What is Roof Pitch?
Roof pitch is the degree of slope to your roof, expressed as a ratio of rise over run - increase in vertical height per unit of length relative to the ground.
For example, this diagram shows a 10/12 pitch:
What's My Roof Pitch?
Here's the easiest way to calculate roof pitch:
- On both sides of your roof, measure down 36" along the trim from the peak and make a mark.
- Measure across the face of your gable, from mark to mark, and write down the value in inches.
Consult This Roof Pitch Chart:
| Inches Across | Roof Pitch |
|---|---|
| 68-3/8" | 4 / 12 |
| 66-1/2" | 5 / 12 |
| 64-3/8" | 6 / 12 |
| 62-1/4" | 7 / 12 |
| 59-7/8" | 8 / 12 |
| 57-5/8" | 9 / 12 |
| 55-3/8" | 10 / 12 |
| 53-1/8" | 11 / 12 |
| 50-7/8" | 12 / 12 |
Typically, you will be very close to one of these chart dimensions, but rare 'half pitch' roofs will fall somewhere in between values.
If your project needs a custom pitch, contact us for customization options.
