Rise Over Run Roof Calculator

A roof pitch that is based on a fixed rise and run and does not end up with a whole number is known as a bastard pitch.

Rise over run roof calculator.

Enter run the flat level length then click pitch angle or rise to select then enter other known dimension angle or pitch. Angle the angle of a roof is the same as the roof s slope except instead of being. In roof pitch calculator pitch value can be obtained by dividing n by. A roof with a 6 rise for every 12 run has a 6 per foot or 6 in 12 pitch.

Slope percent amount of rise amount of run x 100. Pitch is thus the ratio of the rise in inches to a 12 inch run and is often expressed using a semicolon for example 6 12. Drag sliders to animate the results and diagram. Express roof pitch as the ratio of the amount of the vertical rise of a roof or rise over the corresponding horizontal distance or run you write the pitch assuming a run of 12 inches thus the ratio would describe how much a roof rises for each foot of the run.

Roof pitch calculator results explained. 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. Let s assume it is equal to 6 m. The angle percent of a slope with rise of 6 units and run of 10 units is.

To find the percentage of a slope use this slope percent formula. Roof pitch is the measurement of a roof s vertical rise divided by its horizontal run. Calculate the rafter length substituting these values into the following formula. Here is an online rise and run calculator which helps to calculate pitch slope and angle with the help of rise and run values.

Measure the run length it is the horizontal distance between the roof ridge and the wall of the building. Rise and run means that a 6 12 pitch roof has 6 of rise vertical for each foot of run horizontal. It is often compared to slope but is not exactly the same. Angle percentage 6 10 x 100.

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. The rise is the distance from the top of the roof to the bottom. Measure the rise of your roof. Let s say it is equal to 1 5 m.

Enter the rise and run for the pitch length and angle of the rafter. How do you find the percent of slope using rise over run. The run is the distance from the outside of the wall to the inside of the ridge. The triangle diagram will be re drawn to scale with all dimensions marked.

Calculate roof pitches with this free and simple online tool.