typical Post At Splice J DIAGONAL BRACING PARALLEL TO BEAM Note:Diagonal Bracing is prohibited on center posts. American Wood Council PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 11 RIM JOIST REQUIREMENTS Attach a continuous rim joist to the ends of joists as shown in Figure 11.Attach decking to the rim joist as shown in Figure 11.For more decking attachment requirements,see DECKING REQUIREMENTS. Figure 11. Rim Joist Connection Details. joists secure decking to top of rim joist with 10d threaded nails or#10 x 3" minimum wood screws @ 6"o.c. ° • attach rim joist to end of each joist with ® ° (3)10d threaded nails or(3)#10 x 3" ® minimum wood screws rim joist FOOTINGS 1R4031 DECK FOOTINGS CLOSER THAN 5'-0"TO AN See Figure 12 and Table 4 for footing size,footing EXTERIOR HOUSE FOUNDATION WALL MUST thickness,and post attachment options and requirements. BEAR AT THE SAME ELEVATION AS THE All footings shall bear on undisturbed soil at least 12 FOOTING OF THE HOUSE FOUNDATION. inches below the undisturbed ground surface or below Do not construct footings over septic systems or leach the frost line,whichever is deeper.Contact the authority fields,utility lines,or enclosed meters.Contact local having jurisdiction to determine the specified frost line. utilities(call 811)before digging. Bearing conditions shall be verified in the field by the Pre-manufactured post anchors shall be galvanized. See building official prior to placement of concrete. Where MINIMUM REQUIREMENTS. the building official determines that in-place soils with an allowable bearing capacity of less than 1,500 psf are likely to be present at the site,the allowable bearing capacity shall be determined by a soils investigation. American Wood Council 12 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE Table 4. Post Height for 6x66 and Footing Sizes for all Posts. Post Heights' Footing Sizes2 to 4 c c 2 N ca c co .tui r a n .� m o a cn o m o Y co cn t o 2 3 e o Nal o m 0 u. `' u1°, ° °- ii ti d m a c `E-° c`v c, 0 CO y o = aix � 0 y o u. 55.10' 14' 14' 14' 14' 14' 18" 16"x16" 7" 6' 514' 14' 14' 14' 14' 14' 21" 18"x18" 8" 518' 14' 14' 12' 14' 11' 24" 21"x21" 10" 510' 14' 14' 14' 14' 14' 20" 18"x18" 8" 8' 5514' 14' 14' 14' 14' 11' 24" 21"x21" 10" 518' 14' 13' 11' 12' 8' 27" 24"x24" 11" 510' 14' 14' 14' 14' 12' 23" 20"x20" 9" 10' 514' 14' 13' 11' 13' 8' 27" 24"x24" 11" 518' 12' 11' 8' 11' 2' 31" 27"x27" 13" 510' 14' 14' 12' 14' 10' 25" 22"x22" 10" 12' 514' 13' 12' 9' 11' 5' 30" 26"x26" 13" 518' 11' 9' 6' 9' 2' 34" 30"x30" 15" 510' 14' 13' 11' 13' 8' 27" 24"x24" 11" 14' 514' 11' 10' 7' 10' 2' 32" 29"x29" 14" 518' 9' 8' 2' 8' NP 37" 33"x33" 16" 5510' 13' 12' 10' 12' 6' 29" 26"x26" 12" 16' 514' 10' 9' 5' 9' 2' 35" 31"x31" 15" 518' 7' 5' 2' 7' NP 40" 35"x35" 18" 510' 12' 11' 8' 11' 2' 31" 27"x27" 13" 18' 514' 9' 8' 2' 8' NP 37" 33"x33" 16" 518' 5' 2' 2' 6' NP 42" 37"x37" 19" 1.Assumes 40 psf live load,10 psf dead load,L5/4 and L4I4 overhangs,No 2.Stress grade and wet service conditions. 2.Assumes 1,500 psf soil bearing capacity and 150 pcf concrete.Value may be multiplied by 0.9 for corner posts. 3.Incising assumed for Douglas fir-larch,hem-fir,and spruce-pine-fir. 4.Assumes 2,500 psi compressive strength of concrete.Coordinate footing thickness with post base and anchor requirements. 5.8x8 nominal posts may be substituted anywhere in Table 4 to a maximum height of 14'. 1 American Wood Council • PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 13 Figure 12. Typical Footing Options. Cut ends of posts posts must be shall be field treated centered on footing -J with an approved �.--- preservative(such as copper —'�— Y2"diameter pre-manufactured naphthenate) rod post base 11 with post anchor about 1� I grade li 9. °: 12"diameter t° • -3 8 17 4"min cone.sem <. d . min. d -° Per O ° i °•° • ° .aTable 4 sO. V" frost depth per Table 4 '--•-•• E ! per Table 4 � per Table 4 : 4"thin. per Table 4 footings must bear gravel on undisturbed soil LEDGER ATTACHMENT REOUIREMENTS such as oriented strand board(OSB)or structural 1145071 composite lumber(SCL)including laminated veneer GENERAL:Attach the ledger board,which shall be lumber(LVL)–as band joists(or rim joists)that can equal to or greater than the deck joist depth but less than support the attachment of a deck(see Figure 14). or equal to the rim joist depth,to the house in However,some older homes might be constructed with accordance with Figures 14 and 15.The ledger shall be a band boards that are too thin(less than 1")to support a minimum nominal 2x8.When attachments are made to deck.In such cases,a non-ledger deck or a full plan the house band joist,the band joist shall be capable of submission is required. supporting the new deck.If this cannot be verified or MANUFACTURED WOOD TRUSS:A metal plate conditions at the house differ from the details herein, connected wood truss(MPCWT)is an engineered, then either a non-ledger deck or full plan submission is prefabricated structural component designed for each required.See NON-LEDGER DECKS. specific application.MPCWT's used in residential floors SIDING AND FLASHING:House siding or the are often installed with a 2x4 lumber"ribbon"at the exterior finish system must be removed prior to ends of the trusses(see Figure 13B)to tie the ends of the installation of the ledger board.Approved corrosion trusses together.The ribbon board,by itself, is not resistant flashing is required at any ledger board intended to support the deck ledger and deck. Installing connection to a wall of wood framed construction(see residential decks when the floor system for the house MINIMUM REQUIREMENTS). See Figure 14 for uses MPCWT requires a standard detail provided by the continuous flashing with drip edge.The threshold shall truss designer,a non-ledger deck,or a full plan be carefully flashed and caulked to prevent water submission.Refer to the Technical Note–Attachment of intrusion due to splash from the deck or melting snow Residential Deck Ledger to Metal Plate Connected and ice. Wood Truss Floor System for special blocking details and attachment requirements(www.sbcindustry.com). MANUFACTURED WOOD I-JOIST: The term"I- Joist"denotes manufactured wood"I"joists(see Figure 13A).Many new homes constructed with wood I joists include 1"or thicker engineered wood products(EWP)— American Wood Council • 14 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE Figure 13A. Wood I-Joist Profile. Figure 13B. Metal Plate Connected (MPC)Wood Floor Trusses with a 2x4 Lumber"Ribbon" at the Ends of the Trusses. 2x4 RIBBON BOARD-not intended for deck attachment fa*" /, mat ✓ MPC FLOOR li TRUSSES -,1 �....dit_____--FOUNDATION WALL Figure 14. General Attachment of Ledger Board to Band Joist or Rim Joist. remove siding at ledger exterior sheathing v i prior to installation existing stud wall ► threshold carefully flashed and ' caulked to prevent water intrusion existing 2x band joist ledger and joist flush on top or 1"minimum continuous flashing EWP rim joistextending past joist «� hanger 2"min. yI deck joist i ,n: �� 1-5/8"min. c�5"max. 1j1.; 1/2"diameter lag 2"min. 2x floor joist, , , screws or wood I joist, through-bolts with or MPCWT • washers • joist hanger 9 , a existing Ow • . wall /.___—__ 2x ledger board;must be greater than or equal to the depth of the deck joist and no greater than the depth of the band joist Figure 15. Attachment of Ledger Board to Foundation Wall (Concrete or Solid Masonry). embed anchors per manufacturer • ° ' recommendations to resist corrosion and decay, /'-^this area should be caulked .4 deck joist existing concrete--0.--'• °z • • or solid masonry* Iii �- wall ._�,,,, . 1/2 diameter *Note:Blocks filled • ii� approved expansion, with grout or " • epoxy,or adhesive concrete at anchors with washers ° joist hanger anchor locations ,, for new construction 2x ledger board;must be greater than or equal to the size of the joist American Wood Council • PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 15 PROHIBITED LEDGER ATTACHMENTS Figure 18. No Attachment to House Overhang Attachments to exterior veneers(brick,masonry,stone), with Ledger. hollow masonry,and to cantilevered floor overhangs or bay windows are prohibited(see Figures 17 and 18).In such cases,the non-ledger deck is required(See NON- t LEDGER DECKS). ...,,,,10.,. lill Figure 17. No Attachment to or Through ; -,. " Exterior Veneers(Brick, Masonry, Stone). LII 11 Povebrhangay \ rI iwndow iA t 1�11m1brick I= veneer or masonry chimney LEDGER BOARD FASTENERS lumber band joist(1-%z" actual)or EWP rim joist bearing Only those fasteners noted below are permitted.LEAD on a sill plate or wall plate shall be constructed with%2' ANCHORS ARE PROHIBITED. lag screws or bolts with washers per Table 5 and Figure 19(see MINIMUM REQUIREMENTS). Deck ledger connection to band joist or rim joist.The connection between a deck ledger and a 2-inch nominal Table 5. Fastener Spacing for a Southern Pine, Douglas Fir-Larch, or Hem-Fir Deck Ledger or Rim Joist and a 2-inch Nominal Solid-Sawn Spruce-Pine-Fir Band Joist or EWP Rim Joist.3,4.5,s,a (Deck Live Load=40 psf, Deck Dead Load=10 psf) Rim Joist 6'-0" 6'-1" 8'-1" 10'-1" 12'-1" 14'-1" 16'-1" Joist Span or and to to to to to to Band Joist less 8'-0" 10'-0" 12'-0" 14'-0" 16'-0" 18'-0" Connection Details On-Center Spacing of Fasteners '/a'diameter lag screw'with 1"EWP 24" " 14" 12" 10" 8" 15/3p,maximum sheathing 1-1/8„EWP 28" 211 16" 14" 12" 10" 9 1-/Z Lumber 30" 23" 18" 15" 13" 11110" 1"EWP 24" 18" 14" 12" 10" 9" 8" 1/2"diameter bolt with 1 i/e'EWP 28" 21" 16" 14" 12" 10" 9" 15/32'maximum sheathing 1-Y2"Lumber 36" 36" 34" 29" 24" 21" 19" 1/2'diameter bolt with 15/32'maximum sheathinRand 1-Y2"Lumber 36" 36" 29" 24" 21" 18" 16" W stacked washers 1. The tip of the lag screw shall fully extend beyond the inside face of the band joist. 2. The maximum gap between the face of the ledger board and face of the wall sheathing shall be 1". 3. Ledgers shall be flashed or caulked to prevent water from contacting the house band joist(see Figures 14 and 15). 4. Lag screws and bolts shall be staggered per Figure 19. 5. Deck ledgers shall be minimum 2x8 pressure-preservative-treated No.2 grade lumber,or other approved materials as established by standard engineering practice. 6. When solid-sawn pressure-preservative-treated deck ledgers are attached to engineered wood products(minimum 1"thick wood structural panel band joist or structural composite lumber including laminated veneer lumber),the ledger attachment shall be designed In accordance with accepted engineering practice.Tabulated values based on 300 lbs and 350 lbs for 1"and 1-1/8" EWP rim joist, respectively. 7. Wood structural panel sheathing,gypsum board sheathing, or foam sheathing shall be permitted between the band joist and rim joist. Stacked washers are permitted in combination with wood structural panel sheathing, but are not permitted in combination with gypsum board or foam sheathing.The maximum distance between the face of the ledger board and the face of the band joist shall be 1". 8. Fastener spacing also applies to southern pine, Douglas fir-larch,and hem-fir band joists. American Wood Council • 16 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE Placement of lag screws or bolts in deck ledgers the deck ledger(see Figure 19).Proper installation of lag The lag screws or bolts shall be placed as shown in screws or bolts shall be verified by the authority having Figure 19.The lag screws or bolts shall be staggered jurisdiction. from the top to the bottom along the horizontal run of Figure 19. Ledger Board Fastener Spacing and Clearances. See Table 5 �, stagger fasteners in 2 rowssSee Figure 14 for rim - E / joist fastener spacing O © © © 5.5"*min.for 2x8 *Distance can be reduced to 4.5" 5"max.I 6.5"min.for 2x10 if lag screws are used or bolt © © 0 © 7.5"min.for 2x12 spacing is reduced to that of lag screws to attach 2x8 2"min. lag screw,through-bolt,or ledgers to 2x8 band joists(1/2" ledger anchor with washer 3/4"min. stacked washers not permitted) Through-Bolts manufacturer's recommendations.All anchors must have Through-bolts shall have a diameter of W.Pilot holes washers. for through-bolts shall be 17/32"to 9/16"in diameter. Through-bolts require washers at the bolt head and nut. Lag Screws Lag screws shall have a diameter of W(see MINIMUM Expansion and Adhesive Anchors REQUIREMENTS).Lag screws may be used only when Use approved expansion or adhesive anchors when the field conditions conform to those shown in Figure attaching a ledger board to a concrete or solid masonry 14.See Figure 20 for lag screw length and shank wall as shown in Figure 15.Expansion and adhesive requirements.All lag screws shall be installed with anchor bolts shall have a diameter of 12". Minimum washers. spacing and embedment length shall be per the Figure 20. Lag Screw Requirements. lag screws must be hot- ) dipped galvanized or 11114\101110100, stainless steel only screw must penetrate 1-1/2"shank length must extend through _��� beyond band board rip-- ,� 9a minimum of 1/2" (no threads) existing band board Lag screw installation requirements:Each lag screw The threaded portion of the lag screw shall be inserted shall have pilot holes drilled as follows: 1)Drill a%2" into the pilot hole by turning.DO NOT DRIVE LAG diameter hole in the ledger board,2)Drill a 5/16' SCREWS WITH A HAMMER.Use soap or a wood- diameter hole into the band board of the house.DO NOT compatible lubricant as required to facilitate tightening. DRILL A'/2"DIAMETER HOLE INTO THE BAND Each lag screw shall be thoroughly tightened(snug but BOARD. not over-tightened to avoid wood damage). American Wood Council PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 17 NON-LEDGER DECKS-FOR RESISTING ELEVATION AS THE HOUSE FOOTING IF VERTICAL LOADS LOCATED CLOSER THAN 5'-0"TO A HOUSE WALL(see Figure 2 and Figure 12).For houses with Non-ledger decks use the house for resisting lateral loads basements,a cylindrical footing(caisson)is but do not utilize the exterior wall of the house to recommended to minimize required excavation at the support vertical loads(see Figure 21).Rather than basement wall.Beam size is determined by Table 3. supporting the deck on a ledger,an additional beam with Non-ledger decks shall be attached to the house per posts is provided at or within the lesser of Lo or L/4 of Table 5 and Figures 22 or 23 for lateral loads. the house.THE ASSOCIATED DECK POST FOOTINGS SHALL BE PLACED AT THE SAME Figure 21. Non-Ledger Deck-For Resisting Vertical Loads. blocking between overhanging joists rim joist at beam bearing rim �'`����iiiiijoist „� I � , ��`1*- '.elll joist overhang ��'` . —existing house `� �\ � foundation wall i beam, ` .eck footings must be at ir, 1 I posts same elevation as `� joists existing house footing install diagonals if located closer than per Figure 10 5'-0"to house wall Note:Tension device not shown. See provision for deck lateral forces. DECK LATERAL LOADS For non-ledger decks,blocking or framing angles can be Attachment to House:Decks shall be positively used in lieu of joist hangers and shall be provided on each side of each joist.Blocking shall be installed with anchored to the primary structure[R507.1].The lateral 5-1 Od threaded nails into the rim joist or the framing connection required shall be permitted to be in angle shall have a lateral capacity of 600 lb.Flashing accordance with Figure 22 or 23 for ledger and non- over the rim joist is required and must be installed in ledger decks.Hold-down tension devices shall be accordance with the flashing provisions in the LEDGER provided in not less than two locations,and shall have an ATTACHMENT REQUIREMENTS. allowable stress design capacity of not less than 1,500 lb [R507.2.3]. The wall must be sheathed with minimum 3/$' wood structural panel sheathing.Use lag screws or through- bolts when fastening to a band joist;use expansion anchors or epoxy anchors when fastening to concrete or masonry.DO NOT ATTACH TO BRICK VENEERS. VERIFY THIS CONDITION IN THE FIELD PRIOR TO UTILIZING THIS METHOD.Fasteners shall penetrate beyond the house band board and be installed per Table 5. American Wood Council 18 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE Figure 22. Lateral Load Device with Joists Parallel to Deck Joists. f,__ fasteners per Table 5 floor sheathing nailing at i 6"maximum on center to hold down or similar joist with hold down tension device I II, � x>q 7 )r threaded rod,may be J sloped up to 1:12 away from the house '`n�r� deck joist solid sawn —J Ar— beam&post w floor joist for non-ledger decks joist hanger —.r,— (for non-ledger decks, blocking or framing angle) 36"min. 2% attach to I-joist — fasteners per Table 5 w/a min. hold down or similar of(19)8d nails I tension device i deck joist 1..+.,A_ ,ilii ill il, I11 �.,...1threaded rod,may be sloped up to 1:12 �n� minimum 2x6 x 36". away from the house ,, I ,,, Attached to Joist web w/ L beam&post .. y (16)10d nails and clinch I joist for non-ledger decks 1 joist hanger ___n, (for non-ledger decks, blocking or framing angle) Figure 23. Lateral Load Device with Joists Perpendicular to Deck Joists. — threaded rod,may be sloped up to 1:12 6 ft.min. away from the house extent of blocking attach blocking to deck w/ I fasteners per Table 5 10d nails at 4"o.c.staggered hold down or similar tension device 1, I 1 tL deck joist IrW iii• C$i9 f i �' I ilt>ti l n full-depth floor joist Jam,_L blocking (I joist or joist hanger, beam&post solid joist) blocking, for non-ledger decks or reinforcing angle American Wood Council PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 19 GUARD REQUIREMENTS 24.Other methods and materials may be used for guard construction when approved by the authority having All decks greater than 30" above grade are required to jurisdiction. have a guard[R312.1]-one example is shown in Figure Figure 24. Example Guard Detail. 2x2 baluster,typical 4x4 post,typical 2x6 or 5/4 board rail cap;attach to guard post with DO NOT NOTCH -"--6-0"maximum spacing (3)#12 by 3"long screws or(3)16d threaded nails with 0.148'nominal diameter Infril 36" 2x4 top and bottom;minimumattachtoguardpostwith{2)8dthreadednailsor U N (2)#8 wood screws Z2-/�' _ ,.__ long on inside face �I Pi ,o■ k—minimum nominal 2x8 ® ® rim or outside Joist 1 (2)1/2"diameter , openings shall not allow attach balusters at top and bottom through-boltsthe passage of a 4" with(1)#8 wood screw or(2)8d and washersdiameter sphere post-frame threaded nails with 0.135"nominal diameter GUARD POST ATTACHMENTS FOR REQUIRED Figure 25.Guard posts for required guards that run GUARDS perpendicular to the deck joists shall be attached to the rim joist in accordance with Figure 26.Only hold-down Deck guard posts for required guards shall be a anchor models meeting these minimum requirements minimum 4x4(nominal)with an adjusted bending shall be used.Hold-down anchors shall have a minimum design value not less than 1,100 psi.Outside joists and allowable tension load of 1,800 pounds for a 36" rim joists to which guard posts are attached shall be a maximum guard height and be installed in accordance minimum of 2x8(nominal). , with the manufacturer's instructions. Guard posts for required guards which run parallel to the deck joists shall be attached to the outside joist per Figure 25. Guard Post to Outside-Joist Example. ► see FIGURE 24 for guard *guard posts can be installed as lir s component attachment shown in Figure 26(between joists) guard posts may be requirements if blocking is installed as shown below located on either side within 12"of each side of the post of the outside-joist at first interior bay,provide 2x blocking at guard posts guard post with hold-down anchors;attach blocking with 10d threaded nails top and bottom,each side (2)1/2"dia.through- outside-joist bolts and washers : min.2x8(nom.) II Alternate attachment of hold-down i ' , 2"min. anchors to framing members A NO2-1/2"min.and 5"max. '►s�._ " possible per manufacturer's 2"min. i' , instructions. guard post* PLAN VIEW outside-joist SECTION min.2x8(nom.) American Wood Council 20 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDEI Figure 26. Guard Post to Rim Joist Example. Alternate attachment of hold-down anchors to framing members possible per manufacturer's instructions. see FIGURE 24 forguard Pm( hold-down anchor . component attachment joists requirements 1 guard post guard post apost atlign guajoist rd ■ _ rim joist __ locations min.2x8(nom.) " t hold-down anchor rim joist rim joist min.2x8(nom.) joist min.2x8(nom./...f.44( im!7mg / minimum(2)1/2" ®�_• : . 2"min. hold-down anchor diameter through- ' 2-1/2"min.and 5"max. bolts and washers -'a� ' 2"min. at joist location between joists SECTION PLAN VIEWS I STAIR REQUIREMENTS Figure 27.Tread and Riser Detail. Stairs,stair stringers,and stair guards shall meet the requirements shown in Figure 27 through Figure 34 and riser may be open,but Table 6 except where amended bythe local shall not allow the p jurisdiction. passage of a 4"diameter All stringers shall be a minimum of 2x12. Stair stringers sphere 10"minimum .L shall not span more than the dimensions shown in Figure –. 28.If the stringer span exceeds these dimensions,then a tread width 7-3/4"maximum 4x4 post may be provided to support the stringer and riser;height shall —risers:lx material,minimum shorten its span length.The 4x4 post shall be notched not deviate from — and bolted to the stringer with(2)'/2" diameter through- one another by more than 3/8" bolts with washers per Figure 8A.The post shall be I treads:see Figure 29 and Table 6 centered on a 12"diameter or 10" square,6"thick ___.,..111 —ata"-1-114"nosing;nosing footing.The footing shall be constructed as shown in shall not deviate from one Figure 34 and attached to the post as shown in Figure 12. another by more than 3/8" An intermediate landing may also be provided to shorten the stringer span(see provisions below).If the total vertical height of a stairway exceeds 12'-0",then an intermediate landing shall be required.All intermediate stair landings must be designed and constructed as a non-ledger deck using the details in this document. Stairs shall be a minimum of 36" in width as shown in Figure 33 [R311.7].If only cut stringers are used,a minimum of three are required.For stairs greater than 36" in width,a combination of cut and solid stringers can be used,but shall be placed at a maximum spacing of 18" on center(see Figure 29).The width of each landing shall not be less than the width of the stairway served.Every rectangular landing shall have a minimum dimension of 36"measured in the direction of travel and no less than the width of the stairway served[R311.7]. American Wood Council PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 21 Figure 28.Stair Stringer Requirements. Figure 29.Tread Connection Requirements. Attachment per tread at each stringer or ledger: 2x_or 5/4 treads-(2)8d threaded nails or(2)#8 screws 22-1/2"long 3x treads-(2)16d threaded nails or(2)#8 screws a3-1/2"long stringer treads:2x_or 5/4 board 1 treads:see Table 6 "11111 ---;, 18max M, 18"max _ 36"max714 2x4 ledgers,each side,full depth of illistringers tread;attach with(4)10d threaded ` nails or(4)#8 wood screws Z3"long max.span=6'-0" F.- CUT STRINGER SOLID STRINGER J CUT STRINGER I-00ON— max.span=13'-3" SOLID STRINGER Figure 30. Stair Guard Requirements. Figure 31. Stair Stringer Attachment Detail. 6'-0"maximumrim joist or between posts 3 outside joist stair guard is required for 111011' stairs with a total rise of up. 30"or more;see GUARDi j'� -- REQUIREMENTS for 1 more information /i sloped joist hanger, minimum vertical /'� see JOIST HANGERS C for more requirements stair guard height: �. , ® ATTACHMENT WITH HANGERS 34"min.measured /; '' o from nosing of step .1-' ® 0 Table 6.Minimum Tread Size for Cut and Solid Openings for required guards on the Triangular opening shall Stringers.' sides of stair treads shall not allow not permit the passage Cut Solid a sphere 4-3/8"to pass through. of a 6"diameter sphere. Species Stringer Stringer Southern Pine 2x4 or 5/4 2x8 Douglas Fir Larch, Hem-Fir, SPF2 2x4 or 5/4 2x8 or 3x4 Redwood,Western Cedars, Ponderosa Pine,3 Red Pine3 2x4 or 5/4 2x10 or 3x4 1.Assumes 300 lb concentrated load,L/288 deflection limit,No. 2 stress grade,and wet service conditions. 2.Incising assumed for Douglas fir-larch,hem-fir,and spruce- pine-fir. 3.Design values based on northern species with no incising assumed. American Wood Council 22 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE STAIR HANDRAIL REQUIREMENTS STAIR FOOTING REQUIREMENTS 1R4031 All stairs with 4 or more risers shall have a handrail on Where the stairway meets grade,attach the stringers to at least one side(see Figure 32A) [R311.7.8].The the stair guard posts as shown in Figure 34.Posts shall handrail height measured vertically from the sloped bear on footings.All footings shall bear on solid ground plane adjoining the tread nosing shall be not less than 34 and shall be placed at least 12 inches below the inches and not more than 38 inches(see Figure 30) undisturbed ground surface or below the frost line, [R311.7.8.1].Handrails shall be graspable and shall be whichever is deeper(see Figure 34).Stringers shall bear composed of decay-resistant and/or corrosion resistant on a 2x4 bearing block attached to the post as shown. material.Handrails shall be Type I,Type II,or provide Stringers shall not bear on new or existing concrete pads equivalent graspability(see Figure 32B).Type I shall or patios that are not founded below this depth.When have a perimeter dimension of at least 4"and not greater guards are not required(see GUARD than 6-W.Type II rails with a perimeter greater than REQUIREMENTS),posts may terminate below the 6-'/4" shall provide a graspable finger recess area on both bottom tread elevation.Bolts are only required if a guard sides of the profile[R311.7.8.3].All shapes shall have a post is required. smooth surface with no sharp corners.Handrails shall STAIR LIGHTING REQUIREMENTS H2303.71 run continuously from a point directly over the lowest riser to a point directly over the highest riser and shall Stairways shall have a light source located at the top return to the guard at each end(see Figure 33).Handrails landing such that all stairs and landings are illuminated. may be interrupted by guard posts at a turn in the stair The light switch shall be operated from inside the house. [R311.7.8.2]. However,motion detected or timed switches are acceptable. Figure 33. Miscellaneous Stair Requirements. Figure 32A. Handrail Mounting Examples. — - r CI, - rn E 2 N p N Fasten handrails per manufacturer recommendations = o I '� c CO in 1i"min. — — c zeed� 'N — — 1.1"min. L M c 1'r"min. handrail 113 handrail shall 2x blocking return at each end 12'"min.—�-1i1'min.-► 11100. 10 p • 34"-38"to nosing I/ • or stairs,typical 36"min.stair width --0 I wall ( + r i - '.. corrosion-resistant r + -..—guard handrail hardware postII / r-t-t-t r..t-4-1 MOUNTED TO GUARD MOUNTED TO WALL t ) 1 1 Figure 32B. Handrail Grip Size. Figure 34. Stair Footing Detail. 14"_24" cut post at bottom tread (2)'/2"diameter through-bolts elevation when no stair with washers required only guard is required if guard is required;otherwise 14"-2" use(2)#8 wood screws a3-W , 2"max. n '""-"0 .E 4v long or(2)16d threaded nails 5" 4. am r I Attach 2x4 bearing block using ...flii stair �r+ / (8)#8 wood screws z3'/z'long °i ' stringer _/.' or(8)16d threaded nails A to . 4x4 illiNONCIRCULAR CIRCULAR RECESSED post _i_ ci [R311.7.7.3 Type I] [R311.7.7.3 Type II] 6 6" iE Perimeter:4"-6.1- Perimeter:>64" m section mint u frost depth 10"x10"square o` r 12"dia.footing American Wood Council • PRESCRIPTIVE RESIDENTIALWOOD DECK CONSTRUCTION GUIDE 23 FRAMING AT CHIMNEY OR BAY WINDOW shown in Figure lB.Joist hangers shall each have a All members at a chimney or bay window shall be minimum vertical capacity in accordance with Table 7. Bolts,screws,or lag screws used to attach the hanger to framed in accordance with Figure 35.Headers may span the ledger shall fully extend through the ledger into the a maximum of 6'-0".When a chimney or bay window is 2-inch nominal lumber band joist(1-%' actual)or EWP wider than 6'-0",one or more 6x6 posts may be added to rim joist.Otherwise a non-ledger deck is required. reduce header spans to less than 6'-0".In such cases,the post footing must meet the requirements in the FOOTINGS section.Headers shall be located no more Table 7.Trimmer Joist Hanger Vertical Capacity. than 3'-0" from the end of the trimmer joist. Joist Size Minimum Capacity, lbs Triple trimmer joists are required on each side of the 2x6 870 header if joist spacing is 12"or 16"o.c.or if the trimmer 1155 joist span exceeds 8'-6";otherwise,double trimmer joists 2x8 are permitted.Trimmer joists may bear on the beam and 2x10 1420 extend past the beam centerline up to the lesser of Lo or 2x12 1575 L/4 as shown in Figures lA and 2,or the trimmer joist may attach to the side of the beam with joist hangers as Figure 35. Detail for Framing Around a Chimney or Bay Window. a=3-0 maximum triple joist hanger,typical decking may 6'-0"maximum (Table 7) extend 6"maximum // 1 chimney or %r 1 r or chimney ` :--)(2)Y2" o Bolts,screws,or lag j bay window window d O //////////////A -' ledger screws shall fully board Q extend into band k_ -ir l r I r 8, joist or rim board triple trimmer double joist double header (2)W diameter through-bolt p typical * joist each side* g ,er han or lag screws at ledger *Trimmer joist may be double if joists are spaced *See Figure 19 for fastener spacing,) 24"o.c.or if trimmer length is 8'-6"or less 1 edge,and end distances PLAN VIEW SECTION American Wood Council 24 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE ,v�OF E4 ►��'` Opp 7ti • 1111111114 if 1742 INTERNATIONAL AMERICAN WOOD COUNCIL t'IRGIN��' It is intended that this document be used in conjunction with competent design,accurate fabrication,and adequate supervision of construction. While every effort has been made to insure the accuracy of the information presented,the American Wood Council and its members do not assume responsibility for errors or omissions in the document, nor for designs, plans, or construction prepared from it.Those using this document assume all liability arising from its use. Copyright©2007,2009, 2010,2014 American Wood Council 05-14 American Wood Council 12 a17 E 33rj. 4VE .\ \ \ \ .\, -\ \ \ N ' - c_)&\\ \-to_ \ \\ N. II I << ?r Ec,5�1 c1( 8 ►. IIfie .,) 2K F� 6xn4e� ici sN, dip Po t . . •S : t' liw �T 1 ( 1 /A'� tem �X gess 46411 4--,N1 it r r 16 oGlosp i 0:et IM( �xs(-)ic 1y 2 =, N. 1 ?v ,'� _ ?re C .}+ �0 �Z t„�,e�e�` It '----------- 111J111111 ...... __,4 .4,6,441 dawn. �,, w �re CT---37---: X( Q ')(' � �« - a 12 Co' 1?73 - r10 j . . Upw 1ftS�Yvl [N(4. 1,04,,e1- 6)''• 1e1 0.-r )17e.k 11....;14‘ #toif,vexki eVJS 3 >". 1Z title 5 t fc�S t%'• / S�ft�vrcL IC 0 L ,' 11 fl , \-)61-1‘ SfisS. e, Project »;,BLt-QOM"- 614 8 A— u.se eKsrst, RECEIVED i , 1 y ' n t y e� �xs.�� s- 14APR 0 6 2015 _ ��� h n v�5CSV PERMIT CENTE' 15 - ¢. Nem ..).K e. t J S yer5 u z � � REV. B ` i �. -= c \Yr.- a4t 9re &s.-.Jr, 1,1 _ _ t 6 �r 3 IZ r: - 2 g ode (, SiarrS. 'Peel( keyil. 5 FILEy ` ,;1:5�- �,,tf5 4_0 311,d REVIEWED FOR CODE COMPLIANCE