This deck board reference table shows the boards needed for a range of deck length values, assuming a deck width of 4 m, an area per board of 0.5 m² and a wastage allowance of 1%. Every figure is computed with the same engine that powers our Deck Board Calculator, so the numbers are exact.
| Deck length | Boards needed | Deck area |
|---|---|---|
| 1.3 m | 12 | 5.20 |
| 2.5 m | 22 | 10.00 |
| 3.8 m | 34 | 15.20 |
| 5 m | 44 | 20.00 |
| 7.5 m | 66 | 30.00 |
| 10 m | 88 | 40.00 |
| 15 m | 132 | 60.00 |
| 25 m | 221 | 100.00 |
| 35 m | 308 | 140.00 |
| 50 m | 441 | 200.00 |
How to use this table
Find the row closest to your deck length and read across to the boards needed. For a value between two rows, the real figure sits between them — or enter your exact numbers in the Deck Board Calculator for a precise answer.
Need a value that is not in the table? — the Deck Board Calculator does it instantly, for free, with the formula and a worked example built in.
Related calculators
Continue exploring construction calculators with these tools: Carpet Calculator, Roof Shingle Bundles Calculator, Mortar Bags Calculator, Concrete Bags Calculator, Siding Calculator.