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19011 Wood-Sno Road NB, State 100 <br />BTLWoodinville, WA 98072-4436 <br />Phone:425-814-8448, <br />ENGINEERING Fax: 425-821-2120 <br />Stud Wall Design <br />Based on 2018 NDS Combined axial and bending formula: <br />[f./FJ2 + fb/Fb'11-(f,_/F.E)1 < 1 in which: F,E = 0.822(Emin')/(2e/d)2 <br />Wall: Interior Walls <br />No Fire Rating r <br />2A qV <br />SPF Stud IV <br />Wall Height: <br />Desired Stud Spacing: <br />Design Axial Dead Load: <br />Design Axial Live Load: <br />Design Axial Snow Load: <br />Design Lateral Pressure (0.6W): <br />Deflection Criteria: U <br />STUD CHECK <br />6e/d <br />< 50 <br />OK <br />D+0.6W (CD = 1.60) <br />[fe/Fo']2 + fb/Fb'11-(ft/FCE)1 = <br />0.41 <br />< 1 <br />OK <br />ft/FC£2 + (fb/FbE)L = <br />0.00 <br />< 1 <br />OK <br />D+0.75L+0.75(0.6W)+0.75S (CD = 1.60) <br />[f./F.']2 + = <br />0.99 <br />< 1 <br />OK <br />/fb/Fb'[1-(f,/F�£)I <br />fe'FCE2 + (fb/FbE)' = <br />0.00 <br />< 1 <br />OK <br />D+0.75L+0.75S (Co = 1.15) <br />fc/F� = <br />0.69 <br />< 1 <br />OK <br />D+L (CD = 1.0) <br />fc/Fc' = 0.86 < 1 OK <br />Deflection (No Increase for Load Duration): <br />Defl: U 180 = 0.60 0.23 < 0.60 OK <br />oc <br />PLATE CRUSHING CHECK' <br />Checks Crushing for Stud Spacing` <br />No Stress Increase for Load Duration <br />Hem Fir Plates: f./F, = 0.46 < 1 <br />OK <br />Douglas Fir Plates: fc/F, = 0.30 < 1 <br />OK <br />' Plate must also be checked for bending. <br />2 Check on crushing only applies to stud spacing. Joists above <br />must also be checked for crushing effect on plate. <br />Also, no stress increase is allowed due to load duration. <br />9 ft <br />24 in oc <br />203 plf <br />540 plf <br />0 plf <br />5 psf <br />ISO <br />Date: 1 /27/2021 <br />Page: M 1.3 <br />