Rafter Length Shed Roof Truss Design Calculator

This online truss calculator will determine the all in cost of your truss based on key inputs related to the pitch width and overhang of your roof.

Rafter length shed roof truss design calculator.

Rafter length calculator calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement. Enter this measurement into the calculator and select a roof pitch and the length of the rafter will automatically returned along with the rise. 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 a shed roof slopes in one direction only.

Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. Custom gambrels allow complete flexibility of design with all input fields enabled and few constraints on the shape of the roof other than the lower slope must be greater than or equal to the upper slope. Click the button to calculate the stock size needed for this job. Dimensions and area of a shed roof materials quantity for it the roof angle pitch.

If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length. 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. Input the rafter span on the flat eave overhang and pitch of the roof. Includes result for hip valley factor slope factor and the roof slope in degrees.

See rafter run to outer wall calculator below. The important point to keep in mind when you use your truss calculator is that every truss calculation is completely unique and is based on the size of your roof and its specific dimensions. This calculator is to be used as an estimating tool only. Number of rafters and their dimensions.

Print full scale rafter cut templates and birdsmouth templates fold template over rafter to mark or cut through. It will use the current cost of wooden rafters based on the average price found at home improvement stores. Allow for ridge thickness when determining rafter run to outer wall. Easy rafters is designed to calculate shed roofs that are framed to a ledger board nailed against a vertical wall not freestanding shed roofs supported by walls at both ends.