Shed Roof Rafter Calculator

The preview window displays a dimensioned side view of the shed roof.

Shed roof rafter calculator.

Rafter length calculator calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement. Print full scale rafter cut templates and birdsmouth templates fold template over rafter to mark or cut through. 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. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length.

Allow for ridge thickness when determining rafter run to outer wall. The results are automatically fired. 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. Input the rafter span on the flat eave overhang and pitch of the 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. This calculator helps you make the rafters of the suitable sizes required for your roofing. 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. See rafter run to outer wall calculator below.

The program will calculate the parameters and the length of the rafters of a shed roof length of the rafters length overhang the angle of the saw cut the distance to drinking. Half building width minus 1 2 ridge thickness. Rafter is a sloping beam usually wood that supports a pitched roof. This calculator is to be used as an estimating tool only.

Dimensions and area of a shed roof materials quantity for it the roof angle pitch. 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. 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.

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