Roof Rafter Length Calculator Metric

Let s assume it is equal to 6 m.

Roof rafter length calculator metric. Print full scale rafter plumb cut templates and birdsmouth templates fold template over rafter to mark or cut through. Slope the slope of a roof is represented as x 12 where x is the number of inches in rise for every 12 inches of run this is very useful information for many purposes especially for roof framing the slope sometimes called pitch is calibrated on speed squares. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. The length of the rafter.

Half building width minus 1 2 ridge thickness. Porch roof extensions for hip roof porch extensions from an existing building wall you can use half the calculator results. Minus ridge thickness to allow for ridge becoming pole plate roof peak will be slightly higher ridge thick must be same. Measure the run length it is the horizontal distance between the roof ridge and the wall of the building.

Enter the extension wall length into wall length and double the extension wall width then minus ridge thickness into the wall width entries. Calculate the rafter length substituting these values into the following formula. Calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement. Roof slope calculator example of use.

This calculator helps you make the rafters of the suitable sizes required for your roofing. If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length. From your average hip roof calculator to something more specific like a hip roof rafter calculator there is plenty to consider with this kind of calculation. The rise of the rafter.

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. Enter the value for the roof width outside to outside in feet inches and fraction inches and fraction or use the inches box to enter a value in decimals if that is your preference. Let s say it is equal to 1 5 m. Measure the rise of your roof.

See rafter run to outer wall calculator below. Angle the angle of a roof is the same as the roof s slope except instead of being. Allow for ridge thickness when determining rafter run to outer wall. Calculate the length of a rafter in metres using the roof slope measured in degrees and the gable wall width in metres.

Height of the scaffold. The run of the rafter. Rafter is a sloping beam usually wood that supports a pitched roof. If there is an overhang the rafter overhang is measured in millimetres from outside wall to inside fascia board level across.

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. Roof pitch calculator results explained.