Pitch Of Roof Calculator

In the united states a run of 12 inches 1 foot is used and pitch is measured as the rise of the roof over 12 inches.

Pitch of roof calculator.

Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12. You can also use this roof slope calculator to recalculate the roof pitch from degrees to percents. The pitch is commonly defined as the ratio of rise over run in the form of x 12.

The rise is the height of the roof and the run is the horizontal span as pictured above. The roof pitch is the slope of the rafter. Roof pitch or slope is a measure of vertical rise to horizontal run expressed in inches per foot. After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.

It is often compared to slope but is not exactly the same. This roof pitch calculator is a handy tool that will help you quickly assess what is the pitch of your roof of what length of rafters you need for your construction works. A a roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch. For example if a roof has a pitch of 4 12 then for every 12 inches the building extends horizontally it rises 4 inches.

Use the diagrams on this page as a reference when inputting rise and run and while interpreting the calculated results.