Fence Calculator

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Composite 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.

Composite fence systems come in fixed section widths. Use the width from the product sheet.

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: 100 ft with 8 ft sections and 1 gate takes 12 panels and 14 posts.

Panels and posts at a glance

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

LengthPanelsPosts
50 ft68
100 ft1214
150 ft1921
200 ft2527
300 ft3739

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.