Gable Roof Rafter Calculator

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.

Gable roof rafter calculator.

Trusses can be constructed with smaller sized lumber than rafters and often their cost is not significantly higher than normal rafters. Rafter length calculator calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement. Half building width minus 1 2 ridge thickness. The image clearly shows all the options you want.

To calculate a gable roof select gable from the roof type dropdown list or click on the corresponding button on the toolbar to calculate a gable roof. The results are automatically fired. Roof rafter calculator will estimate the length board size quantity cost per board and total cost of lumber. The estimates are based on your house foot print length and width and roof slope.

The calculation of the shed roof rafters run another calculator. See rafter run to outer wall calculator below. Allow for ridge thickness when determining rafter run to outer wall. After they re up you can snap a line to mark and trim the tails in a nice straight line to make up for any ridge warp or marking cutting and fixing errors.

The roof pitch calculator calculates slope pitch angle and rafter lengths based on input of rise m and run r. The calculator provides online calculate the length of rafters a gable roof. Prices are based on quotes from multiple lumber yards and building material suppliers. In the select dimensions you need to make the roof by selecting appropriate units of measurement.

Print full scale rafter cut templates and birdsmouth templates fold template over rafter to mark or cut through. To get all data from gable roof calculator you need to measure and enter in the appropriate fields following sizes. Gable roof framing calculator plan diagram with full dimensions for a good straight fascia add an extra inch or 2 to the tails of all your rafters total length. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length.

The section thickness x width and the pitch of the rafters depends on the angle of the roof its type length stropilnoj feet maximum short time withstand major loads and the type and weight of roofing and even to some extent the width of the insulation. Use the diagrams on this page as a reference when inputting rise and run and while interpreting the calculated results.