The roof pitch calculator is a convenient online tool you can use to quickly assess the pitch of your roof to determine the length of rafters you need.
Lean to roof pitch calculator.
Enter this measurement into the calculator and select a roof pitch and the length of the rafter will automatically returned along with the rise.
This is rarely is a whole number it is not a rare event and it is not a nightmare.
In other words if there is a 1 1 2 ridge board nailed into the wall and the width of the lean to is 96 then the run will be 94 1 2 96 1 1 2 94 1 2.
To see how pitch impacts the look of a garage and changes cost click the design center button on our pole barn kits page.
Use the diagrams on this page as a reference when inputting rise and run and while interpreting the calculated results.
Enter the rise and run for the pitch length and angle of the rafter.
This free roof pitch calculator will take your roof width see the picture and rise the height of the roof and will calculate the roof pitch both as numeric value and as a degree.
After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.
The roof pitch calculator calculates slope pitch angle and rafter lengths based on input of rise m and run r.
A roof pitch that is based on a fixed rise and run and does not end up with a whole number is known as a bastard pitch.