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GIRT CHECK 420911 <br /> Based on actual requirements <br /> (Treat as uniformally loaded simple beam) <br /> Moment wl^2/8 <br /> Deflection 5wI^4/384EI <br /> Select species <br /> Species/Grade WWPA Douglas-Fir-Larch No. 2 <br /> Size 2x6 <br /> Fb 900 psi (Normal) <br /> Cf 1.3 Size Factor <br /> Cr 1.15 Repetitive use factor <br /> Fb' = Fb*Cf* Cr* Cd <br /> Fb' 1345.5 psi (Normal) Cd = 1 <br /> 1547 psi (Snow) Cd = 1.15 <br /> 2153 psi (Wind) Cd = 1.6 <br /> E 1600000 psi <br /> I 20.80 IN4 <br /> S 7.56 IN3 <br /> Velocity Pressure 16.38 <br /> Ce 1.142 0 <br /> 1 <br /> Cq 1.15 <br /> Input Span 12.00 ft <br /> Override Span 0.00 ft <br /> 144 in <br /> Spacing 2 ft <br /> Wind <br /> w 43.15895125 #/ft <br /> 3.596579271 #/in <br /> Moment (w1^2/8) <br /> 0.125 <br /> 9322.333471 12.11903351 <br /> f 1233.112893 < 2153 OK <br /> Deflection (5wl"4/384E1) <br /> 0.605055297 <br /> L/240 0.6 <br /> L/180 0.8 <br /> 12 <br />