Expanded Metal Sheets and Grating Supplier

Chatham Steel offers a large inventory of expanded metal sheet and grating for a wide variety of construction needs. Raised expanded metal is manufactured by slitting and stretching a sheet or roll of raw metal stock. Lighter in weight compared to standard bar gratings, raised expanded metal grating is measured by the nominal size of diamond opening, short-way X thickness, and X width and X length.

Types and Sizes of Expanded Metal Sheets and Grating 

Expanded metal sheet is available in several lb. types, and the numbers indicate lbs/sf., or pounds per square foot. Chatham Steel carries 3 lb. expanded metal grating, 4 lb. expanded metal grating, 6.25 lb. expanded metal grating, and 7 lb. expanded metal grating. 3 lb. and 4 lb. expanded metal grating are the two most widely used gauges of expanded metal. Expanded metal sheets come in various widths and lengths. 

Flat expanded metal is raised expanded metal that has been cold flattened, leaving a smooth, flat surface with diamond-shaped openings. The sheet length is usually elongated about five percent. Once flattened, the expanded sheet is sent through a leveler to maintain its flatness. Both raised and flat expanded metal grating products are available in many material options, such as carbon steel, galvanized steel, aluminum, and stainless steel. 

Expanded carbon steel is widely used throughout all types of industrial applications. Galvanized expanded metal is coated with a layer of zinc for added wear and corrosion resistance. Stainless steel and aluminum expanded metal products are additional options where corrosion resistance is a priority. Heavy-duty expanded metal grating has performed extremely well in many industrial environments because of its excellent strength-to-weight ratio, see-through visibility, ease of maintenance, and an open mesh that allows liquids to drain through and gasses to ventilate effectively.

At Chatham Steel, we recognize the significance of offering a wide range of steel products to accommodate the unique demands of our customers. Our flat expanded metal, raised expanded metal, and expanded metal sheets provide versatility and strength for a multitude of applications, from architectural design and decorative elements to filtration systems and security solutions. Galvanized expanded metal is an excellent choice for projects exposed to the elements.

For structural support and secure footing, our expanded metal grating options, including 3 lb, 4 lb, 6.25 lb, and 7 lb. expanded metal grating, offer durability and load-bearing capacity. Chatham Steel is committed to delivering top-notch steel products that combine quality, lightweight design, and customization to ensure your projects are built to last and perform at their best. As Chatham Steel’s Quality Management System states – Our policy and procedures ensure confidence to our customers that all materials and services provided are certified, traceable and meet the applicable quality specifications.

Chatham Steel has been serving their clients with high quality structural steel products and advanced, in-house precision processing since 1915, and has established a long-standing reputation for excellence and reliability. Chatham maintains five independently certified locations in the southeast United States, with clients in Georgia, Alabama, North and South Carolina, Mississippi, Tennessee, Virginia, and Florida. Whether your ongoing steel projects are large or small, Chatham Steel is ready to provide an accurate, fast turnaround time and reliable on-time delivery. Call us today.

Expanded Stainless Sheet Product Buyer’s Guide

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Expanded Stainless Sheets