Free Tool
Deck Material Calculator
Enter your deck dimensions to get a starting material list: joists, decking boards, and roughly how many screws to order.
Deck area
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Joists needed
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Decking boards
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Est. screws
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This is material quantity only, not a structural design tool - framing spans, footing spacing, and joist sizing all depend on local code, load requirements, and the specific product you're using. Always confirm framing against your local building department and lumber span tables before ordering. Screw count uses a common rule of thumb of roughly 350 deck screws per 100 sq ft of decking.
This math, built into every bid
Punchlist's reusable cost catalog keeps material quantities and pricing consistent across every deck job, not re-guessed each time.