FNC

Fence Calculator

Posts, rails and pickets for a straight run of fence.

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Result…

Units
m
m
m

Centre to centre; 1.8–2.4 m (6–8 ft) is usual.

mm
mm

0 for a closed-board fence.

 

…

How it's calculated

Sections = length ÷ post spacing, rounded up
Posts = sections + 1
Rails = sections × rails per section
Pickets = length ÷ (picket width + gap), rounded up

Lists the posts, rails and pickets for one straight run of fence. Each corner and gate needs its own posts, so add those. Posts are usually set about a third of their above-ground height into the ground, in concrete.

Your numbers, step by step

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