Wire fence calculator
Calculate how many posts and how many meters and rolls of plain or barbed wire to buy to fence a lot, pasture or farm.
How to usePosts and wire for a fence
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Wire fence calculator: what it is for
Enter the perimeter or the sides of a rectangular lot, the distance between posts, the number of strands, the roll size and the width of the gates. The calculator shows how many posts and rolls of wire to buy, with 5% extra for splices and corner bracing.
How to use
- Type the perimeter or the sides.
- Set the spacing and strands.
- See the posts and rolls of wire.
When to use it
- Fence a cattle pasture.
- Mark the boundary of a small farm.
- Price materials at the farm store.
Frequently asked questions
How far apart should fence posts be?
For barbed wire fences, 2 to 3 m (6 to 10 ft) between posts is common. For tensioned plain wire, posts can be farther apart, 5 to 10 m, with stays between them.
How many strands should I use?
For cattle, 4 to 5 strands of barbed wire is usual. For sheep and goats, more strands closer to the ground, or woven wire. For a simple boundary, 3 strands are usually enough.
How long is a roll?
The most common barbed wire rolls are 250 m or 500 m (about 1,320 ft). The calculator adds 5% extra for splices and ties.
Is it really free?
Yes, 100% free. No sign-up, no subscription and no usage limits. All Tools123 tools are free and run right in your browser.