4x4 Orange Wire Back Silt Fence Wire construction fencing comes in two different weights, 70 grams and 100 gram with a height of 3 feet. Wire silt fencing can come in lengths ranging from 100 feet to 330 feet and sizes of 14.5 and 12.5. The wire mesh with fabric fence is used for erosion and sediment control on locations such as, construction sites, roadsides, and dredging applications. They are made from a woven polypropylene material that allows water to flow through and trap any sediment, or debris. This silt fencing should be checked periodically for damaged and cleaned to reduce chance of build-ups. You could also find other construction materials in these categories, G.i. Wire, Electro Galvanized Iron Wire, Galvanized Welded Wire Mesh, Galvanized Binding Wire, Metal Crimped Wire Filter. Material: Galvanized Wire & 100% PP Fabric Hole Size: 1"x2", 2"x4", 4"x4", 6"x6" Width: 2', 3', 4' Length: 50', 100', 330', etc…