Posts & pickets
Fence Calculator
Lay out a straight fence run with evenly spaced sections and a realistic count for posts, rails, and pickets.
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How to calculate it
- Enter the total fence run excluding gates.
- Set maximum post spacing and rails per section.
- Enter board face width, gap, and material prices.
Frequently asked questions
Why is there one more post than section?+
A straight run needs a post at both ends. Four fence sections therefore require five posts.
Does this include gates?+
No. Subtract gate openings from the fence length and add gate posts, framing, hinges, and hardware separately.