Roof Rafter Span Calculator
Estimate roof rafter span from depth and spacing per IRC R802.5.
Max Rafter Span
13.5 ft
Rafter Size
2×8
Spacing
16 in OC
Snow Load
30 psf
Source
IRC R802.5 (Doug Fir #2)
Estimate roof rafter span from depth and spacing per IRC R802.5.
Max Rafter Span
13.5 ft
Rafter Size
2×8
Spacing
16 in OC
Snow Load
30 psf
Source
IRC R802.5 (Doug Fir #2)