Shed Roof Rafters Calculator

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 rafters calculator.

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. This calculator helps you make the rafters of the suitable sizes required for your roofing. 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. 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.

If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length. 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. The roof rafters provide integral structural support to the roof. Includes result for hip valley factor slope factor and the roof slope in degrees.

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. 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. A roof pitch calculator can make things much easier. The preview window displays a dimensioned side view of the shed roof.

Use the diagrams on this page as a reference when inputting rise and run and while interpreting the calculated results. If the shed is unfinished then simply prop the speed square against the roof framing such as the rafter and repeat the same method. Rafter is a sloping beam usually wood that supports a pitched roof. Half building width minus 1 2 ridge thickness.

See rafter run to outer wall calculator below. Shed roof pitch calculator. 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.

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 length calculator calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement. The roof pitch calculator calculates slope pitch angle and rafter lengths based on input of rise m and run r.