Ribbed Reinforcing Trench Mesh is made specifically for use in residential footing trenches, as well as rock walls, brick walls and house footings. Made from grade D500L ribbed reinforcing wire, Trench Mesh is made using a variety of longitudinal wires up to 12mm diameter. Trench Mesh sheets are made in 6m lengths, with widths varying depending on the number of longitudinal wires. Cross wires are ?at 300mm centres. The longitudinal wires are at 100mm centres. L11TM300 refers to Longitudinal diameter mm = 11, Width mm = 300.