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Ledger-to-Stud Applications <br /> Strong-Drive SDWS Timber screws may be used to attach a ledger to the narrow face of <br /> nominal 2x lumber studs according to the following table.Values are based on assembly tests <br /> with analysis performed in accordance with ICC-ES AC233. <br /> Allowable Shear Values for Ledger Attachment to Studs <br /> IF <br /> - <br /> lI �Il <br /> i <br /> 2x6 I 2 630 565 785 <br /> SOWS22400DB 4 r <br /> ! i 890 ; 10 <br /> -- <br /> 2x10 4 1,040 1.040 — <br /> ................... ................._._....................................... <br /> limited _.._.:..................._...__......_........:................._........._....,........... <br /> 1.Allowable loads shall be d to parallel-to-drain-loaded 5.Screws may be installed with an intermediate layar of wood <br /> lumber studs(minimum 2'nominall.Wood ledgers shag be structural panel between the ledger and stud provided the <br /> loaded perpendicular to gam• wood stnictural panel is fastened to the stud per code and <br /> 2.Allowable loads are based on DF,SPF/HF and SP wood the minimum screw penetration of 2 h'into the main member <br /> members having a minimum specific gravity of 0.50.0.42 and (excluding the wood structural panel)is met.Longer lengths of <br /> 0.55,respectively.Where the ledgers and studs have different the screw series may be used. <br /> Specific gravities,the lower valises shall be used. 6.For LRFD values,the reference connection design values shag <br /> 3.Allowable Loads are shown at the woad Toad duration factor be adjusted in accordance with the NDS.section 11,3. <br /> of CD=1.00.Loads may be increased for bad duration as 7.For 2x10 SP ledgers,use the number of screws and allowable <br /> permitted by the building code up to a Co=1.60. loads of the 2x8 SP ledger. <br /> All adjustment factors shag be applied per the 2018 National 8.For 2x8 ledgers with two screws,use 2x6 values.For 2x10 <br /> Design Specification(NDS).For in-service moisture content ledgers with three screws,use M values.Spacings and edge <br /> greater than 19%,use CM=0.70. distances shown in the figure are minimum dimensions. <br /> 4.Fasteners shag be centered in the stud and spaced as shown 9,For loads in the opposite direction from that shown in the <br /> in the figure.The stud minimum end distance is 6'when figure,use the table values multiplied by.0.50 for two-screw <br /> loaded toward the and and 21h'when loaded away from the connections,0.67 for three-screw connections,and 0.75 for <br /> end.The ledger end distance is 6'for full values.For ledger four-screw connections. <br /> end distances between 2'and 6'use 50go of the table bads. <br /> For end distances between 2'and 4',predrill using a§V bit <br /> for SDWS. <br /> 2x shad 2x shid 2x stud <br /> 2x6ledger 24 ledger 2.10ledger <br /> t <br /> i t v <br /> S y4•. <br /> +l P7, E <br /> L o <br /> i <br /> j 2'/s" 2s/c6" <br /> 9/t6 r <br /> L9/i6, 2%" <br /> Load 77, 77direction <br /> Load <br /> C <br /> directon LL <br /> 3 <br /> Load u <br /> direction <br /> 6 <br />