Decking Calculators
Count boards from length, width, face width, and gap. Composite / Trex-style profiles and hidden clips are on the composite calculator.
Quantity calculators
- Decking CalculatorCalculate deck boards, joists, and fasteners from length, width, board size, and gap — wood or composite. Free US DIY planning tool.
- Composite / Trex Decking CalculatorCalculate composite deck boards, joists, and hidden clips from profile width and pattern — Trex-style planning without a brand bid. Free US tool.