Home & Construction
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.
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About this tool
This Deck Calculator turns your inputs into practical results. Provide Deck length, Deck width, and Board width to calculate Deck area and Board linear feet.
Adjust values to compare scenarios and see how sensitive the result is. The calculation uses the numbers as entered, so double-check units and expect small differences from rounding in the displayed totals.