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.
Roof line length calculator.
The run of the rafter.
Calculate the length of a rafter from the roof slope ratio of inches per foot and a building width measurement.
Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal.
As you begin to calculate various costs you will see that the cost is a result of the interplay of many different variables including roof area in terms of footage measurement of any roof extras like chimneys or skylights and the dimensions of.
The house base area is the area of land that the house covers and for more complex shapes can be estimated using the area calculator.
The length of the rafter.
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.
Roof slope calculator example of use.
If you add an eaves overhang dimension then the amount the rafter sticks passed the wall will be added to the rafter length.
Angle the angle of a roof is the same as the roof s slope except instead of being.
Includes result for hip valley factor slope factor and the roof slope in degrees.
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.
It will give you a roof pitch angle and a ratio between rise and run in the form of x 12.
The rise of the rafter.
This roof pitch calculator is an easily accessible tool that will assist you to measure the pitch and length of the rafters you are going to need for construction.
Height of the scaffold.
After finding out your roof pitch angles you can use the calculator to perform the calculations for you instead of doing them manually.
Let s assume it is equal to 6 m.
Roof pitch calculator results explained.
Rafter is the beam supporting the building.
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.
Calculate the rafter length substituting these values into the following formula.
Find its length with our online rafter length calculator.
Measure the rise of your roof.
The best part of a roofing calculator is that it offers a free insight into the total cost of the replacement roof project on a sq ft basis.
Let s say it is equal to 1 5 m.