Building & DIY

Round Pen Calculator (Panels, Posts, Footing)

Plan a horse round pen by entering the diameter and panel length. You get the circumference, how many panels and posts you need, total rail length, footing volume, and a material cost.

How to use
  1. Enter the pen diameter and your panel length.
  2. Set the height, gate count, and material.
Estimates only, allow for waste and confirm against local building codes and supplier specs.
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Common questions

What size round pen do I need?

50 to 60 feet across is common for general training; 60 feet suits lunging and riding. Smaller pens crowd the horse on the circle.

How many panels for a 60-foot round pen?

About 16 panels if each is 12 feet long, since the circumference of a 60-foot circle is about 188 feet.

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