Free Fence Calculator
Posts, rails and panels for a fence run.
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Inputs
Result
Posts needed
16
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Short answer
Posts, rails and panels for a fence run.
What is the Fence Calculator?
Posts, rails and panels for a fence run.
How does the Fence Calculator work?
Enter the inputs above and read the result.
Formula
Variables
SpacingDistance between post centres
Explanation
Every run needs one more post than sections to close both ends.
Examples
Applications
Advantages
Limitations
Common mistakes
Tips
Related concepts
The Fence Calculator sits inside the Construction Calculators hub, in the structures & exteriors cluster. Framing, roofing, fencing and outdoor work. Understanding the terms below makes the output easier to interpret and easier to compare against neighbouring measures.
Practical use cases and industry applications
Understanding Fence
Posts, rails and panels for a fence run. Within construction calculators, fence belongs to the structures & exteriors cluster, where it shares terminology and assumptions with closely related tools.
Learning how fence is calculated
Every run needs one more post than sections to close both ends. Working through the variables one at a time — Spacing — makes the result reproducible by hand and easier to sanity-check.
Using fence to make a decision
Because outputs depend on the assumptions you enter, run more than one scenario before committing to a figure.
How fence compares with related measures
on-centre spacing, pitch, linear feet, span all describe adjacent aspects of structures & exteriors. Comparing this calculator's output against those measures — using the related tools listed on this page — prevents a single metric from being read in isolation.
Frequently asked questions
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