The GridLine stainless steel grid system is our high- end heavy duty matting system. Constructed from either 304 or 316 grade stainless steel, the GridLine features a clean satin finish giving it a high-tech modern appearance. The contemporary design is strong and can handle a wheel load capacity of up to 500 lbs. per rolling wheel load. GridLine is a sustainable choice that uses high-quality materials to create exceptional durability. The GridLine is the best architectural grid at removing debris while also providing a permanent and integrated solution to fighting against tracked in dirt and water.