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Check Existing Rafter <br />Aug. 3, 2023 13:00 <br />Design Check Calculation Sheet <br />WoodWorks Sizer 2023 <br />Loads: <br />Load Type Distribution Pat- Location [ft] Magnitude Unit <br /> tern Start End Start End <br />Roof-DL Dead Full Area No 10.00(24.0") psf <br />Roof-LLR Roof constr. Full Area Yes 20.00(24.0") psf <br />PV1 Dead Point No 8.00 29 lbs <br />PV2 Dead Point No 13.00 29 lbs <br />PV3 Dead Point No 14.50 29 lbs <br />PV4 Dead Point No 19.50 29 lbs <br />Self-weight Dead Full UDL No 2.0 plf <br />Maximum Reactions (lbs) and Bearing Lengths (in) : <br />1.67' 11.67' <br />24.566' <br />21.67' <br />Unfactored: <br /> Dead 149 377 129 <br /> Roof Live 253 478 182 <br />Factored: <br /> Total 402 855 312 <br />Bearing: <br /> Length 0.50* 0.73 0.50* <br /> Min req'd 0.50* 0.73** 0.50* <br />*Minimum bearing length setting used: 1/2" for end supports and 1/2" for interior supports <br />**Minimum bearing length governed by the required width of the supporting member. <br /> Lumber-soft, D.Fir-L, No.2, 2x6 (1-1/2"x5-1/2") <br />Supports: All - Timber-soft Beam, D.Fir-L No.2 <br />Roof joist spaced at 24.0" c/c; Total length: 24.81'; Clear span(horz): 1.625', 9.938', 9.938'; Volume = 1.4 cu.ft.; Slope: 28.0 deg <br />Lateral support: top = continuous, bottom = 4'-0 (in); Repetitive factor: applied where permitted (refer to online help); <br />This section PASSES the design code check. <br />WARNING: Member length exceeds typical stock length of 18.0 ft <br />Analysis vs. Allowable Stress and Deflection using NDS 2018 : <br /> Criterion Analysis Value Design Value Unit Analysis/Design <br /> Shear fv = 70 Fv' = 225 psi fv/Fv' = 0.31 <br /> Bending(+) fb = 978 Fb' = 1682 psi fb/Fb' = 0.58 <br /> Bending(-) fb = 1405 Fb' = 1592 psi fb/Fb' = 0.88 <br />Deflection: <br /> Interior Dead 0.13 = < L/999 <br /> Live 0.25 = L/545 0.57 = L/240 in 0.44 <br /> Total 0.38 = L/359 0.76 = L/180 in 0.50 <br /> Cantil. Dead -0.05 = L/489 <br /> Live -0.14 = L/163 0.19 = L/120 in 0.74 <br /> Total -0.19 = L/122 0.25 = L/90 in 0.74 <br />3409 S Olive St <br />08/29/23