National 13 Ga. Expanded Steel Sheet Stock is a versatile flattened steel sheet i for use in machinery guards, screen door protectors, and other protective applications. Crafted from durable 13 gauge plain steel, each sheet features a 3/4 inch grid pattern that provides strength and ventilation. The sheets come individually wrapped in a corrugated wrapper to ensure protection from damage during handling and transport. Available in various sizes, this steel stock reliable performance with a plain finish in a gray color family, making it suitable for a wide range of industrial and commercial uses. Model Number: 4075BC