The Raxxess 22U Pull-Out Rack is enclosure that you can pull forward to gain access to its rear side. It allows you to install a serviceable rack of gear in tight spaces, such as in a closet or under a desk. It comes with a rear rail cable management system with tie bars, so you can keep your wiring organized and out of the way of the sliding rack.
It's constructed with 16-gauge black powder-coated steel, with 11-gauge tapped rack rails. Besides this 22U version, there are several other heights available so you can custom fit racks into places with limited vertical space.