Shiplap Calculator
Construction & Home ImprovementCalculate the number of shiplap boards needed to cover a wall or ceiling area.
Boards Needed
Number of shiplap boards needed to cover the project area.
Project Area
96.0
Wall or ceiling area to be covered, after subtracting openings.
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Odeh Ahwal0people find this calculator helpful
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Construction & Home Improvement calculators
Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Construction & Home Improvement calculators
Frequently Asked Questions
How is board coverage calculated?
Each board covers its width, converted to feet, times its length, giving the area one board covers. The total project area, plus the waste factor, is divided by that per-board coverage to get the board count.
Does board width include the overlap or reveal?
No, this uses the full board width for simplicity. For shiplap with a visible reveal gap between boards, the true covered width is slightly less than the full board width, so consider using that smaller effective width instead for a more precise count.
What waste factor should I use for a ceiling?
A ceiling installation often needs a slightly higher waste factor than a wall, commonly 10 to 15 percent, due to more cutting around fixtures and edges.
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