You'll need about
14
posts
13
sections
39
rails (3/section)
219
pickets
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How this is calculated
sections = length ÷ post spacing (rounded up) · posts = sections + 1 · rails = 3 per section (typical for a 6-ft privacy fence) · pickets = length in inches ÷ 5.5 (nominal picket width, no gap). Add gate hardware and concrete — about two bags per post — separately.
This is a planning estimate — always confirm against your supplier and the specifics of the job before ordering.
Fence calculator: FAQ
How many fence posts do I need?
Divide the fence length by your post spacing and add one for the end post. A 100 ft fence with 8 ft spacing needs 13 sections and 14 posts.
How far apart should fence posts be?
6 to 8 feet on center is standard. Closer spacing (6 ft) makes a stronger fence in windy areas or for tall privacy panels.
How many pickets do I need per foot?
For nominal 5.5-inch pickets butted with no gap, about 2.2 pickets per foot. Add a gap and you need fewer; overlap (board-on-board) and you need more.
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