Rack Shelves available made from 1.5mm EG Steel. Our industrial shelving has a 50lb capacity. At Cables For Less, we offer vented and non-vented storage shelves also sliding or adjustable. Our wire shelving comes in 1U, 2U, and 3U. U is a measurement that signifies the height of the shelf, U=1.75 inches. Which means a 3U size rack is 5.25”. Included with the metal shelving racks are washers, screws, and cage nuts to secure in the housing. Keep your server rack cabinet enclosure easily accessible, clutter-free and organized with our rack shelf today!