Deck-board quantity planning for a main rectangular field.
Deck dimensions, board face width, gap, stock length and waste.
Rows, linear feet and a board purchase starting point.
Stairs, borders, picture framing, fasteners and framing are separate quantities.
See the estimated project quantity from your measurements.
Add waste and round to complete bags, boxes, cans, bundles or delivery quantities.
Review product coverage, site conditions, local requirements and supplier details before ordering.
Estimate board rows and linear feet using deck size, board face width, installed gap, and waste.
Use the result card above to copy, print or share the estimate, then verify the final order with the product label or supplier quote.
The calculator estimates how many installed board rows fit across the deck width using board face width plus the planned gap. It then multiplies those rows by deck length and applies your waste allowance.
A 16 × 12 ft deck using 5.5 in boards with a 1/8 in gap needs enough rows to cover the 12 ft width, then linear footage for each 16 ft run.
Confirm installation details: actual board width, required spacing, butt joints, picture framing, diagonal layouts, blocking, and available stock lengths can change the final takeoff.
No. This page estimates deck-board quantity only, not structural framing.
Installed spacing changes how many rows fit across the deck width.
Swap the deck length and width so the calculator follows the actual board direction.