Home Improvement

Fence Calculator

Calculate how many fence posts and panels you need.

Enter your total fence line length and post spacing to calculate exactly how many posts and panels to buy.

Enter a valid length.

Posts Needed

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Panels Needed

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How to Use This Tool

  1. Enter your total fence line length.
  2. Enter your post spacing and panel width.
  3. Click Calculate to see posts and panels needed.

Fence Material Formulas

Posts Needed = (Total Length ÷ Post Spacing) + 1

Panels Needed = Total Length ÷ Panel Width (rounded up)

Why Add 1 to the Post Count

A fence line needs one more post than the number of spacing intervals — think of a fence with 3 equal sections needing 4 posts (one at each end and two in between).

Common Post Spacing

8 feet is a very common spacing for wood privacy fences, matching standard 8-foot panel widths. Chain-link and other fence types may use different standard spacings — check your specific fencing system's requirements.

Corner and Gate Posts

This calculator estimates line posts for a straight run. Corners typically need additional heavier-duty posts, and gates require their own dedicated posts — factor these in separately based on your yard's layout.

Frequently Asked Questions

Does this account for corners?

No, this calculates posts for straight fence runs. Add extra posts for each corner in your layout, since corners typically need their own dedicated post.

What spacing should I use for a chain-link fence?

Chain-link fences commonly use 10-foot post spacing, different from the 8-foot standard for wood privacy panels — check your specific fencing system's manufacturer recommendations.

This calculator is provided for general informational and estimation purposes only. Results should not be treated as professional financial, tax, legal, medical, or engineering advice. Always verify critical calculations with a qualified professional or official source before making decisions.