There are different types of racks available for all types of equipment. A rack requires at least two rails for mounting equipment to the rack. Racks with two rails are commonly used for mounting network patch panels because they do not require a large depth. For other types of equipment, you will want to look at racks with four rails. When you have compact equipment with a width of 19 inches or less, you can look at using 19 inch rack rails.
Your Available Space Will Determine the Height of 19 Inch Rack Rails
Selecting the height of 19 inch rack rails to use will depend on your available space. If you are able to use the full height in a room, from the floor to the ceiling, you can look at taller racks. However, if you are limited in space, or only have a few pieces of equipment to install in the rack, then you will want to consider using half height racks.