Fence Calculator
Estimate fence posts, rails, pickets, and total cost
Total linear feet
Distance between posts
Height of the fence
Width of each picket
Gap between pickets
Posts Needed
—
posts
Rails Needed
—
rails
Pickets Needed
—
pickets
Concrete for Posts
—
bags
Estimated Cost
—
USD
Disclaimer: Results are estimates based on standard formulas. Not a substitute for professional advice from a licensed contractor, engineer, or architect. Verify all calculations before making purchasing or construction decisions.
How to Use This Calculator
Our fence calculator helps you determine posts, rails, pickets, and concrete needed.
- Measure total fence line length
- Decide post spacing
- Choose fence height
- Enter specifications
- Add 5-10% extra
AI Insights
Smart analysis for your project
Smart Estimates
Our AI cross-references material costs, regional pricing, and project complexity for more accurate estimates.
Waste Optimization
AI-calculated waste factors based on project type, not flat percentages. Saves 5-15% on material costs.
Best Practices
Recommendations derived from building codes, contractor data, and thousands of completed projects.
Calculation Formula
Posts = (Length / Spacing) + 1
Rails = (Posts - 1) x 2
Pickets = Length / ((PicketWidth + Spacing) / 12)
Frequently Asked Questions
How far apart should fence posts be?
6-8 ft for wood fences, 10 ft for chain link. Use closer spacing for tall fences or high wind.
How much does a wood fence cost?
$15-$45 per linear foot installed. A 100-foot fence costs $1,500-$4,500. DIY saves 40-50%.