Estimate deck boards, spacing, waste, purchased length and material cost.
Enter the deck and board dimensions to estimate board quantity, waste, purchased linear length and optional cost.
Includes your selected waste allowance.
This estimate treats each board plus its gap as the effective coverage width. Confirm board spacing and expansion requirements with the specific decking manufacturer before ordering.
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Estimate decking boards from the deck footprint, board width and spacing, then account for cuts, waste and stock length.
PlanCalq estimates how many board courses fit across the deck using board width plus the gap between boards.
It then calculates the board length required for those courses, adds waste and divides by the stock board length to estimate full boards to purchase.
Deck width ÷ (board width + gap) = board coursesBoard courses × run length = total installed board lengthInstalled length × (1 + waste %) ÷ stock length = boards to buyEvery gap occupies part of the deck width. Across many courses, that spacing changes the number of boards needed.
No. PlanCalq estimates decking boards and purchase cost only; structural deck design is outside this tool.
Simple square decks can use less waste than diagonal boards, picture-frame borders, stairs or designs with many cuts.