Get top-quality GI grating for industrial, commercial, and drainage applications. Strong, corrosion-resistant, and available in various sizes for maximum durability. GI Grating (Galvanized Iron Grating) is a durable, high-strength metal grid structure made from mild steel and coated with a layer of zinc through galvanization. This protective coating enhances its corrosion resistance, making it ideal for outdoor, industrial, and heavy-duty applications.