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FLOORS <br />TABLE R502.2.2.1 <br />FASTENER SPACING FOR A SOU7HERN PINE OR HEM-FIR DECK LEDGER <br />AMD A 2-INCFi NOMIN,4L SOLID-SAWN SPRUCE-PINE-FIR BAND JOIST°,f,9 <br />(Deck live load = 40 psf, deck dead load = 50 psf) <br />JOIST SPAN 6' and less 6'1"to 8' 8'1" to 10' 10'1"to 12' 12'1"to 14' 14'1"to 16' 16'1" to 18' <br />Connection details On-center spacing of fastenersa, e <br />�/z inch diameter ]ag screw with is/32 inch 30 23 18 15 13 11 10 <br />inaximum sheathing° <br />i/z inch diameter bolt witl� 15/32 inch inaximum 36 36 34 29 24 21 19 <br />sheathing <br />'/z inch diameter bolt with �s/3, inch maximuin 36 36 29 24 21 18 16 <br />sheafliiug and �/Z incli stackecl washersb, n <br />I'or SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm. 1 po�md per square foot = 0.0479kPa. <br />a. The tip of the l�g screw shall fully extend beyond the inside face of the band joist. <br />b. The maximum gap between tl�e face of the ledger board and face of the wall sheathing shall be �/z'. <br />c. Ledgers sha11 be flashed to prevent water fi'om contacting the house ba�d joist. <br />d. La� screws and bolts shall be st�aggered i�� accordance with Section R502.2.211. <br />e. Deck ledger shall be miniuium 2 x 8 pressure-preservative-treated No.2 grade lumber, or other approved materials as established by st�ndlyd engineerin� practice. <br />f. When solid-sa�vn pressure-preservative-treated deck ledgers are attacl�ed to a minimuni 1 inch thick engineered wood product (structural composite ]umber, lami- <br />nated veneer lumber or wood structural panel band joist), the ledger attacl�ment sl�all be designed i�� accordance with accepted etigineering practice. <br />g. A minimum 1 x 9�/z Douglas Fir laminated veneer lumber rimboud sha11 be pennitted in lieu of tlie 2-inch nominal baod joist. <br />h. Wood structural panel sl�eathing, gypsum board sheatlting orfoam sheatl�ing not exceeding 1 incl� in thickness shall be pennitted. The maximum distai�ce Uetween <br />the face of the ledger board and the face of the band joist shall be 1 inch. <br />Por SI: 1 inch = 25.4 m�n. <br />FIGURE 502.2.2.3 <br />DECK ATTACHMENT FOR LATERAL LOADS <br />R502.3 Allowable joist spans. Spans for floor joists shall be in attics that are accessed by means of a fixed stairway in <br />accordance with Tables R502.31(1) and R502.3.1(2). For accordance with Section R311.7 provided that the design <br />other grades aud species ai�d for other loading conditions, refer live load does not exceed 30 pounds l�er square foot (1.44 <br />to the AF&PA Span Tables for Joists and Rafters. kPa) and ti�e design dead load does not exceed 20 pounds <br />per squ<ire foot (0.96 kPa). The allowable span of ceiling <br />IZ502.3.1 Sleeping areas and attic joists. Table joists tliat support attics used for limited storage or no stor- <br />R502.3.1(1) shall be used to determine Che maximuin allow- �ge shall be detein�ined in accordance with Section R802.4. <br />able span of floor joists that supporC sleeping areas and <br />2009 INTERNATIONAL RESIDENTIAL CODE� 113 <br />