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.

Rafter length shed roof truss design calculator. 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. 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. Half building width minus 1 2 ridge thickness.

Rafter length using angle v r 2cos a rafter length using pitch v r 2 sqrt 1 p 2 where v overhang r roof span p pitch 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. See rafter run to outer wall calculator below. 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. 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.

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. It will use the current cost of wooden rafters based on the average price found at home improvement stores. Shed roof a shed roof slopes in one direction only. Dimensions and area of a shed roof materials quantity for it the roof angle pitch.

This calculator is to be used as an estimating tool only. Print full scale rafter cut templates and birdsmouth templates fold template over rafter to mark or cut through. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. Number of rafters and their dimensions.

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