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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. 2 <br />C M = 1 Ct = 1 Cr= CF = fb = psi C fu =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 />-26.18 <br />DF-L No. 2 <br />2 j lj (ft) pd,j  (lbs) pw,j  (lbs) ps,j  (lbs) <br />Portrait <br />1 2.7 51.8 -452 0.0 <br />7.0 51.8 -452 <br />0 0.0 <br />0 0.0 0.0 0 0.0 <br />0.0 <br />6.00 11.75 0.00 0.00 1.00 <br />Portrait <br />0 0.0 0.0 <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 30.65 -268 0 <br />0 <br />0.0 <br />0 <br />2 <br />0 <br />0 <br />0.0 <br />Portrait <br />2 <br />0.0 <br />Portrait <br />0 0.0 0.0 <br />AT (ft2) <br />17.274 <br />10.217 <br />pd (lbs) <br />51.821 -452 <br />p w (lbs) ps (lbs) <br />0 <br />7.76 <br />2x6 <br />1.15 1.3 <br />18.75 <br />7.76 <br />18.75 <br />900 <br />1.50 <br />5.50 <br />304 <br />517 <br />304 <br />268 <br />220 <br />220 <br />DCR <br />0.9 1211 psi D 482 psi 0.40 <br />7.56 <br />1346 <br />CD Fb' = C D * F b ASD Load Ma * S x <br />1.15 1547 psi D+S 482 psi 0.31 OKAY <br />OKAY <br />1.25 1682 psi D+Lr 821 psi 0.49 OKAY <br />1.6 2153 psi <br />0.287 <br />492 120 <br />1600 20.80 <br />0.6D+0.6W 426 psi 0.20 OKAY <br />1.0 1 <br />20 <br />0.00 <br />24 <br />Comp <br />0.145 <br />971 180 <br />1.6 2153 psi D+0.45W+0.75S 349 psi 0.16 OKAY <br />1.6 2153 psi D+0.45W+0.75Lr 349 psi 0.16 OKAY <br />ൌ ሺ െ ሻ െ െ െ <br />‐200.0 <br />‐100.0 <br />0.0 <br />100.0 <br />200.0 <br />300.0 <br />0.000 5.000 10.000 15.000 20.000 <br />1213 N Lyon St <br />03/20/23