This siding reference table shows the panels/boxes needed for a range of wall area values, assuming a coverage per panel/box of 2 m² and a wastage allowance of 1%. Every figure is computed with the same engine that powers our Siding Calculator, so the numbers are exact.
| Wall area | Panels/boxes needed |
|---|---|
| 20 m² | 11 |
| 40 m² | 22 |
| 60 m² | 33 |
| 80 m² | 44 |
| 120 m² | 66 |
| 160 m² | 88 |
| 240 m² | 132 |
| 400 m² | 221 |
| 560 m² | 308 |
| 800 m² | 441 |
How to use this table
Find the row closest to your wall area and read across to the panels/boxes needed. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Siding Calculator for a precise answer.
Need a value that is not in the table? — the Siding Calculator does it instantly, for free, with the formula and a worked example built in.
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