wire mesh is made without any welds. The galvanized finish of the wire is never compromised, making a strong, long lasting fence. These meshes are generally woven with heavy wire, resulting in a robust fence. The exceptiona are 20 gauge hexagonal netting, often used as a perimeter fence around a garden, and 17 gauge 1-1/2" mesh used as Apron fence around a training pen. Lifetime expectations are dependent on the gauge of wire used.