Deck Board Calculator
Calculate deck boards, joists, posts, and fasteners for your deck project. Estimate materials for any deck size and shape.
How to Calculate Deck Materials
- 1 Enter your deck dimensions (length and width)
- 2 Select the decking type and board size
- 3 Choose your board pattern and joist spacing
- 4 Enter the deck height for post calculations
- 5 View the complete materials list including boards, joists, and hardware
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Last updated: January 15, 2026 · v2.1