Shed Roof Rafters Calculator

If the shed is unfinished then simply prop the speed square against the roof framing such as the rafter and repeat the same method.

Shed roof rafters calculator.

Use the diagrams on this page as a reference when inputting rise and run and while interpreting the calculated results. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length. To calculate a shed roof select shed from the roof type dropdown list or click on the corresponding button on the toolbar to calculate a shed roof. The results are automatically fired.

The roof pitch calculator calculates slope pitch angle and rafter lengths based on input of rise m and run r. See rafter run to outer wall calculator below. The run for a lean to shed rafter ending into a wall should account for the ridge board nailed into the wall where the tops of the rafters rest into. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal.

Simply plug in the. Online rafter length calculator calculate the length of common rafters with this free and easy online tool by entering a dimension for the roof width selecting a pitch for the roof and the thickness of the ridge. Use our online rafter length calculator to quickly compute the length of the shed roof rafter by entering the measurements of overhead length of roof span pitch or angle. Shed roof pitch calculator.

Common rafter calculator rafter dimensions plumb cuts birds mouth dimensions cutting templates inch allow for ridge thickness when determining rafter run to outer wall. Rafter is a sloping beam usually wood that supports a pitched roof. Before you cut your boards you ll need to measure the width of your building and calculate the exact length of each rafter. The preview window displays a dimensioned side view of the shed roof.

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. If you re framing a gable roof on a new house or building a shed or even a doghouse with a gable roof you ll need to cut a number of roof rafters. 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. Half building width minus 1 2 ridge thickness.

This calculator helps you make the rafters of the suitable sizes required for your roofing. Rafter length calculator calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement. Knowing how to calculate roof pitch rise run and ridge board height is essential to any shed construction.