About FenceCalculate.com
Free fence material estimator for homeowners and DIYers.
Why we built this
Planning a fence project shouldn't require a contractor visit or a spreadsheet. We built FenceCalculate.com because most online fence calculators are buried inside contractor lead-generation pages, require account signups, or are slow and hard to use on a phone — which is exactly where most people are when they're standing in their backyard measuring.
What it does
Enter your fence length, style, height, and post spacing — and instantly get the exact quantities of posts, rails, pickets or boards, and concrete bags you need. Add a cost estimator and export a shopping list to take to the hardware store.
The calculator supports:
- Wood picket fences
- Privacy fences (board-on-board and solid)
- Split rail fences (2-rail and 3-rail)
- Chain link fences
- Multi-section yards (L-shaped, U-shaped)
- Single and double gates
- Imperial and metric units
- Optional cost estimation with tax
- CSV export and print
How accurate is it?
The calculator uses standard residential fencing formulas. Picket and board counts include a 10% waste allowance. Concrete bags are estimated from standard post hole dimensions. All formulas are shown transparently in the "How We Calculated This" section so you can verify the math yourself.
Results are planning estimates — not replacements for on-site measurements by a contractor. Actual material needs may differ based on terrain, slopes, supplier board widths, and local building codes.
Privacy
This tool runs entirely in your browser. The numbers you enter are never sent to a server. We do not collect, store, or sell any personal data. Full privacy policy →
Methodology
Key formulas used:
- Posts: floor(length ÷ post spacing) + 1 + gate posts
- Rails: bays × rails per style (2–3)
- Pickets: (length × 12") ÷ (picket width + gap) × 1.10 waste
- Concrete: hole volume (π × r² × depth) ÷ 0.6 cu ft per 80 lb bag