Pitched Roof Rafter Calculator

Includes result for hip valley factor slope factor and the roof slope in degrees.

Pitched roof rafter calculator. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. Our roof rafter calculator tools are handy for calculating the number of rafters needed rafter length calculator lineal feet of rafter board feed in ridge and sub facia and the total board feet in the roof. After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length.

Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. The run of the rafter. The length of the rafter. You can also use this roof slope calculator to recalculate the roof pitch from degrees to percents.

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. The results are automatically fired. Calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement. The rise of the rafter.

Height of the scaffold. Angle the angle of a roof is the same as the roof s slope except instead of being. We will explain to you how to determine the roof pitch step by step.