Span Options Calculator
for Wood Joists & Rafters
www.awc.org
Species

Ctrl-Click to select multiple species















Required Horizontal Span ft.   in.
Member Type
Deflection Limit
Spacing (in)
Live Load (psf)
Dead Load (psf)
Exterior Exposure
Wet service conditions?
Incised lumber?














       
spancalc
Span Calculator for Wood Joists and Rafters available for the iPhone.
spancalc_google
Span Calculator for Wood Joists and Rafters also available for the Android OS.