Fence Calculator
Estimate posts, fence sections, boards, rails, concrete bags, and material cost for privacy, semi-privacy, and picket fence builds.
Posts needed
18
Sections
15
Boards / pickets
254
Rail pieces
45
Rail linear feet
360 ft
Material cost estimator
Adjust local pricing to estimate posts, boards, rails, and concrete.
Posts
$324.00
Boards
$1,143.00
Rails
$405.00
Concrete
$126.00
Estimated materials total
$1,998.00
Project summary
Total run: 120.0 ft
Fence type: Privacy
Height: 6.0 ft
Gate opening total: 4.0 ft
Fence run excluding gates: 116.0 ft
Concrete bags: 18
This is a planning estimate. Actual post counts, gate framing, concrete needs, and waste can vary by layout, corner posts, terrain, and local building code.
How to Use
- Enter your total fence length in feet or meters.
- Pick a common fence height, post spacing, board width, rail count, and fence style.
- Add gate width and the number of gates so the calculator can subtract the openings.
- Review the estimated posts, sections, rails, boards, and material cost breakdown instantly.
Frequently Asked Questions
How far apart should fence posts be?
Most wood fence posts are spaced about 6 to 8 feet apart. Shorter spacing can make the fence stronger, while longer spacing may reduce material cost but can increase rail sag on long runs.
How many rails does a fence need?
Many 4 foot fences use 2 rails, while 6 foot privacy fences often use 3 rails for better support. Heavier boards, taller fences, and windy areas may require more framing depending on local code.
How do I estimate the number of pickets or boards?
The estimate depends on the board width and the gap between boards. Privacy fences use little to no gap, while picket fences usually have visible spacing. This calculator adjusts the board count based on your selected fence style.
Does this include waste and corner posts?
Not fully. This tool is designed as a planning estimate. Real projects may need extra boards for waste, special posts for corners or ends, and more concrete depending on soil conditions and frost depth.