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Shiplap Calculator

Construction
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Calculates the number of shiplap boards needed and the total cost for a given area, considering board width, reveal, and cost per board.

How To Use

How to use this calculator

Start with your values, or try a preset.

Step 1

Enter Wall Length (feet), Wall Height (feet), Board Width (inches), Reveal (inches), and Cost per Board ($) in the units shown.

Step 2

Read Boards Needed Heightwise, Effective Board Width (inches), Wall Area (square feet), Boards Needed Widthwise, Total Boards Needed (approximate), and Total Cost ($) in the results panel. Results update as you change the inputs.

Step 3

Choose a preset to load an example, then adjust the values for your situation.

Worked Examples

Example calculations

See the inputs and their calculated results.

Small Wall

Wall Length (feet): 8; Wall Height (feet): 8; Board Width (inches): 6; Reveal (inches): 0.25; Cost per Board ($): 8

Boards Needed Heightwise: 16; Effective Board Width (inches): 5.75; Wall Area (square feet): 64 square feet; Boards Needed Widthwise: 16.69565217; Total Boards Needed (approximate): 267.1304348; Total Cost ($): 2,137.043478 $

Medium Wall

Wall Length (feet): 12; Wall Height (feet): 8; Board Width (inches): 6; Reveal (inches): 0.25; Cost per Board ($): 8

Boards Needed Heightwise: 24; Effective Board Width (inches): 5.75; Wall Area (square feet): 96 square feet; Boards Needed Widthwise: 16.69565217; Total Boards Needed (approximate): 400.6956522; Total Cost ($): 3,205.565217 $

Large Wall

Wall Length (feet): 20; Wall Height (feet): 10; Board Width (inches): 8; Reveal (inches): 0.5; Cost per Board ($): 10

Boards Needed Heightwise: 30; Effective Board Width (inches): 7.5; Wall Area (square feet): 200 square feet; Boards Needed Widthwise: 16; Total Boards Needed (approximate): 480; Total Cost ($): 4,800 $

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