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Deck Board Calculator
Estimate boards, joists, and cost for your deck
Deck Length (ft)
Deck Width (ft)
Board Width (in)
Board Length (ft)
8 ft
10 ft
12 ft
16 ft
Gap Spacing (in)
Waste %
Material
Pressure Treated ($1.50/lf)
Cedar ($3.50/lf)
Composite ($5.00/lf)
Calculate
Results
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Deck Area (sq ft)
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Boards Needed
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Total Linear Feet
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Joists (16" OC)
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Board Cost
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Joist Cost (est.)
Joist estimate assumes 2x8 pressure treated at $1.20/lf. Add 10-15% for hardware, posts, and railing.