No fooling around with tape measures and levels.
Roof truss angle finder.
Recalculate this value into an angle.
This free online truss and roof calculator generates the axial forces and reactions of completely customisable 2d truss structures.
Calculate the roof pitch as the proportion of rise and run.
Simply set it on your roof or the underside of a rafter and read the gauge.
Use the diagrams on this page as a reference when inputting rise and run and while interpreting the calculated results.
Roof angle 1 1 5 2 2 5 3 3 5 4 4 5 5 5 5 6 6 5 7 7 5 8 8 5 9 9 5 10 10 5 11 11 5 12 12 5 13 13 5 14 14 15 5 15 5 16 16 5 17.
Most angle finders only work on the top side of a roof.
Rafter rise run 1 5 6 2 25 36 38 25rafter 38 25 6 18 m.
Angle arctan pitch arctan 0 25 14.
This rafter truss calculator has a range of applications including being used as a wood truss calculator roof truss calculator roof rafter calculator scissor truss calculator or for roof framing.
Pitch rise run 1 5 6 25.
The truss calculator will determine your roof trusses based on key inputs related to the pitch span and overhang of your roof.