Fencing Calculator

Free

Fencing · Posts, rails, pickets and concrete · default waste 5%

Enter your measurements

Numbers start at typical defaults — change anything. Every result states the inputs and assumptions used.

Fence length(ft)

Fence height(ft)

Fence type

Gates

Post spacing(ft)

Rails per bay

Picket width(in)

Picket gap(in)

Waste factor(%)

Applied once to each material quantity, then rounded up to the orderable increment.

Product assumptions — editable6

Sheet sizes, coverage rates, bundle counts, bag yield and similar come from the product you are buying. Change any of them to match your supplier — whatever you set is shown again with the result.

Post stock length(ft)

Rail stock length(ft)

Chain link fabric per roll(linear ft)

Concrete bags per post(bags)

Two 60 lb bags per post is a common allowance in normal soil.

Fasteners per picket

Two fasteners per rail crossing — 6 for a three-rail fence.

Chain link ties per post

Enter your measurements and press "Calculate materials" to see the calculated quantity, waste-adjusted quantity and recommended order quantity.

What this calculator does

•Posts = ⌈fence length ÷ post spacing⌉ + 1, plus 1 extra post per gate for the hinge/latch pair
•Wood: rail linear ft = fence length × rails per bay; rails = rail linear ft ÷ rail stock length
•Wood pickets = fence length × (12 ÷ (picket width + gap))
•Panels = fence length ÷ panel width (post spacing sets panel width for panel systems)
•Chain link: fabric rolls = fence length ÷ roll length; ties = posts × ties per post
•Concrete = posts × bags per post

Deterministic by design: no AI, no lookups, no network calls — the same inputs always give the same numbers. Product values such as coverage rates and bundle counts are editable and shown with the result.