Fence Calculator
Calculate fencing materials needed
Measurements
What is Fence Calculator?
Estimate posts, rails, and boards for any fence project. Enter your perimeter length, post spacing, and board dimensions to get a full material list with quantities.
How to use
- Step 1 — Enter the total perimeter length and the number of gate openings.
- Step 2 — Set post spacing, rail count per section, and board width.
- Step 3 — Review the computed material list: number of posts, rails, and boards.
Result
Planning a 120-foot backyard fence with 8-foot post spacing and one 4-foot gate: the calculator shows you need 15 posts, 28 rails, and 180 pickets.
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