Calculate equal on-center post spacing, total posts, rails, pickets, and concrete bags for any straight or closed perimeter fence run.
On-center spacing across 12 equal sections
The standard distance between fence posts is 6 to 8 feet on-center. 8-foot spacing is the industry standard for privacy and picket fences using standard 8-foot 2x4 rails. In high-wind areas or for heavy materials, 6-foot spacing is recommended.
A good rule of thumb is to bury 1/3 to 1/2 of the total fence height into the ground (typically 2 to 3 feet deep for a 6-foot fence). Always ensure holes extend below your local winter frost line to prevent frost heaving.
For standard 4x4 posts in 8" to 10" diameter holes, you typically need 1.5 to 2 bags of 50 lb or 60 lb quick-setting concrete per post. Corner and gate posts supporting tension require 2.5 to 3 bags.
Yes! Toggle the Meters button at the top to calculate runs in meters, spacing in meters (e.g. 1.8m or 2.4m), and metric picket requirements.
