Decking Calculator
Calculate decking materials, including boards, joists, beams, and fasteners. Perfect for planning your deck construction project.
ft
ft
in
in
Standard gap is 1/8" (0.125 in)
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Decking Result
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Deck Layout
Visual representation of deck boards
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Calculation Breakdown
Step-by-step decking calculation
Deck Boards
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Total needed
Deck Area
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sq ft
Total Cost
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Materials
Waste Factor
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%
Length
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ft
Width
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ft
Joist Spacing
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in
Material
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Type
Decking Formulas
Key construction concepts
Deck Building Tips
Building a great deck
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Construction Disclaimer: This decking calculator provides estimates based on inputs. Always consult local building codes and a structural engineer for proper design and safety requirements.