Gable Roof Truss Calculator

Use of manufactured roof trusses can dramatically cut labor costs when framing a gable roof compared to building rafters.

Trusses can be constructed with smaller sized lumber than rafters and often their cost is not significantly higher than normal rafters.

Since they can be fastened directly in place much less labor is required compared to bird mouth, plumb, and tail cuts on individual rafters.

Our roof truss calculator can be used to aid you in the purchase of your trusses by determining the quantity of trusses and lineal feet required.

ROOFING TRUSS CALCULATOR
A) Roof Length in feet	B) On Center (inches between trusses)	C) Width of bottom cord in feet
ft	inches	ft

How to Enter Sizes

24 Feet	24
24 Feet 6 inches	24 6
24 Feet 6 & 1/2 inches	24 6 1/2