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Uniformly Loaded Simple Span Beam <br />Revised: 03/02/93 <br /> <br /> 3 ~ Select <br />LUMBER <ALT>-<C> To Select Lumber <br /> <br />Span : 15 ft. <br />Trib. : 2 ft. <br /> <br />1.15 Load Duration Factor <br /> <br /> A = 13.88 in.^2 <br />b : 1.5 in. S = 21.39 in.^3 <br />d : 9.25 in. I = 98.93 in.^4 <br /> <br />DL : 10 psf w = 152 #/ft. <br />LL : 66 psf W = 2280 pounds <br /> <br />No. 2 : Douglas Fir - 2" to 4" thick; 5" and wider <br /> <br />fb : <br />fy : <br />L/xxx : <br />Defl. : <br />min. brg. length: <br /> <br />2,398 <- try d · 11.9 mi <br /> 123 <- try d · 10.4 <br /> 175 <-- !!! ~ > L/180 <br /> 1.03 in. !!! <br /> 1.06 in. <br /> <br />1,438 psi : Fb <br /> 109 psi : Fy <br /> <br />1,700 ksi : E <br /> 719 psi : F~ <br /> <br /> <br />