Metal Service Center Specializing in Grating, Expanded Metal, Perforated Metal, Rooftop Walkway Systems, Composite Floor Systems. Aluminum, Stainless & Carbon Steel. Etc. Metals, Inc. is one of the largest Metal Service Centers in North America, specializing in Expanded Metals, Perforated Metals, Bar Grating, Fiberglass Grating, Wire Cloth, and Grip Strut Safety Grating. These products are provided in Carbon Steel, Stainless Steel, Galvanized Steel, Aluminum, Bronze and Brass. They are sold in all quantities for both maintenance or production. We have also added more exciting inventoried products to better serve your applications. Among these are Traction Tread Flooring sheets and plank grating, Grip Strut Perf-O-Grip Plank Grating, Grate Lock Mezzanine Grating. Metals, Inc. has added other exciting items: Composite Block Products for flooring applications and Roof-Top Walkway systems. Metals, Inc. also has an extensive inventory of sheet and structural items.