Shiplap Calculator: Boards, Area, and Cost Estimator

Your details

Horizontal span of the wall or ceiling you are covering.
ft
Vertical span (or depth for a ceiling).
ft
Combined area of all windows and doors. The calculator subtracts this from the gross wall area.
ft²
The nominal width determines how many rows of boards span the wall height.
Standard stocked lengths. Choose the length closest to or longer than your wall width to minimise seams.
Nickel-gap shiplap uses a small reveal between boards. Traditional shiplap overlaps with no visible gap.
Extra boards to cover off-cuts, damaged pieces, and installation mistakes. 10% is the industry standard for straight horizontal runs.
Cost of a single board at your local supplier. Leave at 0 to skip cost calculation.
USD
Professional installation typically runs $1-$4 per sq ft. Leave at 0 for a DIY project.
USD/ft²
Boards to buy
44

Boards needed including waste factor - always round up when purchasing

Net area to cover108ft²
Boards (no waste)40
Total linear feet352lin ft
Coverage per board3.67ft²
Material cost352USD
Labor cost0USD
Total project cost352USD
Base boards40
With waste44

Buy 44 boards - estimated total $352.00.

  • You need 44 boards (8-foot 1x6) to cover your surface with a 10% waste allowance.
  • Net area after openings: 108.0 ft².
  • Material cost: $352.00 for 44 boards at $8.00 each.

Next stepBuy all boards in the same dye lot or mill run to avoid colour variation across the wall.

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