How to use this tool
- Enter width, board width, gap between boards.
- Select Calculate to view the result.
- Check the method and assumptions below before using the result.
Input reference and sample values
Use the units and choices shown for each field. Sample values are provided for practice, not as recommendations.
| Input | Format and units | Sample |
|---|---|---|
| Width | Numeric value. Unit: m. Must be greater than zero. | 4 |
| Board width | Numeric value. Unit: m. Must be greater than zero. | 0.14 |
| Gap between boards | Numeric value. Unit: m. Zero or positive. | 0.005 |
Result for these sample inputs
28 rows
Select Try the example in the form to load these values and calculate them again. This replaces the current form inputs. Compare the result with the method and worked explanation below.
The method, explained
Board rows = ceil[(deck width + gap)/(board width + gap)].
Using width = 4 m, board width = 0.14 m, gap between boards = 0.005 m, the result is 28 rows. Change these example inputs to match your task; use the method above to check each step.
What to keep in mind
Assumes each board spans the full deck length; joins and framing are not calculated. A material-quantity estimate, not a structural design or building-code check. Confirm site measurements, supplier coverage and waste before ordering.
Methodology maintained by ClarityKit. How these tools are built and checked.