Roof Truss Calculator
Estimate dimensions, angles, and lumber for common roof truss types.
Building Dimensions
Total width of the building
Rise per foot of run (e.g., 6/12)
Distance between trusses
Eave overhang on each side
Truss Type
Select the truss style
Lumber dimension for chords
Add waste for cuts
Price per board foot of lumber
Rise
0.0
ft
Rafter Length
0.0
ft
Angle
0.0
°
Number of Trusses
0
Total Lumber
0.0 bd ft
Truss Type
Common
Total Cost
$0
Run
0.0
ft
Lumber Size
2×6
selected
Pitch
6/12
selected
A Fink truss is the most common type for residential construction. Add 10-15% for waste.
Rafter Length = √(Run² + Rise²)
1 board foot = 1 ft × 1 ft × 1 in