How to Calculate 11/12 Pitch Rafter Length

To calculate the rafter length, input either the Run or the Rise into the calculator and click calculate. The system will automatically compute the rafter length for you.

Note: "11 12 Pitch" typically refers to a slope or pitch of the roof, where 11 inches of rise occurs over 12 inches of run.

11/12 Roof Pitch Multiplier

11/12 roof pitch multiplier is 1.8333

11/12 Pitch Roof Angle

11/12 pitch roof angle is 40.60 degrees

11/12 Roof Pitch Template