Fence Calculator

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Horse Fence Calculator

Count fence panels and posts for straight runs or a round pen.

Units
Layout
ft
ft
ft
A fence along three sides of a yard has 3.
sides
Does the fence go all the way round?
gates
ft

Your result

Enter your numbers and press the button. Your result appears here.

Horse fences should be easy to see. Post and board or rail fences are the usual choice.

How panels are counted

Panels = run length ÷ panel width, rounded up. Posts = panels + 1 on each straight run. A round pen needs circumference ÷ panel length.

Example: 600 ft with 8 ft sections and 1 gate takes 76 panels and 77 posts.

Panels and posts at a glance

Worked out with the same settings as the calculator above, changing only the length.

LengthPanelsPosts
300 ft3637
600 ft7677
900 ft112113
1,200 ft152153

Common questions

How many posts for fence panels?

One more than the number of panels on each straight run, plus extra posts at each gate.

What if the last panel does not fit?

Cut the last panel on each run to fit, or adjust post positions so the cut panel sits somewhere less visible.