Shed Roof Rafter Calculator

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 rafter calculator. This calculator is to be used as an estimating tool only. Half building width minus 1 2 ridge thickness. Print full scale rafter cut templates and birdsmouth templates fold template over rafter to mark or cut through. Rafter length calculator calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement.

Input the rafter span on the flat eave overhang and pitch of the roof. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. This calculator helps you make the rafters of the suitable sizes required for your roofing. 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.

Rafter is a sloping beam usually wood that supports a pitched roof. The preview window displays a dimensioned side view of the shed roof. 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. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length.

The results are automatically fired. Click the button to calculate the stock size needed for this job. 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. Kalk pro is online shed roof calculator single slope pent roof skillion program determines basic material consumption for roof building roofing underlayment volume all quantitative and dimensional values of the shed pent roof truss system.

Allow for ridge thickness when determining rafter run to outer wall. Dimensions and area of a shed roof materials quantity for it the roof angle pitch. 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. Includes result for hip valley factor slope factor and the roof slope in degrees.

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.