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Construction Calculators

Wood Fence Pickets Calculator

Verified formula Updated Jun 2026 Private — runs on your device

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m
m
m
Verified formula Private

Pickets needed

134

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Wood Fence Pickets Calculator

The Wood Fence Pickets Calculator works out your pickets needed in an instant. Enter fence length, picket width and gap between pickets and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the fence length.
  2. Enter the picket width.
  3. Enter the gap between pickets.
  4. Read off your pickets needed — the calculator updates automatically, with no button to press.

Worked example

For example, with fence length of 20 m, picket width of 0.1 m and gap between pickets of 0.05 m, the pickets needed is 134.

Inputs used
Fence length 20 m
Picket width 0.1 m
Gap between pickets 0.05 m
Results
Pickets needed 134

Results are estimates for educational use, not professional advice.

Frequently asked questions

Divide the fence length by the picket width plus the gap, then round up. A 20 m fence with 0.1 m pickets and 0.05 m gaps needs 134 pickets.

Each picket plus its gap forms a repeating unit, so the spacing must be added to the picket width.

Set the gap to zero for a solid privacy fence, and the count rises accordingly.

Yes. Add a few extra for cuts, defects and future repairs.

Enter the fence length. Enter the picket width. Enter the gap between pickets. Read off your pickets needed — the calculator updates automatically, with no button to press.

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