Dongjie Metals offers Square Hole Expanded Metal Mesh that is a versatile and economical product made from a high-quality sheet. Our Decorative Perforated Metal Mesh is available in many sizes, openings, and material types. You have the option to choose from many materials, such as aluminum, carbon steel, galvanized steel or stainless steel. This metal sheet is uniformly slit and stretched, forming diamond-shaped openings in the sheet that allow for the passage of light, air, heat, and sound. The strands and bonds of the diamonds in the expanded metal sheet add strength and rigidity. Since no metal is lost in the expanding process, expanded metal is a cost-effective alternative to perforated metal.