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use: <br />Max Span: 3 feet <br />Load from Rafter <br />V=451.6 lbs <br />w=338.7 lb/ft <br />wl2 wl <br />8 2 <br />M=372x 32 lb-ft V = 508.1 lbs <br />8 <br />M=381.0 lb-ft <br />AWC Fb=1350 psi DF-1 <br />Sreqd=M = 314x12 = 3.39 <br />Fb 1350 <br />try: 4 x4 s =bd2 = 7.15 in3 <br />6 <br />S=7.2 in3 > 2.91 ok <br />use: 4 x 4 DF-1 header <br />Max Span: 5 feet <br />Load from Rafter <br />V=451.6 lbs <br />w=338.7 <br />wl2 wl <br />8 2 <br />M=280 x 52 lb-ft V = 846.8 lbs <br />8 <br />M=1058.5 lb-ft <br />Header Design (≤3 ft): <br />M = V = <br />Header Design (5 ft): <br />M = V = <br />TJI 110 11 7/8" depth at <br />16"O.C. <br />2016_CALCULATIONS