Fence Calculator
Estimate fence posts, panels and footing concrete for a new fence.
Posts needed
17
- Panels
- 15
- With waste
- 16 panels
- Footing concrete (est.)
- 26.7 ft³
How we calculate this
Panels = total fence length ÷ post spacing (rounded up). Posts = panels + 1, plus one extra post per gate opening. Each post footing is estimated at a standard 12" diameter × 2 ft deep hole.
Example
Measuring tips
Measure the total perimeter or run length, accounting for corners separately if your fence changes direction. Standard post spacing is 6–8 ft depending on panel size and fence style.
Common mistakes
- Forgetting to add extra posts for gate openings.
- Not accounting for slope, which can require stepped panels or extra posts.
- Skipping footing concrete from the material list.
Frequently asked questions
How far apart should fence posts be?
6–8 ft is standard for most residential wood and vinyl fence panels — check your panel size for the exact spacing.
How much concrete do I need per fence post?
A standard 12" diameter, 2 ft deep footing uses roughly 1.57 cubic feet of concrete per post — see the Concrete Calculator for footings of other sizes.
Related calculators
Estimates are provided for planning purposes. Actual material requirements may vary based on supplier specifications, compaction, site conditions, installation method, waste, and local code.