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Construction & home

Fence Post Count Calculator

Estimate posts for a straight, open-ended fence run.

Editable waste and coverage assumptionsCheck supplier specifications

Project measurements

Runs on your device

MATERIAL ESTIMATE

Your result

Let’s calculate.

Use the Calculate button to see your result.

Review the method below for assumptions and conventions.

How to use this tool

  1. Enter length, maximum post spacing.
  2. Select Calculate to view the result.
  3. Check the method and assumptions below before using the result.

The method, explained

Sections = ceil(length/maximum spacing). Posts = sections + 1.

A WORKED EXAMPLE

Using length = 5 m, maximum post spacing = 2 m, the result is 4 posts. Change these example inputs to match your task; use the method above to check each step.

What to keep in mind

No gates, corners or shared end posts. Spacing is an input, not a structural recommendation. A material-quantity estimate, not a structural design or building-code check. Confirm site measurements, supplier coverage and waste before ordering.

Common questions

Which inputs does this calculation need?

Estimate posts for a straight, open-ended fence run. Enter length in m, maximum post spacing in m. The filled example is editable and is not a saved personal record.

How should I interpret the result?

No gates, corners or shared end posts. Spacing is an input, not a structural recommendation. A material-quantity estimate, not a structural design or building-code check. Confirm site measurements, supplier coverage and waste before ordering.

Methodology maintained by ClarityKit. How these tools are built and checked.