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Beam/ Top Chord Check Lumber: <br />Moment Demand <br /># of Attachment per Rafter N A = Span : Orientation <br />Lenght (ft) : <br />Dead Load Roof Material: Q D = psf <br />Live Load QLr = psf <br />Wind Load p = psf <br />Snow Load QS = psf <br />Rafter Spacing s = in <br />Wind Load, Portrait Portrait UL = <br />Wind Load, Landscape Landscape U W = <br />Linear Dead Load wd = plf <br />Live Load wLr = plf Start ft Start ft <br />End ft End ft <br />Snow Load ws = plf Start ft Start ft <br />End ft End ft <br />Ma, Moment <br />D lb-ft <br />D+Lr lb-ft <br />D+S lb-ft <br />0.6D+0.6W lb-ft <br />D+0.45W+0.75Lr lb-ft <br />D+0.45W+0.75S lb-ft <br />Moment Capacity Framing Member Size Lumber Grade : DF-L No. 1 <br />C M = 1 Ct = 1 Cr= CF = fb = psi Cfu =C i = <br />Breadth b = in <br />Depth d = in <br />Section Modulus Sx = bd 2 / 6 = in3 <br />Bending Stress Capacity Fb = CM * C t * Cr * C F * fb = psi Table 4.3.1 NDS 2015 <br />Deflection Limit E = ksi I = in4 <br />Transient Deflection in <br />Transient Deflection Allowed > [OKAY] <br />Total Deflection in <br />Total Deflection Allowed > [OKAY] <br />-40.93 <br />DF-L No. 1 <br />4 j lj (ft) pd,j  (lbs) pw,j  (lbs) ps,j  (lbs) <br />Portrait <br />1 3.7 51.9 -707 0.0 <br />8.0 51.9 -707 <br />-707 0.0 <br />4 13.8 51.9 -707 0.0 <br />0.0 <br />8.00 8.00 0.00 0.00 1.00 <br />Portrait <br />3 9.5 51.9 <br />10.00 <br />1 2 3 4 Eave <br />2 <br />0.0 <br />0.0 0.0 0.0 <br />0.0 <br />0 0.0 0.0 0.0 0.0 <br />0 0.0 0.0 0.0 <br />0.0 <br />0 0.0 0.0 0 0.0 <br />Portrait <br />0 0.0 0.0 0 <br />0.0 <br />20 <br />40 <br />0.0 0.0 0.0 0.0 <br />0 0.0 <br />Portrait <br />0 <br />0.0 30.679 -419 0 <br />0 <br />0.0 <br />0 <br />3 <br />0 <br />0 <br />0.0 <br />Portrait <br />3 <br />0.0 <br />Portrait <br />0 0.0 0.0 <br />AT (ft2) <br />17.283 <br />10.226 <br />pd (lbs) <br />51.85 -707 <br />p w (lbs) ps (lbs) <br />0 <br />14.52 <br />2x4 <br />1.15 1.5 <br />17.00 <br />14.52 <br />17.00 <br />1000 <br />1.50 <br />3.50 <br />248 <br />272 <br />248 <br />612 <br />327 <br />327 <br />DCR <br />0.9 1553 psi D 974 psi 0.63 <br />3.06 <br />1725 <br />CD Fb' = C D * F b ASD Load Ma * S x <br />1.15 1984 psi D+S 974 psi 0.49 OKAY <br />OKAY <br />1.25 2156 psi D+Lr 1066 psi 0.49 OKAY <br />1.6 2760 psi <br />0.459 <br />209 120 <br />1700 5.36 <br />0.6D+0.6W 2397 psi 0.87 OKAY <br />1.0 1 <br />20 <br />0.00 <br />24 <br />Comp. <br />0.382 <br />251 180 <br />1.6 2760 psi D+0.45W+0.75S 1282 psi 0.46 OKAY <br />1.6 2760 psi D+0.45W+0.75Lr 1282 psi 0.46 OKAY <br />ൌ ሺ െ ሻ െ െ െ <br />‐800.0 <br />‐600.0 <br />‐400.0 <br />‐200.0 <br />0.0 <br />200.0 <br />400.0 <br />600.0 <br />800.0 <br />0.000 5.000 10.000 15.000 20.000 <br />643 E. Flora Unit <br />#204/14/22