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Decking calculators

Deck area, board courses, stock lengths, joists, fasteners, waste, and material cost.

Deck Calculator estimates deck boards, joists, fasteners, area, and cost for rectangular residential deck material planning.

Composite Decking Calculator estimates composite boards and installation quantities for capped composite deck surfaces.

Wood Deck Calculator estimates wood deck boards and joists for pressure-treated, cedar, redwood, and hardwood deck surfaces.

Deck Board Calculator estimates board courses and stock boards for surface-only deck-board ordering.

Trex-Style Composite Decking Calculator estimates brand-neutral composite deck boards for planning grooved or square-edge composite decking.

Patio Decking Calculator estimates low-deck or platform-deck boards for ground-level patios and freestanding platforms.