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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 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 />1.0 1 <br />20 <br />0.00 <br />16 <br />Comp. <br />0.832 <br />262 180 <br />1.6 2208 psi D+0.45W+0.75S 972 psi 0.44 OKAY <br />1.6 2208 psi D+0.45W+0.75Lr 972 psi 0.44 OKAY <br />1.6 2208 psi <br />0.923 <br />236 120 <br />1700 47.63 <br />0.6D+0.6W 2053 psi 0.93 OKAY <br />1.15 1587 psi D+S 1032 psi 0.65 OKAY <br />OKAY <br />1.25 1725 psi D+Lr 1196 psi 0.69 OKAY <br />DCR <br />0.9 1242 psi D 1032 psi 0.83 <br />13.1 <br />1380 <br />CD Fb' = C D * F b ASD Load Ma / S x <br />2x8 <br />1.15 1.2 <br />21.17 <br />16.22 <br />21.17 <br />1000 <br />1.50 <br />7.25 <br />1130 <br />1309 <br />1130 <br />2248 <br />1064 <br />1064 <br />0 <br />0.0 <br />0 <br />6 <br />0 <br />0 <br />0.0 <br />Portrait <br />6 <br />0.0 <br />Portrait <br />0 0.0 0.0 <br />AT (ft 2) <br />13.614 <br />9.1498 <br />pd (lbs) <br />40.841 -453 <br />p w (lbs) ps (lbs) <br />0 <br />16.22 26.7 <br />0.0 0.0 0.0 0.0 <br />0 0.0 <br />Portrait <br />0 <br />0.0 27.45 -304 0 <br />0 0.0 <br />Portrait <br />0 0.0 0.0 0 <br />0.0 <br />18.7 <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 <br />0.0 <br />2.00 18.17 0.00 0.00 1.00 <br />Portrait <br />3 11.8 40.8 <br />14.00 <br />-33.28 <br />DF-L No. 1 <br />4 j lj (ft) pd,j  (lbs) pw,j  (lbs) ps,j  (lbs) <br />Portrait <br />1 6.7 40.8 -453 0.0 <br />10.4 40.8 -453 <br />-453 0.0 <br />4 15.6 40.8 -453 0.0 <br />ൌ ሺ െ ሻ െ െ െ <br />‐3000.0 <br />‐2000.0 <br />‐1000.0 <br />0.0 <br />1000.0 <br />2000.0 <br />0.000 5.000 10.000 15.000 20.000 25.000 <br />710 N Minter St <br />Unit 508/11/22