4x8 Expanded Metal 4ftx8ft expanded metal mesh is a standard steel sheet mesh that is cold rolled and then expanded to provide a smooth, flat and level sheet. The flattening process reduces the original thickness of the parent material. What is 4x8 Expanded Metal Sheet? Gaite Wire Mesh produces expanded metal mesh made from carbon steel that is cut and stretched to create diamond-shaped openings. Lightweight and material-efficient, with light, liquids, sound and air passing freely through the steel mesh, this product also provides the perfect finishing touch to a house, building or window. Standard sizes are 4 ft. x 8 ft. Coated expanded metal can be galvanized, anodized, powder coated, painted, or plated to suit a variety of applications. If you require non-standard panels and specialty materials, please contact us with the details below.