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Deck Calculator
Calculate decking materials
Formulas and edge cases are reviewed against authoritative references before publication. For methodology, editorial standards, or corrections, use the links below.
Frequently asked questions
What does the Deck Calculator do?
It helps you calculate decking materials. It supports both US and metric units.
What inputs do I need?
Enter Deck length, Deck width, Board width, and Waste.
Are decimals supported?
Yes, you can use decimal values where appropriate.
Related tools
About this tool
Inputs
- Deck length
- Deck width
- Board width
- Waste
Results
- Deck area
- Board linear feet
If you have ever wondered how the numbers add up, this Deck Calculator shows you. Enter your figures and the result appears immediately. All you need to supply is deck length, deck width, board width and waste. From there, the tool determines deck area and board linear feet. Material waste factors (typically 5-15%) should be added on top of the theoretical amount.
Concrete volume in cubic yards = (length × width × depth in feet) ÷ 27. Whether you need to calculate decking materials for a quick check or a thorough analysis, this tool adapts to both. Measure twice, order once — re-measuring saves far more than the few minutes it costs. Use the result as a starting point for deeper analysis. Pair it with other tools for a more complete picture.