Fence Panel Calculator

Calculate how many fence panels, posts and gravel boards you need for your fence line.

m
m
mm

How to Use This Calculator

How to Use

  1. Enter the total length of your fence line.
  2. Enter the panel width – standard UK panels are 1.83 m (6 ft) wide.
  3. Enter the post width (concrete or timber posts are usually 100 mm / 4 in).
  4. Read off the number of panels, posts and gravel boards required.

Tips

  • You always need one more post than the number of panels.
  • Gravel boards protect panels from ground moisture – allow one per panel.
  • Order a spare panel for awkward runs or future repairs.

Common Questions

How many fence panels do I need?

Divide the fence length by the panel width plus one post width (the bay width), then round up. This calculator does it automatically and adds the extra end post.

What size are standard fence panels?

In the UK, standard fence panels are 1.83 m (6 ft) wide and come in heights from 0.9 m to 1.83 m. Posts are typically 100 mm (4 in) square.

How many posts for 5 panels?

You need 6 posts for 5 panels – one between each panel plus one at each end.

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