basic

Fence Posts Needed Calculator

Posts = ceil(perimeter / spacing) + corners + extras.

Compute the number of fence posts needed for a rectangular yard from the perimeter, the desired post spacing, and the number of corners and gates. Includes a 5 % spare allowance.

Marcus Laurent By Marcus Laurent
Published Last reviewed 1 min read

Inputs

ft
ft

Results

Enter values and click Calculate to see results.
Was this helpful?

How to use this calculator

  1. Fill in the inputs above using the units you already have.
  2. Values update automatically as you type — no submit button needed.
  3. Hover any result row for the underlying formula and intermediate values.

Formula

Posts = ceil(perimeter / spacing) + 1 + 2·gates; ×1.05 spare.

In depth

Compute the number of fence posts needed for a rectangular yard from the perimeter, the desired post spacing, and the number of corners and gates. Includes a 5 % spare allowance.