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Simpson • • • Systems Technical Guide � <br /> Deck Construction — Ledgers <br /> Strong-Drive <br /> SDS, SDWS and SDWH HDG Sawn Lumber <br /> Deck Ledger to Band Joist Applications (cont.) <br /> Allowable Shear Loads for Attachment of Lumber Deck Ledger to <br /> Band Joist (cont.) <br /> AllowableNominal Screw Model Band Joist Material and <br /> Fastener Ledger Length No. Minimum Size ShearLoad <br /> ' 1"OSB OR 1"LVL 160 <br /> 11/a"OSB 225 <br /> 2x 4 SDWS2740OSS <br /> • 15/16"LVL OR 1'/4'LSL 225 <br /> • Strong Drive 2x Nominal Sawn Lumber 225 <br /> TIMBER SS <br /> Screw 1"OSB OR 1"LVL 190 <br /> • 2-2x 5 SDWS2750OSS 1 W,OSB 190 <br /> 15/%"LVL OR 1'/4'LSL 190 <br /> • 2x Nominal Sawn Lumber 190 <br /> 1"OSB OR 1"LVL 280 <br /> 1'/a"OSB 280 <br /> 2x 4 SDWH2740OG <br /> 15/16"LVL OR 11/4"LSL 280 <br /> Strong Drive SDWH 2x Nominal Sawn Lumber 280 <br /> TIMBER-HEX HDG Screw 1"OSB OR 1"LVL 315 <br /> 1 Ye"OSB 315 <br /> 2-2x 6 SDWH2760OG <br /> 15/16"LVL OR 1'/4"LSL 315 <br /> 2x Nominal Sawn Lumber 315 <br /> 1.Specific gravity of the solid sawn band joists and ledgers shall be typical of species combinations with 0.42 s SG s 0.55. <br /> 2.Multiple ledger plies shall be fastened together per code independent of the SDS,SDWS or SDWH fasteners listed in the table. <br /> 3.Allowable loads are shown at the wood load duration factor of Co=1.0.Loads may be increased for load duration by the building <br /> code up to a CD=1.6, <br /> T <br /> 4.Structural sheathing between the ledger and band joist shall be a maximum of 1/2"thick and fastened per code. <br /> 5.See Screw Spacing Detail on the following page for spacing requirements. o <br /> 6.End screws shall be located near the bottom of the ledger.For end distances between 2"and 6",use 50%of the load and 50% <br /> of the standard spacing between the end screw and the adjacent screw.For end distances between 2"and 4",predrill using a'/k" F7 <br /> drill bit for SDWH27SS fasteners,a'/16"drill bit for the SDWH27G and SDWS27SS fasteners,a She"drill bit for SDS,SDWS22DB, c <br /> and SDWHI9SS fasteners,and a%"drill bit for SDWHI9DB. 2 <br /> 7.Visit strongtie.com/drawings and search for SD1-L for additional ledger fastening detail sheets and load tables in DWG,PDF o <br /> or DXF format. ti <br /> a <br /> E <br /> in <br /> M <br /> N <br /> O <br /> N <br /> a <br /> U <br /> co <br /> co <br /> N <br /> O <br /> N <br /> Li <br /> U <br /> 168 <br />