This roof area reference table shows the sloped roof area for a range of roof footprint length values, assuming a roof footprint width of 8 m, a pitch rise of 6 and a pitch run of 12. Every figure is computed with the same engine that powers our Roof Area Calculator, so the numbers are exact.
| Roof footprint length | Sloped roof area | Footprint area |
|---|---|---|
| 2.5 m | 22.36 | 20.00 |
| 5 m | 44.72 | 40.00 |
| 7.5 m | 67.08 | 60.00 |
| 10 m | 89.44 | 80.00 |
| 15 m | 134.16 | 120.00 |
| 20 m | 178.89 | 160.00 |
| 30 m | 268.33 | 240.00 |
| 50 m | 447.21 | 400.00 |
| 70 m | 626.10 | 560.00 |
| 100 m | 894.43 | 800.00 |
How to use this table
Find the row closest to your roof footprint length and read across to the sloped roof area. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Roof Area Calculator for a precise answer.
Need a value that is not in the table? — the Roof Area Calculator does it instantly, for free, with the formula and a worked example built in.
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