There are four main types of equipment racks; these include Commercial racks, Heavy-Duty racks, Industrial racks, NEMA racks (Weather), or Military racks (Shock, vibration and Weather). The following link provides Equipment Rack Manufacturers
Standard Rack Height;; 21" to 84", in any 1 3/4" increments
Standard Rack (outside) Depth;; 17", 24", 29" and 36"
Standard Panel Widths: 482.6mm (19 inch), 609.6mm, 762.0mm (per EIA 310)
Standard Panel Widths: 19", 24", 30", adapters are available for mounting 23" equipment
EIA-310 does not specify rack depth. So be sure to specify or know the internal depth, usable depth and overall depth.
Height is also given in 'U', 1U = 44.45mm, 2U = 88.90mm
Rack Door Options;
Rack Top Panel Options;
Rack Side Panel Options;
Be sure to consider the other options available when specifying an equipment rack;
Equipment Rack Grounding next page in the section.
Also refer to the page covering Rack Equipment Installation for recommendations on how to install equipment within an equipment rack.
Index page; How To Specify a Equipment Chassis
Design Hint: There also another large group of options or accessories that can be obtained for equipment rack relating to cable management. As in devices that either attach to the inside rack walls or rails to control cable flow;
Horizontal Cable Management or Vertical Cable Management