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Board On Board Fence Calculator

Result

Calculated result 0.8333333333 Based on the values entered.
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Board On Board Fence Calculator Calculate materials for a board-on-board (shadowbox) privacy fence. — free online calculator.

Formula

Net coverage per board = width − overlap; Boards = 2 × fence length / net coverage
  • Board On Board Fence Calculator calculates its result from Width, Overlap, Net Coverage, Fence Length. It uses the formula Net coverage per board = width − overlap; Boards = 2 × fence length / net coverage. Change any input to recalculate the result instantly.
  • The main inputs are Width, Overlap, Net Coverage, Fence Length. Enter them in the units and format shown in the calculator.
  • Keep measurements and project assumptions consistent before comparing or combining values.
  • Changing any input above recalculates the result with the same calculation engine used by this page.

Example: Board On Board Fence

Inputs
  • Width: 2
  • Overlap: 3
  • Net Coverage: 12
  • Fence Length: 5

Using Width = 2, Overlap = 3, Net Coverage = 12, Fence Length = 5, the calculated result is 0.8333333333.

Sample result: Calculating…

Frequently asked questions

What does the Board On Board Fence calculate?

Board On Board Fence Calculator Calculate materials for a board-on-board (shadowbox) privacy fence. — free online calculator.

Which values should I enter?

Enter Width, Overlap, Net Coverage, Fence Length using the units and format shown beside each field.

What formula does this calculator use?

The calculator uses the following relationship: Net coverage per board = width − overlap; Boards = 2 × fence length / net coverage.

Why might my result differ from another source?

Results can differ when another source uses different units, rounding rules, conventions or assumptions. Compare the inputs and definitions before comparing results.

Does the result update automatically?

Yes. Changing an input updates the result using the same calculation engine shown on this page.

Page information

Updated: October 7, 2026