Fence Estimate Calculator

Break down your fencing project into posts, rails, and pickets for a complete material shopping list.

Project Geometry

Unit System

Total length (ft)

Post Spacing (ft)

Picket Width (in)

Picket Gap (in)

Material List

Ready for materials?

Provide your fence length and spacing details to generate a structural material count.

Overview

Building a fence involves three main layers: the vertical posts that provide structure, the horizontal rails that span the posts, and the pickets that provide coverage. This calculator helps you determine the exact quantity of each component, assuming a standard 3-rail design for maximum picket stability.

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Pro Tips

Always round your post count up to the next whole number; you can't install half a post.
If you're using pre-made panels, your spacing is fixed by the panel width (usually 8ft).
Include a 10% waste factor for pickets to account for warped, split, or damaged boards in the bundle.

Fun Facts

"Standard post spacing is usually 6 or 8 feet (1.8m or 2.4m) to match standard dimensional lumber lengths."
"Post holes should be at least 1/3 the total length of the post for structural integrity."
"Most privacy fences use 3 rails (top, middle, bottom) to prevent picket bowing or warping over time."

Formula: Posts = (L / S) + 1; Pickets = (L × 12) / (W + G)

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