Fence Post Calculator

Calculate the number of fence posts, rails, and concrete needed. Enter fence length and post spacing.

feet
feet
rails
Materials Needed
posts
Sections
Rails
Concrete (bags)

Fence Post Spacing

Standard fence post spacing is 6-8 feet. Use 6 feet for privacy fences and 8 feet for ranch/farm fences. Always add 1 to the number of sections for end posts.

Concrete per Post

Post SizeHole Size80-lb Bags
4×410" × 24"1-2 bags
6×612" × 30"3-4 bags