Lean To Roof Pitch Chart

Measure with a speed square.

Lean to roof pitch chart.

Enter this measurement into the calculator and select a roof pitch and the length of the rafter will automatically returned along with the rise. Divide the first part of the ratio by 12 to work out the pitch. To convert between american roofing ratios and pitch degrees follow these steps. Check your results with the omni roof pitch calculator.

The pitch of this roof is 4 8 12. A 12 12 pitch roof has a pitch angle of 45. Roof pitch degree table. The calculator above can handle much of this math.

If this isn t practical then perform the same measurement on the underside of the roof. Set the level on the edge of the speed square as shown below then place the heel of the speed square on a rafter or gable edge of the roof. A speed square and level can be used to easily find the pitch of a roof. Find the inverse tangent of the pitch to find the angle in degrees.

We included a roof pitch chart below the 7 12 example image and the calculator below that. After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually. Simply plug in the values of your roof and it will show you slope percentage degree and even length. 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.

A roof pitch calculator can make things much easier. 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. Shed roof pitch calculator.