Deck boards calculator
Estimate full-length board rows across a deck.
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Your measurements
Enter your project values. Your estimate updates as you type.
View your estimateExample values are a starting point. Check product yields and specifications before ordering.
YOUR ESTIMATE
Boards to buy
31
Rows before waste28
Total board length186 m
Deck area24 m²
Whole quantities are rounded up.
How it's calculated
Board rows = (deck width + gap) ÷ (board width + gap), rounded up. Apply waste and round up again.
Calculations use consistent units for your selected measurements. The waste allowance is applied once to the measured requirement. Whole purchase quantities are rounded up.
What this estimate includes
Boards are assumed to span the full deck length. Joins, picture-frame edges and minimum end cuts need a separate layout.
Quantity and arithmetic estimates only. Use project specifications for installation and design requirements.
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