Precision Estimates
Our calculator covers all components, from surface boards to critical substructure elements, ensuring you have the right quantities.
Decking Linear Footage
Joist On-Center Spacing
Post & Footing Requirements
Accurate linear footage for 5/4x6 lumber or composite profiles, with configurable waste allowance factors.
Calculates joist and beam counts for 12, 16, or 24-inch on-center layouts, adhering to building code verification.
Estimates posts and concrete footings needed for structural integrity, including bag counts for purchasing quantity.
Always Round Up to Standard Lumber Lengths
Our calculations ensure purchasing quantities are rounded to common 8, 12, or 16-foot lengths, minimizing cuts and waste on the jobsite.
Plan Your Next Project Phase
Seamlessly transition to estimating stairs or concrete for your deck's foundation and post holes.