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Span Calculations
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| 100 psf @ 12" Span |
| W = 100 psf w = 100 psf x .5ft = 50 plf M = (1/8) wl2 M = (1/8) 50 x (l)2 = 6.25 ft-lb for 100 psf at 12" o/c span |
| 50 psf @ 16" Span |
| W = 50 psf w = 50 psf x .5ft = 25 plf M = (1/8) wl2 M = (1/8) 50 x (l.33)2 = 5.56 ft-lb for 50 psf at 16" o/c span |
| 60 psf @ 15" Span |
| W = 60 psf w = 60 psf x .5ft = 30 plf M = (1/8) wl2 M = (1/8) 50 x (l.25)2 = 5.86 ft-lb for 60 psf at 15" o/c span |