How far apart should fence posts be?

Space posts 6–8 ft on center; closer spacing adds strength in windy areas.

How many rails per section?

Use two rails for fences under 5 ft and three rails for taller privacy fences.

Enter the fence length, post spacing, and picket sizing to get the number of posts, rails, and pickets needed.

Estimates only. Round up and buy a little extra to account for waste, spills, and breakage.

Enter the fence length, post spacing, and picket sizing to get the number of posts, rails, and pickets needed.

Enter the fence length in ft.
Enter the post spacing in ft.
Enter the rails per section.
Enter the picket width in in.
Enter the gap between pickets in in.
Optionally add a price to estimate the total project cost.
Read your quantities instantly — no sign-up, and you can print the estimate to take to the supplier.

Using the example values above, the fence calculator returns 14 (posts). Change any field to match your own project and the numbers update instantly.

Sections = length ÷ post spacing. Posts = sections + 1. Pickets = (length × 12) ÷ (picket width + gap).

How far apart should fence posts be?: Space posts 6–8 ft on center; closer spacing adds strength in windy areas.
How many rails per section?: Use two rails for fences under 5 ft and three rails for taller privacy fences.

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