Laserfiche WebLink
i <br /> • <br /> FLOORS <br /> TABLE R507.9.1.3(1) <br /> DECK LEDGER CONNECTION TO BAND JOISTa,b <br /> (Deck Ilve load=40 psf,deck dead load=10 psf,snow load 40 psf) • <br /> JOIST SPAN <br /> CONNECTION DETAILS 6'and less 6'1"to 8' 8'l"to 10' 10'1"to 12' 12'1"to 14' 14'1"to 16' 16'1"to 18' <br /> On-center spacing of fasteners <br /> 1/2-inch diameter lag screw with'/2 inch 30 23 18 15 13 11 10 <br /> maximum sheathing <br /> 1/2-inch diameter bolt with'/3-inch maximum 36 36 34 29 24 21 19 <br /> sheathings <br /> '/Z inch diameter bolt with 1-inch maximum 36 36 29 24 21 18 16 <br /> sheathings <br /> For SI: 1 inch=25.4 mm,1 foot=304.8 mm,1 pound per square foot=0.0479 kPa. <br /> a. Ledgers shall be flashed in accordance with Section R703.4 to prevent water from contacting the house band joist. <br /> b. Snow load shall not be assumed to act concurrently with live load. <br /> c. The tip of the lag screw shall fully extend beyond the inside face of the band joist. <br /> d. Sheathing shall be wood structural panel or solid sawn lumber. <br /> e, Sheathing shall be permitted to be wood structural panel,gypsum board,fiberboard,lumber or foam sheathing.Up to'/2 inch thickness of stacked washers <br /> shall be permitted to substitute for up to 1/2 inch of allowable sheathing thickness where combined with wood structural panel or lumber sheathing. <br /> TABLE R507.9.1.3(2) <br /> PLACEMENT OF LAG SCREWS AND BOLTS IN DECK LEDGERS AND BAND JOISTS <br /> MINIMUM END AND EDGE DISTANCES AND SPACING BETWEEN ROWS <br /> TOP EDGE BOTTOM EDGE ENDS ROW SPACING <br /> Ledgers 2 inches" 3/4 inch 2 inches" 15/8 inches' <br /> Band Joists 3/4 inch 2 inches 2 inches" 15/8 inches' <br /> For SI: 1 inch=25.4 mm. <br /> a. Lag screws or bolts shall be staggered from the top to the bottom along the horizontal run of the deck ledger in accordance with Figure R507.9.1.3(1). <br /> b. Maximum 5 inches. _ • <br /> c. For engineered rim joists,the manufacturer's recommendations shall govern. <br /> d.The minimum distance from bottom row of lag screws or bolts to the top edge of the ledger shall be in accordance with Figure R507.9.1.3(1). <br /> z STAGGER FASTENERS <br /> 2 IN 2 ROWS <br /> 0 ® 0 * 5.5"MIN.FOR 2 X 8* *DISTANCE SHALL BE PERMITTED TO <br /> 5"MAXt 6.5"MIN.FOR 2 X 10 BE REDUCED TO 4.5"IF LAG SCREWS <br /> ® ® ® 7.5"MIN.FOR 2 X 12 ARE USED OR BOLT SPACING IS <br /> REDUCED TO THAT OF LAG SCREWS <br /> TO ATTACH 2 X 8 LEDGERS TO 2 X 8 <br /> At <br /> 2"MIN. 0.1 BAND JOISTS. <br /> LEDGER LAG SCREW OR BOLT 3/4"MIN. <br /> For SI: 1 inch=25.4 mm. <br /> • <br /> FIGURE R507.9.1.3(1) <br /> PLACEMENT OF LAG SCREWS AND BOLTS IN LEDGERS <br /> 170 2018 INTERNATIONAL RESIDENTIAL CODES <br />