Trench mesh is a reinforcing mesh typically used in residential and industrial buildings to reinforce concrete footings and beams. Supplied in sheet sizes 6m x 0.2m – 6m x 0.5m and available in 3, 4 & 5 wire meshes (3-Bar, 4-Bar and 5-Bar), as well as 8, 11 and 12mm (12mm by order only) wires.-Consult with your concretor or engineer before choosing the mesh best suited for your application, as using the wrong mesh could potentially result in failure to your concrete structure.