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HomeMy WebLinkAbout8x24 Deck and Porch Roof 2013 TOWN OF MONTVILLE Building Department 310 NORWICH-NEW LONDON TURNPIKE UNCASVILLE, CT 06382-2599 TEL. (860)848-3030 X382 FAX. (860) 848-7231 BUILDING PERMIT Permit Number: B2013-0170 Date: 13-May-13 Map/Lot 033/017-00H Owner ID: 5551000 Project Location: 35 PLATOZ DRIVE Unit: Job Description: Rebuild Existing Deck Owner Nam Richard W.Leach Tenant Name N/A Careof: 35 Platoz Drive Uncasville CT 06382- Telephone: (443)850-9745 Applicant Name: David Gray Telephone: DBA: Gray Contracting Lic/Reg Type HIC Lic/Reg No 606893 132 North Street, Unit 74 Exp Date: 30-Nov-13 Groton CT 06340- Construction Value Permit Fees Construction Information Building Value: $5,247.00 Building Fee: $60.00 Use Group: IRC Plumbing Value: $0.00 Plumbing Fee: $0.00 Code: 2005 State Building Code Mechanical Valu $0.00 Mechanical Fee $0.00 Electrical Value: $0.00 Electrical Fee: $0.00 Construction Type IRC Total Value: $5,247.00 Penalty Fee: $0.00 Permit Code: R10 C of 0 Fee: $10.00 Comment Plan Review Fe $6.00 State Ed Fee: $1.36 Total Fee Paid: $77.36 It shall be the owners repsonsibility to schedule the following inspections a minimum of 2 business days in advance: Field set of approved construction documents shall be available onsite during all inspections. BUILDING PERMIT INSPECTIONS PLUMBING,MECHANICAL,ELECTRICAL PERMIT INSPECTIONS ❑ Footing-Prior to pouring concrete ❑ R Plumbing and leak test © Deck Piers ❑ R Electrical ❑ Backfill-Footing drains and waterproofing ❑ Elec Trench-with conduit installed ❑ Concrete Slab-Prior to pouring concrete ❑ Pool Bonding ❑ Anchor Bolts-with sill plate and prior to floor framin ❑ Electrical Service CRS No: 0 ❑ Framing ❑ R HVAC ❑ Masonry Fireplace Throat or Chimney Thimble ❑ Gas Piping and leak test ❑ Fireblocking Draftstopping INSPECTION REQUIRED UPON COMPLETION ❑ Insulation • Certificate o •.proval erf i e of Occupancy Building Official's Approval: �� �� Town of Montville Building Department 310 Norwich-New London Tpke. Tel. 860-848-3030, Ext 382 Uncasville, CT 06382 Fax. 860-848-7231 RESIDENTIAL PERMIT APPLICATION FORM Permit No.: ej, 0.-3 .-)'7L1 Type of Work Occupancy Type Permit Type LI New Construction ❑Single Family ❑Building ❑Addition ❑Two-Family ❑Plumbing ❑Alteration ❑Townhouse ❑Mechanical ❑Accessory Structure 0 Electrical CRS#: /��7� Property Address: '�� d` (Number) (Street) (Unit) Job Description: /c ,/c/ ek Owner: 0-01610D Address: 5 S' 174710 7 City: �}//aJM i�,t/((_; State: 0.-1 Zip Coder.C. S Telephone _ -c7/ i. Applicant: DBA: (41)1 0 }-Vi / Address: 7 �_ LOC- �J/ J—QL) 79 i City: "�C�-11-6 State: a-1— Zip Code:4 63i, Telephone( )Contractors - Complete the Following: Y License Type: Al L- �o License No.:�<)6 "2 Expiration Date: //7_3(3 I hereby certify that the proposed work will conform to the State Building Code and all other codes as adopted by the State of Connecticut and the Town of Montville and further attest that the proposed work is authorized by the owner in fee and that I am authorized to make application for a permit for such work as described above. By checking this box, I will follow the requirements of the 2005 NEC as the alternative compliance per section E3301.2.1 of the Residential Code, instead of the electrical requirements in chapters 33 through 42 of the Residential Code. Owner/Agent Signature: Date: - Construction Value Permit Fees Building Value: Building Fee: Plumbing Value: Plumbing Fee: Mechanical Value: Mechanical Fee: Electrical Value: Electrical Fee: Total Value: Penalty Fee: C of 0 Fee: Plan Review Fee: State Ed Fee: Total Fee: 4tvised August 23,2007 Town of Montville Building Department File Receipt Date: 09-May-13 ReceiptNo: 8373 Received From: David Gray Job Address: 35 Platoz Ave. Town Fees Collected State of Connecticut Fees Collected Bldg Cash: $0.00 State Cash: $0.00 Bldg Check: $77.36 State Check: $1.36 Bldg Credit: $0.00 State Credit: $0.00 Fire Cash: $0.00 Fire Check: $0.00 Fire Credit: $0.00 Construction Value: $5,247.00 Demolition Value: $0.00 CheckNo: 1018 Received By: Address: 35 Platoz Ave. ITEM QTY $/UNIT TOTAL Building Plumbing Mechanical Electrical New Construction SF $ 118.03 $ - $ - Basement, Finished SF $ 25.96 $ - $ - Basement,Unfinished SF $ 12.40 $ - $ - Crawl Sapce SF $ 9.30 $ - Interior Renovations SF $ 36.09 $ - $ - $ - AMENITIES Kitchen EA $ - $ - $ - Full Bathroom EA $ - $ - Half-Bathroom EA $ - $ - GARAGE Attached SF $ 56.35 $ - $ - Detached SF $ 71.53 $ - $ - Under SF $ 11.03 $ - $ - Carport SF $ 19.89 $ - MECHANICA'' Warm-Air n Y/N $ - Hot Water n Y/N $ - Electric n Y/N $ - Air Conditioning n Y/N $ - ELECTRICAL SERVICE Overhead,new Amps $ - Underground,new Amps $ - Subpanel EA $ 599.50 $ - Gen Set EA $ 3,850.00 $ - SOLID FUEL BURNING APPLIANCES Prefab Metal Fireplace EA $ 6,497.70 $ - Masonry w/lfireplace EA $ 7,096.65 $ - Masonry w/2 fireplaces EA $ 11,095.70 $ - Wood Stove,free standing EA $ 2,692.25 $ - Wood stove insert EA $ 1,859.77 $ - DECKS,PORCHES,SUNROOMS Deck 150 SF $ 34.98 $ 5,247.00 Porch SF $ 149.38 $ - Sunroom SF $ 176.90 $ - $ - TOTALS $ 5,247.00 $ - $ - $ - PERMIT FEE CALCULATIONS Construction Value Fee Building $ 5,247.00 $ 60.00 Plumbing y $ - $ - Mechanical y $ - $ - Electrical y $ - $ - Working before Permit Issuance n $ - Certificate of Occupancy Fee $ 10.00 Plan Review Fee $ 6.00 State Education Fee $ 1.36 TOTALS $ 5,247.00 $ 77.36 State of Connecticut " Workers' Compensation Commission tam. / Please TYPE or PRINT IN INK Proof of Workers' Compensation Coverage when Applying for a Building Permit for the Sole Proprietor or Property Owner who WILL NOT act as General Contractor or Principal Employer APPLICANT FOR BUILDING PERMIT A Name ofApplicant for Building Permit DA„... ,(( Property located at 3 e/PL6a- in the City/Town of On C!' t l(`�r ATTEST If you are the owner of the above-named property or the sole proprietor of a business doing work on the site of the construction project at the above-named property and you WILL NOT act as the general contractor or principal employer,you are not required to have workers'compensation insurance coverage. CHECK ONE(1) BOX ONLY and complete the following: 4 UI am the OWNER of the above-named property.I WILL NOT act as the general contractor or principal employer. Signature of OWNER Applicant-- --- - —_-- Vij am the SOLE PROPRIETOR of a business doing work at the above-named property.I WILL NOT act as the general contractor or principal employer. Name of Business ( o _ 3__ Federal Employer!Of(FEIN) t Signature of SOLEPROPRIETOR Applicant i �it/ • Town of Montville Building Department CONSTRUCTION PERMIT APPROVAL Applicant is responsible for obtaining all of the required approvals. No permit will be issued until all the required signatures are obtained. ?( E-fC Property Address Job Description Required ar De tment Approval p Permit Issuance Approval Tax Collector (�� - •-- f�„�q /f3 Signature/date Comments: /, Planning & Zoning ���^ //'7��/3 Comments: i" n J/ pJ/� Signature/date I Fire Marshal - ~ r Signature/date Comments: 0% ,N -7111ti �L� ❑ Health Department Required for properties with private septic or well Comments: 112 WPCA, Administrative Vv� ( Required for properties on sewer Sigttature/date Comments: ❑ WPCA, Operations When Required by WPCA Signature/date Comments: ❑ Department of Public Works Required when project includes driveway work or certain drainage requirements Signature/date Comments: ❑ Montville Police Department Required for all permits EXCEPT one and two family residential Signature/date Comments: ❑ State Dept. of Transportation Required for Structures over 100,000 sq.ft.or with more than 200 parking spaces-Official copy of STC Certificate of Operation required—per CGS 14-311 Signature/date Building Department Review Complete Signature/date Revised May 23,2011 Town of Montville Building Department STAIRS SHEDS Stair not shown Structure has an area of more than 400 square feet — frost protection is Stair width required to be minimum of 36"above the required handrail height required,provide details(8403.1.4.1) Tread depth not identified or insufficient(9"Minimum depth required) Eave height is greater than 10 feet—frost protection is required,provide details Riser height not identified or not to code(8'/"Maximum 4"minimum) (8403.1.4.1) Riser opening can not allow the passage of a 4"sphere Ground anchors are required—provide information and details Nosing required for closed riser stairs Winder stair—detailed plans required POOLS/HOT TUBS Spiral stair—detailed plans required Provide information and details for barrier Guardrail detail not provided or insufficient detail Gate can not swing out over stairs Handrail detail not provided or insufficient detail Gate required to swing away from the pool area Headroom height not identified or insufficient Sidewall support brackets required to be protected by a barrier, provide 36"landing out from bottom step for the full width of the stairs is required information and details 36"landing required at the top of the stairs Gates to self-closing and self-latching Frost protection required,provide details and connections Doors from residence required to be alarmed OR self-closing,self-latching Pool pump receptacle dimension from the pool wall is required—show location FRAMING on plan Stud size and spacing not provided or insufficient General purpose receptacle required(min. 10 ft,max 20 ft from pool)—show Sheathing type not provided or insufficient location on the plan Plans required showing joists,beams and openings Wiring type not identified or unclear Bearing partitions not provided or indicated Wiring method not identified or unclear Framing direction not indicated or unclear Burial depth not identified or unclear Beam span&size not provided or insufficient Bonding requirements not identified or unclear Joist span size&spacing not provided Light fixtures—manufacturers installation instructions required Joist's over-spanned Electrical plan required for pool Beam over-spanned Provide design data for all unaligned wall and floor bearing points FLOOD-RESISTANT CONSTRUCTION(R323) Point loads not identified on beam data Documentation required to be submitted for the connection,anchored to resist Framing less than 18"to grade to be pressure treated or decay resistant flotation collapse or permanent lateral movement Delineation of flood hazard areas,floodway boundaries,and flood zones and Steel beam — must be stamped and signed by a Connecticut Professional Engineer the flood design elevation to be identified on the site plan(RI06.1.3) LVL's—engineering data required Elevation of the proposed lowest floor,including basement;in areas of shallow I-joists—engineering data required flooding (AO zones), the height of the proposed lowest floor, including Design loads not provided or insufficient basement,above the adjacent highest grade shall be identified(8106.1.3) Electrical systems, equipment and components, and heating, ventilation, air DECKS/PORCHES conditioning and plumbing appliances,plumbing fixtures,duct systems, and Construction documents required other service equipment shall be located at or above the design flood elevation. Dimensions required ELECTRICAL INFORMATION Framing direction not indicated Plane required showing panel locations,GFCI,switches,lights and receptacle Beam span&size not provided or insufficient locations Joist span,size&spacing not provided Panel location not identified Joist's over-spanned Receptacle locations not identified or insufficient Beam over-spanned GFCI receptacle locations not identified or insufficient Ledger—show attachment and flashing detail Lights and switches not identified or insufficient Post size or spacing not indicated Location of time clock not identified Height of deck above adjacent finished grade not provided Connections not identified or insufficient FUEL GAS INFORMATION Plans do not match site plan LP-Gas tank size and location not identified on the plans Trench detail not provided or insufficient Piping diagram not submitted or insufficient Comments: Permit application reviewed by: Vernon D.Vesey II David M.Jensen Building Official Deputy Building Official (cvised-Way 4,2007 P, .„.„....,x .ro Deck. Deiy . . , , ,,,,,,. . , ... , , . . , r. Dimension View I . ' I 15 ft j l • •;I i s ! I ! i p •roved 1N i I APPS 1 shads be es a1 • It fOf � IiI C:, ' . Bui Cod CoP s Fiets9v • ' . : f i j the r I j `I !. =_7s 'moi .. '.•:::114.4,',P;. - ' 1 Deck 1 I • : { I • 7 t I I- 15 ft j 1 , I , • 33 •i 1! Warning and Important Instructions: This is not a final design plan or estimate. EDGENET, INC.assumes inc responsibility for the correct Use or H: output of this program, All information contained on this page is!subject to the,terms in the disclaimer located at the end of this document. Adiertencia e instrcciones importantes: Esto no es un plan ni una estimacian final del diser o. EDGENET,,INC. no asume ningurta responsibilidad del use o de la salida correcto de este programaiToda la information contenida en esta pagirla este conforme a loS terminos en m la negation,situada en el extreo de este documento. • Copyright 0 1989-2013 Edgenet, Inc. F age 4 of 19 DI ID f9f07e5d-dfl2-4883 855e-65290cf755ca 1 • TM• e ProDeckDesign I A • .• i Post View If , I •• i i . i • i • • • j I • • 6inj 6in I ! _ 6in 6in BasePoint I w v p i : . , i :,! ,.; ,, { 1 • 7 • • i ••J Warning and Important Instructions: This is not a final design plan or estimate. EDGENET, INC.assumes no responsibility for the correct use or output of this program. All information contained on this page is subject to the terms in the disclaimer located at the end of this document i Ad,ertensia e instrcciones importantes: Esto no es un plan ni una estimaci6n final del diseno. EDGENET,,INC. no asume rjinguna • responsibilidad del use o de la salida correcto de este programa,Toda la informaciOn contenida en esta pagirla este conforrrje a los terminos en •!' la negaciOOn,situada en el extremo de este documento. I; I i Copyright©1989-2013'Edgenet, Inc. • Fage 5 of 19 • Do ID f9f07e5d-df12-4883-855e-65290ct755ca I ; " 3 o PDeck DesignTM 41 3 j . .: ,...40 Joist Layout View i i • i I • {' I • 1 jli I . ro a Vb. sp :.� 1' �o �o ( s, ,o o i i t I • ; � I - � : ! oin c • o I rs i + _ i ft OC i ( ! r I fi OC W y, t, 0 . o 0 0 0 0 0 0 0 Notes: i i 4.11 Joist and stringer spacing dimensions are measured in OC. • ; , i arning and Important Instructions: This is not a final design plan n or estimate. EDGENET, INC.assumesn responsibility for the correct use or ' output of this program. All inforfnation contained on this page is subject to the terms in the disclaimer locate 1 at the end of this document. Advertencia e iristrcciones importantes: Esto no es un plan ni upta estimacidn'final del disel o. EDGENET,!INC. no asume ninguna responsibilidad del use o de la salida correcto de este programa,'•Toda la informaci6n contenida en esta pagina este conforme a los terminos en la negacion,sitUada en el extremo de este documento. ! I. i Copyright p 1989-2013 Edgenet, Inc. , . Rage 6 of 19 Dof ID f9f07e5d-df12L4883-855e-65290cf755ca Pro Deck DesignTM : 4r Railing Details View 8•o- • • 3' O 3.75' .1(R-Railing Style 5 Warning and Important Instructions: This is not a final design plan or estimate. EDGENET, INC.assumes no responsibility for the correct use or output of this program. All information contained on this page is subject to the terms in the disclaimer located at the end of this document. Advertencia e instrcciones importantes: Esto no es un plan ni una estimacibn final del disel o. EDGENET, INC. no asume ninguna responsibilidad del use o de la salida correcto de este programa.Toda la informaciOn contenida en esta pagina esta conforme a los terminos en la negation,situada en el extremo de este documento. Copyright©1989-2013 Edgenet, Inc. Page 7 of 19 Doc ID f9f07e5d-df12-4883-855e-65290cf755ca PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 3 Table 1. Common preservative treatments and retention levels (pcf) for sawn lumber in ground contact.' Species ACQ-B ACQ-C ACQ-D CA-B CuN-W Southern Pine 0.40 0.40 0.40 0.21 0.11 Douglas Fir-Larch 0.40 0.40 NR 0.21 0.11 Hem-Fir 0.40 0.40 0.40 0.21 0.11 Ponderosa Pine 0.40 0.40 0.40 0.21 0.11 Red Pine 0.40 0.40 0.40 0.21 0.11 Spruce-Pine-Fir NR 0.40 NR NR NR Redwood NR NR NR NR NR a Preservatives and retentions listed in Table 1 are based on the American Wood Protection Association (AWPA)Book of Standards. NR=Treatments Not Recommended. DECKING REQUIREMENTS Decking not meeting these requirements may be All decking material shall be composed of dimension substituted when the product has been approved by the lumber(2" nominal thickness) or span rated decking in authority having jurisdiction. accordance with the American Lumber Standard Committee Policy for Evaluation of Recommended JOIST SIZE ' Spans for Span Rated Decking Products (November 5, The span of a joist is measured from the centerline of 2004). Attach decking to each joist with 2-8d threaded bearing at one end of the joist to the centerline of bearing nails or 2-#8 screws. Space decking boards at the other end of the joist and does not include the approximately 1/8" apart. See Figure 11 for decking length of the overhangs. Use Table 2 to determine joist connection requirements at the rim joist. Decking may span based on lumber size and joist spacing. See Figure be placed from an angle perpendicular to the joists to an 1 and Figure 2 for joist span types. angle of 45 degrees to the joists. Each segment of decking must bear on a minimum of 4 joists (or 4 supports). Table 2. Maximum Joist Spans (La) Joist Spacing (o.c.) Without Overhangs' With Overhangs up to LI42 Species Size 12" 16" 24" 12" 16" 24" 2x8 13'- 8" 12' - 5" 10'-2" 10' - 9" 10'- 9" 10'- 2" Southern Pine 2x10 17' - 5" 15'- 10" 13'- 1" 15'- 6" 15' - 6" 13' - 1" 2x12 18' - 0" 18'- 0" 15'- 5" 18' - 0" 18' - 0" 15' - 5" Douglas Fir- 2x8 12' - 6" 11'- 1" 9'- 1"C-75 - )'- 5" 9'- 1" ----- Larch, Hem-Fir, 2x10 15' - 8" 13'- 7" 11'- 1" 13'- 7" 13' - 7" 11'- 1" SPF3 2x12 18' - 0" 15'- 9" 12' - 10" 18'- 0" 15'- 9" 12' -10" Redwood, 2x8 11'- 8" 10'- 7" 8'- 8" 8'- 6" 8'- 6" 8' - 6" Western Cedars, 2x10 14' - 11" 13'- 0" 10'- 7" 12'- 3" 12'- 3" 10'- 7" Ponderosa Pine Red Pine' 2x12 17' - 5" 15' - 1" 12'-4" 16' - 5" 15'- 1" 12' -4" 1.Assumes 40 psf live load, 10 psf dead load,L/360 deflection, No.2 grade, and wet service conditions. See Figure 1B. 2.Assumes 40 psf live load, 10 psf dead load,L/180 cantilever deflection with 220 lb point load, No.2 grade,and wet service conditions.See Figure 1A and Figure 2. 3. Incising assumed for refractory species including Douglas fir-larch,hem-fir,and spruce-pine-fir. 4. Design values based on northern species with no incising assumed. 4 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE Figure 1A. Joist Span — Deck Attached at House and Bearing Over Beam roptional overhang existing wall o- -.0rim joist joist hanger L/ beam (flush, r tight bearing) joist ledger board 1 post LJ/4 maximum Joist Span (Li): see Table 2 -..F--------- - -0- s. overhang Figure 1B. Joist Span —Joists Attached at House and to Side of Beam koc jjoist existing wall --�- --ir�r--ir-� r-�r--�r-ir—�r�r—�r�r�r— zvbeam*-0- joist hanger joist hanger L *Note: beam depth must be equal to or greater than joist ledger board depth if joist hangers are used post Joist Span (Li): see Table 2 N. Figure 2. Joist Span —Free Standing Deck roptional overhang optional overhang—\ _:,-_][__][_:Ji lr-1r—Zr --1r-1r-1r---11---1r---1r-1r-1E-1r==J[_:][_ rim joist rim joist N.- beam ------ft-- beam -_- (flush, tight joist (flush, tight . bearing) ____ post bearing) post __-- L1/4 maximum Joist Span (L): see Table 2 Li/4 maximum overhang overhang " PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 5 BEAM SIZE &ASSEMBLY REQUIREMENTS 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 centerline up to L8/4 as Figure 6. shown in Figure 3. Joists may bear on the beam and Where multiple 2x members are used,the deck's beam is extend past the beam centerline up to L3/4 as shown in assembled by attaching the members identified in Table Figures 1 A 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 113. Table 3. Deck Beam Spans (LB)1 for Joists Framing from One Side Only Joist Spans (Lj) Less Than or Equal to: Species Size4 6' 8' 10' 12' 14' 16' 18' 2-2x6 7' - 1" 6' -2" 5' -6" 5' - 0" 4' - 8" 4" 4' - 1" 2-2x8 9' -2" 7' - 11" 7' - 1" 6' -6" 6' - 0" 5' - 7" 5' - 3" 2-2x10 11' - 10" 10' - 3" 9' -2" 8' -5" 7' -9" - 6' - 10" Southern 2-2x12 13' - 11" 12' - 0" 10' - 9" 9' - 10" 9' - 1" 8' -6" 8' - 0" Pine 3-2x6 8' -7" 7' - 8" 6' - 11" 6' - 3" 5' - 10" 5' - 5" 5' -2" 3-2x8 11' -4" 9' - 11" 8' - 11" 8' - 1" 7' -6" 7' - 0" 6' -7" 3-2x10 14' - 5" 12' - 10" 11' - 6" 10' -6" 9' - 9" 9' - 1" 8' -7" 3-2x12 17' - 5" 15' - 1" 13' -6" 12' -4" 11' - 5" 10' - 8" 10' - 1" 3x6 or 2-2x6 5' - 5" 4' - 8" 4' -2" 3' - 10" 3' -6" 3' - 1" 2' - 9" 3x8 or 2-2x8 6' - 10" 5' - 11" 5' -4" 4' - 10" 4' -6" 4' - 1" 3' -8" Douglas Fir- 3x10 or 2-2x10 8' -4" 7' - 3" 6' -6" 5' - 11" 5' -6" 5' - 1" 4' -8" Larch2, 3x12 or 2-2x12 9' - 8" 8' - 5" 7' - 6" 6'- 10" 6' -4" 5' - 11" 5' - 7" Hem-Firz, 4x6 6' - 5" 5' -6" 4' - 11" 4' -6" 4' -2" 3' - 11" 3' - 8" z SPF , 4x8 8' - 5" 7' - 3" 6' -6" 5' - 11" 5' -6" 5' -2" 4' - 10" Redwood, 4x10 9' - 11" 8' - 7" 7' - 8" 7' - 0" 6' -6" 6' - 1" 5' -8" Western Cedars, 4x12 11' - 5" 9' - 11" 8' - 10" 8' - 1" 7' -6" 7' - 0" 6' - 7" Ponderosa 3-2x6 7' -4" 6' - 8" 6' - 0" 5' -6" 5' - 1" 4' - 9" 4' -6" Pine3, Red 9' 8" 8' 6" 7' - 7" 6' 11" 6' - 5" 6' 0" 5' - 8" Pine 3-2x8 3-2x10 12' - 0" 10' - 5" 9' -4" 8' -6" 7'- 10" 7' -4" 6' - 11" 3-2x12 13' - 11" 12' - 1" 10' - 9" 9'- 10" 9' - 1" 8' -6" 8' - 1" 1. Assumes 40 psf live load, 10 psf dead load,L/360 simple span beam deflection limit,L/180 cantilever deflection limit, No.2 grade,and wet service conditions. 2. Incising assumed for refractory species including 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). Figure 3: Beam Span Types joists above optional overhang (may occur at each end) iw lviivi ini iAi ,v,IAI Ali P 'r ,,(1 H r '1 wi V1Li — --- 1 L L J beam beam splices at interior post, typical post locations LB/4 max. beam span (L6): see Table 3 beam span (LB): see Table 3T LB/4 max. war ' overhang —I overhang PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 7 JOIST-TO-BEAM CONNECTION clips used as shown in Option 2 must have a minimum Each joist shall be attached to the beam as shown in capacity of 100 lbs in both uplift and lateral load directions. Joists may also attach to the side of the beam Figure 6. Joists may bear on and overhang past the beam a maximum of LJ/4. Use Option 1 or Option 2 to attach with joist hangers per Option 3. Joists shall not frame in the joist to the beam. Option 1 shall only be used if the from opposite sides of the same beam. See JOIST deck is attached to the house with a ledger(see HANGERS for more information. Hangers, clips, and LEDGER ATTACHMENT REQUIREMENTS)or as mechanical fasteners shall be galvanized or stainless shown in Figure 23. Mechanical fasteners or hurricane steel (see MINIMUM REQUIREMENTS). Figure 6: Joist-to-Beam Detail 3-8d threaded OPTION 1* OPTION 2'* OPTION 3** toe nails , - anical (2 on one side, I ':stener or top of beam and joist 1 on the other) h . -ne dip , 10 - must be at same � ,, , W. anger elevation *Option 1 IL shall only be used if deck lt is attached beam to house o ""see manufacturer's recommendations for additional requirements JOIST HANGERS Figure 7: Typical Joist Hangers Joist hangers, as shown in Figure 7, shall each have a joist hanger with inside flanges minimum download 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 shall be galvanized or stainless steel(see MINIMUM REQUIREMENTS). Use joist hangers with inside flanges when clearances to turn the edge of the beam or ledger board dictate. Do not useclip angles or brackets to support joists.Table 3A: Joist Hanger Download Capacity Joist Size Minimum Ca s aci lbs 2x8 600 2x10 700 2x12 800 POST REQUIREMENTS notching the 6x6 as shown in Figure 8 or by providing All deck post sizes shall be 6x6(nominal)or larger, and an approved post cap to connect the beam and post as the maximum height shall be 14'-0" measured to the shown in Figure 10. All 3-ply beams shall be connected underside of the beam. Posts shall be centered on to the post by a post cap. All thru-bolts shall have footings. Cut ends of posts shall be field treated with an washers under the bolt head and nut. Attachment of the approved preservative (such as copper naphthenate) beam to the side of the post without notching is [R402.1.2]. The beam shall be attached to the post by prohibited(see Figure 9). S 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 a3" 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 member as shown here. typical DECK FRAMING PLAN A framing plan shows the joist and beam layout; the location of the ledger board, posts, and footings, and the type, size, and spacing of the ledger board fasteners. See Figure 5 for an example of a typical deck framing plan. Figure 5. Typical Deck Framing Plan Lumber species: (see Table 1) r L1 Ir r �� r Chimney or \' 1 1 r 1 r _x_ledger (Ni — c L Wi„„ „Ba ndow\ 4 ' � 1 board with /z dia. a) ° l bolts/lag screws/anchors as H o r r r "1 @ " On center N ,I N (see Table 5) _ i S PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE Figure 8. : r - o-Be. ��:� nt Figure 9. Prohibited Post-to-Beam Attachment Require i • nts �� Condition ) Ail am mom x or 4x or ell (2 2x beam (2)1/2"•ameter thru- I11111111111 bolts with washers ilra.riman 4/•-am must bearfuly on .x6 notchi�' eirtf 'III 6x6 min. Illik / otch post to accomodate beam RIM JOIST REQUIREMENTS Figure 10. Alternate Approved Post-to-Beam Attach a continuous rim joist to the ends of joists as Post Cap Attachment shown in Figure 11. Attach decking to the rim joist as shown in Figure 11. For more decking attachment Solid sawn or requirements, see DECKING REQUIREMENTS. `-- -`- ' - — _ multiply beam ill ui III ''\. O�`i 'il 0 8 `;` o 6x6 min. •.. i .;ll pos t — - 1 o V r- (Figure 11. Ri ' oist Connection Details joists secure decking to top of rim joist with 10d threaded nails or#10 x 3" minimum wood screws @ 6"o.c. • \kms • 44fr •-•Ii . ® attach rim joist to end of each joist with • (3) 10d threaded nails or(3)#10 x 3" 4 0 minimum wood screws rim joist PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 9 FOOTINGS lR403j See Figure 12 and Table 4 for footing size, footing Table 4. Footing Sizes' thickness, and post attachment options and requirements. Beam Joist Round Square All footings shall bear on solid ground and shall be Span, Span Footing Footing Footing placed at least 12 inches below the undisturbed ground LB L Diameter Dimension Thickness2 <10' 15" 13" 6" surface or below the frost line, whichever is deeper. 6' <14' 17" 15" 6" Contact the authority having jurisdiction to determine — the specified frost line. Bearing conditions shall be <18' 20" 18" 7" verified in the field by the building official prior to <10' 17" 15" 6" placement of concrete. Where the building official 8' <14' 20" 18" 8" determines that in-place soils with an allowable bearing <_18' 23" 21" 9" capacity of less than 1,500 psf are likely to be present at <10' 19" 17" 7" the site,the allowable bearing capacity shall be 10' <14' 22" 20" 9" determined by a soils investigation. DECK FOOTINGS <18' 25" 23" 10" CLOSER THAN 5'-0" TO AN EXISTING EXTERIOR <10' 21" 19" 8" HOUSE WALL MUST BEAR AT THE SAME 12' <14' 24" 22" 10" ELEVATION AS THE FOOTING OF THE EXISTING <18' 28" 26" 11" HOUSE FOIJNDATION. <10' 22" 20" 9" Do not construct footings over utility lines or 14' <14' 26" 24" 11" enclosed meters. Contact local utilities(call 811) <18' 30" 28" 12" before digging. <10' 24" 22" 9" Pre-manufactured post anchors shall be galvanized. See 16' <14' 28" 26" 12" MINIMUM REQUIREMENTS. <18' 32" 30" 13" <10' 25" 23" 10" 18' <14' 30" 28" 12" <18' 34" 32" 14" 1. Assumes 1,500 psf soil bearing capacity. 2. Assumes 2,500 psi compressive strength of concrete. Coordinate footing thickness with post base and anchor requirements. Figure 12. Typical Footing Options _.--- Cut ends of posts shall be posts must be -----j\i--_ — field treated with an approved centered on footing o preservative (such as copper grade naphthenate) III11 E =III—III a .0 • . ' footings must bear (� • H • c J on solid ground E a • ' • • • ° a a • • 4. t---" --'zi ' • frost depth 1 a • • ° • °• a per Table 4 i r., ,0..- pre-manufactured post base with post anchor jO -, c(2!/ 5pMi.), /F nd �Ss'ti.y . `2" -robes PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 11 /i Figure 14. Ges 1,al Attachment of Ledger Board to Band Joist or(( Rim Board remove siding at ledger \„\,`Nommin 4_...,00exterior sheathing I prior to installation existing stud wall--.► threshold carefully flashed and existing 2x band joist f caulked to prevent water intrusion or 1" minimum I continuous flashing EWP rim board extending past joist ll hanger 2"min. 1 1. deck joist 1-5/8"min. my 5" max. 1 . 2"min. 1/2"diameter lag 2x floor joist, � screws or wood I-joist, 1, —' through-bolts with or MPCWT • washers • • joist hanger • s existing ----•.-� • : ° foundation 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, f this area should be caulked •existing concrete °'I7�, deck joist or solid masonry i wall 4 °11,1741 1/2"diameter 10.111 < approved expansion, epoxy, or adhesive anchors with washers • ° • joist hanger 2x ledger board; must be greater than or equal to the size of the joist Figure 16. Attachment of Ledger Board to Foundation Wall (Hollow Masonry) embed anchors MAW per manufacturer to resist corrosion and recommendations decay, this area should —— be caulked existing hollow arITI- deck joist masonry wall ' M�.�; 1/2"diameter approved block cells filled— 111- Inn epoxy or adhesive with grout or II anchors with washers concrete at anchor locations 111,111111 joist hanger (new construction) ► 2x ledger board; must be greater 8"block wall than or equal to the size of the joist minimum 12 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE PROHIBITED LEDGER ATTACHMENTS deck shall be free-standing (see FREE-STANDING Attachments to exterior veneers (brick, masonry, stone) DECKS). and to cantilevered floor overhangs or bay windows are prohibited(see Figures 17 and 18). In such cases the Figure 17. No Attachment to or Through Figure 18. No Attachment to House Overhang Exterior Veneers (Brick, Masonry, Stone) ----Y_ _� _-u— <,li� deck 11. . joist '' _ -.0--brick veneer or overhang • masonry v �� chimney or bay window LEDGER BOARD FASTENERS nominal lumber band joist(1-1/2" actual) or EWP rim Only those fasteners noted below are permitted. LEAD board bearing on a sill plate or wall plate shall be ANCHORS ARE PROHIBITED. constructed with 1/4" lag screws or bolts with washers per Table 5 and Figure 19 (see MINIMUM '2 •10,'Deck ledger connection to band joist or rim board. REQUIREMENTS). The connection between a deck ledger and a 2-inch Table 5. Fastener Spacing for a Southern Pine, Douglas Fir-Larch, or Hem-Fir Deck Ledger and a 2-inch Nominal Solid-Sawn Spruce-Pine-Fir7'9 Band Joist or EWP Rim Board6 (Deck Live Load = 40 psf, Deck Dead Load = 10 psf)3'6 Rim Board 6'-0" 6'-1" 8'-1" 10'-1" 1T- ' 14'-1" 1 -1" Joist Span or and to to to t to 1o Band Joist less 8'-0" 10'-0" 1T-0" 1 -1 ' 16'-0" 8'-0" Connection Details • On-Center Spacing of Fasteners ' / /z"diameter lag screw with 1" EWP6 24" 18" 14" 12" 10 9" 8" 15132" maximum sheathing 1 1_1/8„ EWP6 28" 21 16" 14" 12" g" 1-%" Lumber's 30" 23" 18" 15" 13" % I, 10" 1/z" diameter bolt with 1" EWP6 24" 18" 14" 12" 10" • 8" 15/32" maximum sheathing 1-1/8" EWP6 28" 21" 16" 14" 12" 10" 9" 1-1/2" Lumber7'9 36" 36" 34" 29" 24" 21" 19" 1/2" diameter bolt with 1" EWP6 24" 18" 14" 12" 10" 9" 15/32" maximum sheathing 1 and 8" -1/ " EWP6 28" 21" 16" 14" 12" 10" 9" l/2" stacked washers '8 1-1/2" Lumber's 36" 36" 29" 24" 21" 18" 16" 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 1/2". 3 Ledgers shall be flashed or caulked to prevent water from contacting the house band joist (see Figures 14, 15, and 16). 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. 5 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 board, respectively. ' A minimum 1"x91/2" Douglas fir-larch laminated veneer lumber rim board shall be permitted in lieu of the 2" nominal band joist. B Wood structural panel sheathing, gypsum board sheathing, or foam sheathing not exceeding one inch thickness shall be permitted. The maximum distance between the face of the ledger board and the face of the band joist shall be one inch. 9 Fastener spacing also applies to southern pine, Douglas fir-larch, and hem-fir band joists. PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 13 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 to, to the bottom along the horizontal run of Figure( 19: Lel-r Board Fastener Spacing and Clearances s ble 5 (N, .-E stagger fasteners in 2 rows See Figure 14 for rim joist fastener spacing CD © © 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 OO © a © 7.5" min. for 2x12 spacing is reduced to that of lag screws to attach 2x8 2"min. lag screw, thru bolt, or ledgers to 2x8 band joists(1/2" ledger anchor with washer 3/4"min. stacked washers not permitted) Thru-Bolts Minimum spacing and embedment length shall be per Thru-bolts shall have a diameter of/2". Pilot holes for the manufacturer's recommendations.All anchors must thru-bolts shall be 1732"to 9/16" in diameter. Thru-bolts have washers. require washers at the bolt head and nut. Lag Screws Expansion and Adhesive Anchors Lag screws shall have a diameter of'A" (see MINIMUM Use approved expansion or adhesive anchors when REQUIREMENTS). Lag screws may be used only when attaching a ledger board to a concrete or solid masonry the field conditions conform to those shown in Figure wall as shown in Figure 15 or a hollow masonry wall 14. See Figure 20 for lag screw length and shank with a grouted cell as shown in Figure 16. Expansion requirements. All lag screws shall be installed with and adhesive anchor bolts shall have a diameter of'A". washers. Figure 20: Lag Screw Requirements lag screws must be hot- dipped galvanized or „a,� 11111 1��, stainless steel only 1 screw must penetrate 1-1/2”shank length must extend through beyond band board (no threads) existing band board a minimum of 1/2" 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 existing house. compatible lubricant as required to facilitate tightening. DO NOT DRILL A '/2"DIAMETER HOLE INTO THE Each lag screw shall be thoroughly tightened(snug but BAND BOARD. not over-tightened to avoid wood damage). 14 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE FREE-STANDING DECKS EXISTING HOUSE FOOTING IF LOCATED Decks which are free-standing do not utilize the exterior CLOSER THAN 5'-O" TO AN EXISTING HOUSE wall of the existing house to support vertical loads(see WALL(see Figure 2 and Figure 12).For houses with Figure 21); instead, an additional beam with posts is basements,a cylindrical footing(caisson)is provided at or within L/4 of the existing house. THE recommended to minimize required excavation at the basement wall. Beam size is determined by Table 3. ASSOCIATED DECK POST FOOTINGS SHALL BE PLACED AT THE SAME ELEVATION AS THE Figure 21. Free-Standing Deck rim joist —rim '-� �� joist `� 40111 joist overhang ` �i --6 existing house _, foundation wall "' / / beam,/ posts / deck footings must be at --joists same elevation as install diagonals existing house footing per Figure 22 DECK STABILITY ecks greater th eet above grade shall be provided withdiagonalbracing. r") onal Bracing Requirements --- ------ - - -provide blocking when joists do not align ------ ------ ------ ------ --- ------ - - with posts JJ1 / 2'/ • • beam4 beam2#47 _ E 2' 0 � "- - -joist at post .X 2x4, typical (1) 3/8" diameter / locations E`° thru-bolt with - washers, typical -©'. BRACING PARALLEL TO BEAM BRACING PERPENDICULAR TO BEAM PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 15 Diagonal Bracing: Provide diagonal bracing both concrete or masonry. DO NOT ATTACH TO BRICK parallel and perpendicular to the beam at each post as VENEERS. VERIFY THIS CONDITION IN THE shown in Figure 22. When parallel to the beam,the FIELD PRIOR TO UTILIZING THIS METHOD. bracing shall be bolted to the post at one end and beam Fasteners shall be 16" on center and staggered in 2 rows at the other. When perpendicular to the beam,the for free-standing decks. Flashing over the rim joist is bracing shall be bolted to the post at one end and a joist required and must be installed in accordance with the or blocking between joists at the other. When a joist flashing provisions in the LEDGER ATTACHMENT does not align with the bracing location,provide REQUIREMENTS. blocking between the adjacent joists. Decks attached to the house as shown in Figure 23A do not require Deck Supported by Ledger-Attachment to House: diagonal bracing perpendicular to the house. Diagonal Where supported by attachment to an exterior wall bracing parallel to the house may be omitted at the beam (Figures 14, 15, or 16), decks shall be positively adjacent to the house for a free-standing deck attached as anchored to the primary structure and designed for both shown in Figure 23. vertical and lateral loads as applicable [R502.2.2]. The lateral load connection required shall be permitted to be Free-standing Deck-Attachment to House: Attach in accordance with Figure 23A. Hold down tension the deck rim joist to the existing house exterior wall as devices shall be provided in not less than two locations shown in Figure 23 for a free-standing deck. The wall per deck, and each device shall have an allowable stress must be sheathed with minimum 3/8"wood structural design capacity of not less than 1,500 lb [R502.2.2.3]. panel sheathing. Use lag screws or thru-bolts when See the Commentary to this document for additional fastening to an existing band joist or wall stud;use information on applicability of this provision. n`i't= ors or epoxy anchors when fastening to ( gure 23. Ail achment of Free-Standing Deck to Figure 23A. Example of a Lateral Load Device House for ck Stability for a Deck Attached to a House with a Ledger exterior sheathing idremove siding at rim joist floor sheathing nailing at il min.thickness=3/6" iocatlonPriortohataMatton6'maximum on center to hold down or similar cormnuous flashing extend -- joist with hold down tension device existing wall stud,band i past rim joist fastenersjoist,or concrete or MM. MN= BM. MO masonry foundation wall �• :���111•2 ILI ■ LI! �=�►�.r�r fasteners Q 16"O.C. 1 u.n■�i,1—' staggered ��I�'I I/lfll/l� � li ifloor joist , deck joist rim joistbeam d post GUARD REQUIREMENTS 24. Other methods and materials may be used for guard All decks greater than 30" above grade are required to construction when approved by the authority having have a . and [R312.1] -one example is shown in Figure jurisdiction. Figure 24. Exa;pie Guard Detail 4x4 post,typical 6'-0-maximum spacing----a-- ,-2x2 baluster,typical DO NOT NOTCH 2x6 or 514 board / rail cap in2x4top and bottom; attach to guard post with*mnoI, (2)8d threaded nada or (28 wood screws a2-W oninside face -wow 1 (2)112"diameter thru-bolts and the shell not allow with(1$8 wood screw orsew*balusters at top (bottom washers the poss.of a 4" (2)ad diameter> a post-frame threaded malls with 0.136"nominal diameter 16 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE GUARD POST ATTACHMENTS joists shall be attached to the rim joist in accordance Deck guard posts shall be a minimum 4x4 (nominal) with Figure 26. Only hold down anchor models meeting with an adjusted bending design value not less than these minimum requirements shall be used. Hold down 1,100 psi. anchors shall have a minimum allowable tension load of 1,800 pounds for a 36" maximum rail height and be Guard posts for guards which run parallel to the deck installed in accordance with the manufacturer's joists shall be attached to the outside joist per Figure 25. instructions. Guard posts for guards that run perpendicular to the deck Figure 25. Guard Post to Outside Joist Example Fe ►M i see FIGURE 24 for guard *guard posts can be installed as guard posts may be :� component attachment shown in Figure 26 (between joists) located on either side requirements if blocking is installed as shown below of the outside joist within 12"of each side of the post -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. thru- , bolts and washers outside-joist . 1111111=11/ 2" min. 2-1/2" min. and 5" max. 11 2" min. � L guard post* outside-joist SECTION PLAN VIEW Figure 26. Guard Post to Rim Joist Example see FIGURE 24 for guard � hold-down anchor rl component attachment requirements joists guard post align guard �' guard post post at joist locations rim joist hold-down anchor �. \___ • rim joist �j�j� rim joist joist . . WIl7IM1 i minimum (2)1/2", • _ 2" min. hold-down anchor�� diameter thru- '�j1 2-1/2" min. and 5" max. bolts and washers 1111111114 • 2.' min. at joist location between joists SECTION PLAN VIEWS PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 17 STAIR REQUIREMENTS the stringer span(see provisions below). If the total Stairs, stair stringers, and stair guards shall meet the vertical height of a stairway exceeds 12'-0",then an requirements shown in Figure 27 through Figure 34 and intermediate landing shall be required. All intermediate Table 6 except where amended by the local jurisdiction. stair landings must be designed and constructed as a All stringers shall be a minimum of 2x12. Stair stringers free-standing deck using the details in this document. shall not span more than the dimensions shown in Figure Stairs shall be a minimum of 36" in width as shown in 28.If the stringer span exceeds these dimensions,then a Figure 33 [R311.7]. If only cut stringers are used,a 4x4 post may be provided to support the stringer and minimum of three are required. For stairs greater than shorten its span length. The 4x4 post shall be notched 36"in width,a combination of cut and solid stringers and bolted to the stringer with(2) 1/2" diameter through- can be used,but shall be placed at a maximum spacing bolts with washers per Figure 8. The post shall be of 18"on center(see Figure 29). The width of each centered on a 12"diameter or 10" square, 6"thick landing shall not be less than the width of the stairway footing. The footing shall be constructed as shown in served. Every landing shall have a minimum dimension Figure 34 and attached to the post as shown in Figure 12. of 36"measured in the direction of travel and no less An intermediate landing may also be provided to shorten than the width of the stairway served [R311.7]. Figure 27. Tread and Riser Detail Figure 28. Stair Stringer Requirements riser may be open,but \ shall not allow the \ passage of a 4"diameter sphere 10"minimum \ tread width \y 73/4"maximum .' M Mon K s lid _I not*wale from risers:lx matenal,minimum ono alllotllar by111111. Imore than 3f8"sommi '� treads:see Figure 29 and Table 6 3/4"-1-1/4"nosing;nosing shall not deviate from one LI max.span=T-0"for southern pine ------— another by more than 3/8" max.span=6'-0"for other Table 1 species CUT STRINGER J max.span=16'-6"for southern pine max.span=13'-3"for other Table 1 species SOLID STRINGER Figure 29. Tread Connection Requirements Attachment per tread at each stringer or ledger: Table 6. Minimum Tread Size for Cut and Solid 2x_or 5/4 treads-(2)8d threaded nails or(2)#8 screws z2-1/2"long 1 13x_treads-(2)16d threaded nails or(2)#8 screws a3-1/2"long Stringers Cut Solid stringer Species Stringer Stringer treads:2x_or 5/4 board 1 treads:see Table 6 / Southern Pine 2x4 or 5/4 2x6 r Douglas Fir Larch, 18"max " 18"max " 36"max `�II Hem-Fir, SPF2 2x4 or 5/4 2x8 or 3x4 illipriA '`�"'a- �e Redwood, Western Cedars, 2x4 ledgers,each side,full depth of Ponderosa Pine3, Red Pine3 2x4 or 5/4 2x10 or 3x4 tread;attach with(4)10 threaded 1.Assumes 300 lb concentrated load,L/288 deflection limit,No. 2 grade,and wet service conditions. stringers nails or (4)#8 wood screws a3"long 2. Incising assumed for refractory species including Douglas fir- CUT STRINGER SOLID STRINGER larch,hem-fir,and spruce-pine-fir. 3. Design values based on northern species with no incising assumed. 18 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE Figure 30. Stair Guard Requirements Figure 31. air Stringer Attachment Detail 6'-O"maximumnm joist or between posts outside joist stair guard is required for stairs with a total rise of II=IM IIINI 30"or more; see GUARD ;,/ 111IIMINIIMN 1 REQUIREMENTS for �/ more information / / • ' sloped joist hanger, minimum download capacity of 625 lbs; 1--'-l'-..- ---10 c see JOIST HANGERS for more requirements stair guard height: 34"min. measured .:....>----"----------"• o ATTACHMENT WITH HANGERS I from nosing of stepJ �� 1 O Openings for required guards on the Triangular opening shall sides of stair treads shall not allow not permit the passage a sphere 4-3/8"to pass through. of a 6"diameter sphere. STAIR HANDRAIL REQUIREMENTS than 6-1/4". Type II rails with a perimeter greater than All stairs with 4 or more risers shall have a handrail on 6-1/4" shall provide a graspable finger recess area on both at least one side(see Figure 32A) [R311.7.7]. The sides of the profile [R311.7.7.3]. All shapes shall have a handrail height measured vertically from the sloped smooth surface with no sharp corners. Handrails shall plane adjoining the tread nosing shall be not less than 34 run continuously from a point directly over the lowest inches and not more than 38 inches(see Figure 30) riser to a point directly over the highest riser and shall [R311.7.7.1]. Handrails shall be graspable and shall be return to the guard at each end(see Figure 33). Handrails composed of decay-resistant and/or corrosion resistant may be interrupted by guard posts at a turn in the stair material. Handrails shall be Type I, Type II, or provide [R311.7.7.2]. equivalent graspability(see Figure 32B). Type I shall have a perimeter dimension of at least 4" and not greater Figure 32B. Handrail Grip Size Figure 32A. Handrail Mounting Examples ,, ," 1a 2a Fasten handrails per manufacturer recommendations . a t" 1,1'"min. 1y"min.--'I I t 1a 2 I 2a'max. M .x c ptE t111o min.0 X L 5« �m m is E . min. ��`E ak blocking 11"min. —� I_ 1 "min. 1 NONCIRCULAR CIRCULAR RECESSED MN . I• [R311.7.7.3 Type I] [R311.7.7.3 Type II] 34"-38"to nosing Perimeter:4"-61" Perimeter: t" VIguard /I ' of stairs.typical < >6awall corrosion-resistant handrail hardware post MOUNTED TO GUARD MOUNTED TO WALL 1 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE 19 STAIR FOOTING REQUIREMENTS 1R4031 REQUIREMENTS),posts may terminate below the bottom tread elevation. Bolts are only required if a guard Where the stairway meets grade,attach the stringers to the stair guard posts as shown in Figure 34. Posts shall post is required. bear on footings.All footings shall bear on solid ground STAIR LIGHTING REQUIREMENTS 1R303.61 and shall be placed at least 12 inches below the Stairways shall have a light source located at the top undisturbed ground surface or below the frost line, landing such that all stairs and landings are illuminated. whichever is deeper(see Figure 34). Stringers shall bear The light switch shall be operated from inside the house. on a 2x4 bearing block attached to the post as shown. Stringers shall not bear on new or existing concrete pads However, motion detected or timed switches are or patios that are not founded below this depth. When acceptable. ards are not required(see GUARD Figure 33. MI ellaneous Stair Requirements Figure 34. St Footing Detail 4 - - -- - - cut p om tread (2)W diameter thru-bolts •m11)g1 elevation when no stair with washers required only t r c guard is required if guard is required;otherwise - -- c Co - - - use(2)#8 wood screws 23-%" _ , long or(2) 16d threaded nails handrail l no • r Attach 2x4 bearing block using stair stringer • ,/ (8)#88 wood screws z3-Y:"long handrail shall or(8) 164 threaded nails return at each li r end 4x4 "9 E post El e ______111______ .E 36"min. stair width MEI6" :C2 -+ RN- _ minimum 1 10"x10"square osection `� frost depth 1 I I I 1 I I I 12"dia.footing I r-1-1-, r-1- _i 1 I i FRAMING AT CHIMNEY OR BAY WINDOW 1B. Joist hangers shall each have a minimum download All members at a chimney or bay window shall be capacity in accordance with Table 7. Bolts or lag screws framed in accordance with Figure 35.Headers may span used to attach the hanger to the ledger shall fully extend a maximum of 6'-0". When a chimney or bay window is through the ledger into the 2-inch nominal lumber band wider than 6'-0", one or more 6x6 posts may be added to joist(1-Y2" actual)or EWP rim board. Otherwise a reduce header spans to less than 6'-0". In such cases, the freestanding deck is required. post footing must meet the requirements in the FOOTINGS section. Headers with a span length greater than 6'-0"require a plan submission. Headers shall be Table 7. Trimmer Joist Hanger Download Capacity located no more than 3'-0" from the end of the trimmer joist. Joist Size Minimum Ca•acit , lbs Triple trimmer joists are required on each side of the 2x8 1050 header if joist spacing is 12" or 16" o.c. or if the trimmer joist span exceeds 8'-6"; otherwise, double trimmer joists 2x10 1380 are permitted. Trimmer joists may bear on the beam and 2x12 1500 extend past the beam centerline up to LJ/4 as shown in Figures 1A and 2, or the trimmer joist may attach to the side of the beam with joist hangers as shown in Figure 20 PRESCRIPTIVE RESIDENTIAL WOOD DECK CONSTRUCTION GUIDE Figure 35: Detail for Framing Around a Chimney or Bay Window a = 3'-0" maximum triple joist 6'-0" maximum - hanger, typical l'al dal decking may (Table 7) / extend 6" maximum / /; � j(//1///// / chimney or / chimney j bay window / or " 04• Bolts or lag // boledardr � ,. •♦♦ ® screws shall fully extend into band joist or rim board triple trimmer / �dourle joie if- \ AA.� hanger, double header (2)Wdiameter thru bolt joist each side* 9 typical or lag screws at ledger' Trimmer joist may be double if joists are spacedSee Figure 19 for fastener spacing, 24"o.c. or if trimmer length is 8.-6"or less I edge, and end distances I PLAN VIEW SECTION -\ American ,o,4-- ,.,„1.'%r_.'. .' k.°FF4I4 INIIIIII&ia „ ■■ mWood : onnimmillig `•$MISE INTERNATIONAL (!j) 1742 CODE COUNCIL U Council I IRGINA-N Traditional and Engineered Wood Products 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 Forest & Paper Association 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 American Forest& Paper Association, Inc. 01-10