Deck Board Calculator
Calculate deck boards and fasteners for your deck build.
🔄 Updated October 13, 2026
About the Deck Board Calculator
Planning a build or renovation? The Deck Board Calculator gives fast, reliable planning estimates. Calculate deck boards and fasteners for your deck build. Figures include a small waste allowance where relevant. For bigger projects, compare with the Concrete Calculator and Gravel Calculator.
How to use this calculator
- Enter your numbers in the fields above.
- Results update instantly — no button to press, no page reload.
- Adjust the inputs to compare scenarios with the Deck Board Calculator.
Keep exploring: Concrete Calculator · Paint Calculator · Tile Calculator · Brick Calculator
Frequently asked questions
What gap between deck boards?
A 1/4-inch gap allows drainage and expansion.
How many screws per board?
Roughly 2 screws per joist crossing — the calculator estimates totals.
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