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McPherson Engineering Battery/Stud Wall Check By: T.C. <br />ATTACHMENT TO WOOD WALL: <br />D 1 <br />4 indiam. of screw Nolags 4number of lags <br />Fp <br />Nolags <br />23lbwithdrawl force of 4 lag bolts <br />W 258 lb <br />inpounds per inch of thread penetraƟon (Table 12.2A NDS) <br />p 1.5inthr'd length of screw <br />reduce lag shear capacity <br />by for embed. depthZll150lbp <br />D 6Fa W p387 lb <br />Fa Nolags <br />Fp <br />16.8> 1.0 Zll <br />p <br />8 DNolags <br />Wp <br />1.5> 1.0 <br /> USE (4) 1/4" LAG BOLTS WITH 1.5" MIN. PENETRATION TO (E) STUDS, <br /> combined withdrawal and shear loading condiƟon is OK by inspecƟon <br />UNLOADED EDGE DISTANCE: <br />Lagdiam <br />1 <br />4 indiam. of screw <br />Dedge 1.5 LagdiamDedge 0.4 inRequired edge distance PER NDS 2018 TABLE 12.5.1E <br />2 DedgeLagdiam1 inTotal width required <br />Unloaded edge condiƟon based on drywall, plaster, or plywood <br />walls uƟlized for stabilizing weak axis bending on studs <br /> USE 2x STUD MINIMUM <br />STUD CONNECTION @ TOP/BOTTOM PLATE: <br />Z 141lbNDS Table 11-N, for 1in Side Member PenetraƟon w/ 16d Common Toe-Nails <br />Ctn 0.83Toe-Nail factor (NDS 11.5.4)Z' Z CtnZ' 117 lb <br />Nonails 2Typical number of nails used for stud to top/boƩom plate <br />Za Z' NonailsZa 234.1 lbShear capacity for (2) 16d common toenails <br />Rstud 16lbReacƟon per enercalc stud check <br />Rstud <br />Za <br />0.07< 1.0 <br />12/06/2023 ©McPherson Engineering <br />2 of 4 <br />2044 S Orange Ave - <br />101117921 & 201818526/13/2024