About this calculator
Mesh rolls, straining posts, line posts and gates for a diamond mesh boundary fence.
How it’s calculated
Straining posts sit at every end, corner and gate side. Line posts go at the set spacing along each run. Rolls = fence length × 1.03 ÷ 30 m, rounded up. Diamond mesh is sold in 30 m rolls, for example 1.8 m high with 75 mm openings (Cashbuild).
Worked example
With these inputs:
- Fence length
- 45 m
- Fence height
- 1.8 m
- End posts
- 2
- Corner posts
- 2
- Gates
- 1
- Line post spacing
- 3 m
the result is:
- Mesh rolls and posts
- 2 rolls
- Runs (end to end)
- 3
Tips from the trade
- Strain the mesh tight before tying it off. Slack mesh looks bad and sags.
- Set the straining posts in concrete and let it cure before straining.
Results are estimates for planning and pricing. Check quantities against your drawings, the manufacturer’s data and SANS 10400 (the National Building Regulations) and your local municipality before ordering.