Fence Post Spacing Calculator

Calculate how many fence posts you need and the exact spacing between them for any fence run.

ft
ft

How to Use This Calculator

How to Use

  1. Enter the total length of your fence run.
  2. Enter the maximum spacing you want between posts (centre to centre).
  3. The calculator works out how many posts you need and the exact even spacing.

Tips

  • Timber panel fences usually use posts every 6 ft (1.83 m) to suit standard panels.
  • Post-and-rail or wire fences can space posts up to 8–10 ft (2.4–3 m) apart.
  • Always include the end post – a 30 ft run at 6 ft spacing needs 6 posts, not 5.

Common Questions

How far apart should fence posts be?

For panel fencing, posts are spaced to suit the panel width – typically 6 ft (1.83 m) centre to centre. For rail or wire fencing, 8–10 ft (2.4–3 m) is common.

How many posts do I need for a 30 ft fence?

At 6 ft spacing you need 6 posts (5 sections plus the end post). This calculator adds the end post automatically.

Should I measure centre to centre?

Yes – fence post spacing is measured from the centre of one post to the centre of the next.

Related Calculators

Gravel

Calculate the volume and weight of gravel needed for driveways, paths, and landscaping.

Open

Mulch

Calculate the volume of mulch needed for garden beds, paths, and landscaping areas.

Open

Topsoil

Calculate the volume of topsoil needed for raised beds, lawns, and garden projects.

Open