Construction

Round Pen Calculator

Find panels needed for a round pen.

Diameter

Panel length

Calculated Output

Panels needed 4

Circumference 3.142

Enclosed area 0.7854

Formula: circumference = π × diameter ; panels = circumference ÷ panel length

Step-by-Step Breakdown

1. Values used:

2. Diameter = 1

3. Panel length = 1

5. Panels needed = 4

6. Circumference = 3.142

7. Enclosed area = 0.7854

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The math behind it

circumference = π × diameter; panels = circumference ÷ panel length (rounded up).

60 ft round pen → 16 panels.

Gate?

Swap one panel for a gate of the same width.