McNICHOLS® Expanded Metal is made by slitting and stretching metal sheets to create diamond-shaped openings. This practical and versatile product line forms screens, window security panels, machine guards and more. Decorative Expanded items are popular in shelving, signage and ceiling tile applications. Expanded Metal is supplied in a Standard (Raised) diamond pattern or a Flattened variety, and materials include Aluminum, Carbon Steel, Galvanized Steel and Stainless Steel. Expanded Metal Grating and Catwalk Grating are also part of our vast in-stock selection. Numerous gauges, opening sizes and sheet sizes provide endless options that will surely fit your project requirements!