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CITY OF SANTA ANA <br />Planning and Building Agency <br />ER SPANS: <br />Roofing Material: Composite Shingle <br />Pitch = <br />4.00 <br />:12 <br />DL= <br />16.0 <br />psf <br />LL= <br />20.0 <br />psf <br />Spacing = <br />16 <br />in. <br />0/L= <br />240 <br />Aaaroved <br />FMPERMff IS UANCE <br />DATE: <br />JOB No: <br />Master ID: <br />Date: <br />Size <br />d (in) <br />A (in2)S <br />(in3) <br />1 (in4) <br />CF <br />Cr <br />CD <br />2 X 6 <br />5.50 <br />8.25 <br />7.56 <br />20.80 <br />1.30 <br />1.15 <br />1.25 <br />2 X 8 <br />7.25 <br />10.88 <br />13.14 <br />47.64 <br />1.20 <br />1.15 <br />1.25 <br />2 X 10 <br />9.25 <br />13.88 <br />21.39 <br />98.93 <br />1.10 <br />1.15 <br />1.25 <br />2 X 12 <br />11.25 <br />16.88 <br />31.64 <br />177.98 <br />1.00 <br />1.15 <br />1.25 <br />GRADE: DOUGLAS FIR #2 <br />Fb = 900 psi Fv = 180 psi E = 1,600,000 psi <br />Size <br />Fib <br />F v <br />LBending <br />LShear <br />LDeflect <br />LMax <br />2 X 6 <br />1,682 <br />225 <br />13.1 <br />50.4 <br />11.5 <br />11.5 <br />2 X 8 <br />1,553 <br />225 <br />16.6 <br />66.4 <br />15.1 <br />15.1 <br />2 X 10 <br />1,423 <br />225 <br />20.3 <br />84.7 <br />19.3 <br />19.3 <br />2 X 12 <br />1,294 <br />1 225 <br />23.6 <br />103.0 <br />23.4 <br />23.4 <br />> 21'-3" <br />(O. K.) <br />GRADE: DOUGLAS FIR #1 <br />Fb = 1,000 psi F = 180 psi E = 1,700,000 psi <br />Size <br />Fib <br />F v <br />LBending <br />LShear <br />LDeflect <br />LMax <br />2 X 6 <br />1,869 <br />225 <br />13.8 <br />50.4 <br />11.7 <br />11.7 <br />2 X 8 <br />1,725 <br />225 <br />17.5 <br />66.4 <br />15.4 <br />15.4 <br />2 X 10 <br />1,581 <br />225 <br />21 A <br />84.7 <br />19.7 <br />19.7 <br />2 X 12 <br />1,438 <br />225 <br />24.8 <br />103.0 <br />23.9 <br />23.9 <br />GRADE: DOUGLAS FIR #1& BETTER <br />Fb = 1,200 psi F, = 180 psi E = 1,800,000 psi <br />Size <br />Fib <br />F'v <br />LBending <br />LShear <br />LDeflect <br />LMax <br />2 X 6 <br />2,243 <br />225 <br />15.2 <br />50.4 <br />11.9 <br />11.9 <br />2 X 8 <br />2,070 <br />225 <br />19.2 <br />66.4 <br />15.7 <br />15.7 <br />2 X 10 <br />1,898 <br />225 <br />23.5 <br />84.7 <br />20.0 <br />20.0 <br />2 X 12 <br />1,725 <br />225 <br />27.2 <br />103.0 <br />24.4 <br />24.4 <br />