Independent buying guides for bonsai

Bonsai Wire Gauge Chart

Bonsai Nest · bonsainest.com · reviewed September 13, 2026

Aluminium wire gauges by branch size
1.0mmvery fine twigs and small shoots up to about 3mm thick
1.5mmthin branches around 4-5mm
2.0mmbranches around 6mm, the most commonly used general-purpose gauge
2.5mmbranches around 7-8mm
3.0mmbranches around 9mm and light trunk work on small trees
4.0mm and upthick branches and trunks

Typical values for general guidance. Always check the manufacturer's specification for your exact product.

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Bonsai Wire Gauge Chart

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