Fence calculator
Estimate posts, rails, concrete, and pickets for wood, vinyl, or chain-link fences. Get an even post spacing layout and full materials list.
Inputs
10%
ExactConservative
Results
Total posts needed
—
posts
Post length (incl. burial)
—
ft per post
Horizontal rails
—
rails (2/section)
Concrete (80 lb bags)
—
bags
Pickets / boards
—
pcs (5.5" wide, privacy)
⚠ Posts = ⌈length ÷ spacing⌉ + 1. Burial depth = max(height ÷ 3, 2 ft). Rails per section: 3. Concrete: 2 × 80 lb bags per post (12″ hole, ~24″ deep). Includes 10% waste on pickets. Always check local building codes for height limits and permit requirements.
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