Solid, Versatile, and Premium Quality Made; Organize and Secure your Mount Equipment. This premium quality Wheeled movement 4 post open rack is designed to accommodate different installations for equipment from different manufactures. Installation depth 24in, This rack is made of Cold Rolled Steel to provide you with a maximum load of 1100LB. Available in variety heights and depth. Screws and cage nuts are included. Package contains 3 pairs of supporting L rails(22").