Roof Rafter Material Calculator

Measure from the end of the level up to the bottom edge of the rafter.

Roof rafter material calculator.

In cases where a roof has a complex shape such as in the image to the right measuring the dimensions and areas of each part of the roof to calculate total area will result in a more accurate measurement of area. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length. Half building width minus 1 2 ridge thickness. Click the button to calculate the stock size needed for this job.

To calculate the materials you ll need enter your measurements in the calculator below. 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. 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. Roofing material calculator the calculated area is only an estimation.

The estimates are based on your house foot print length and width and roof slope. 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. Allow for ridge thickness when determining rafter run to outer wall. See rafter run to outer wall calculator below.

It will use the current cost of wooden rafters based on the average price found at home improvement stores. In the attic place the level against a rafter with the 12 inch mark on the bottom of the rafter. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. Roof pitch calculator roof slope calculator the roof pitch calculator is a convenient online tool you can use to quickly assess the pitch of your roof to determine the length of rafters you need.

Print full scale rafter cut templates and birdsmouth templates fold template over rafter to mark or cut through. Roof rafter calculator will estimate the length board size quantity cost per board and total cost of lumber. Input the rafter span on the flat eave overhang and pitch of the roof. 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.

Prices are based on quotes from multiple lumber yards and building material suppliers. This calculator is to be used as an estimating tool only. Our calculator will round up to the nearest foot.