Deck Calculator
Estimates deck area and the number of deck boards needed.
Lilu Baba's Deck Calculator estimates total deck area and how many board rows you'll need across the deck's width, accounting for board spacing.
How to use this calculator
- Enter the deck's length and width.
- Enter your deck board's width and the gap you'll leave between boards.
- Estimated deck area and board rows needed update instantly.
Board Rows Needed (across width)
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Deck Area (m²)
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FAQ
Deck Calculator — frequently asked questions
Small gaps allow for drainage, airflow and natural wood expansion/contraction with weather.
This estimates board rows across the deck's width; you'll also need boards to span the deck's length, cut or joined as needed.