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Construction Calculators

Fence Panels Calculator

Verified formula Updated Jun 2026 Private — runs on your device

Enter details
m
m
Verified formula Private

Panels needed

13

Posts needed
14

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

How to use the Fence Panels Calculator

The Fence Panels Calculator works out your panels needed, along with 1 related figure in an instant. Enter fence length and panel width 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 panel width.
  3. Read off your panels needed, together with posts needed — the calculator updates automatically, with no button to press.

Worked example

For example, with fence length of 30 m and panel width of 2.4 m, the panels needed is 13.

Inputs used
Fence length 30 m
Panel width 2.4 m
Results
Panels needed 13
Posts needed 14

Results are estimates for educational use, not professional advice.

Frequently asked questions

Divide the fence length by the panel width and round up. A 30 m fence with 2.4 m panels needs 13 panels.

Usually one more than the number of panels, since each panel sits between two posts.

Round up and cut the last panel to fit, or adjust post spacing slightly.

A spare panel and post help with damage and future repairs.

Enter the fence length. Enter the panel width. Read off your panels needed, together with posts needed — the calculator updates automatically, with no button to press.

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