Lists all installed in the Cabinet and their complete measurement data: height, length, width, weight. The total height of these devices will ultimately decide how many devices can be put into the Cabinet. Obviously, the higher the cabinet can be put into more equipment, but also in place. Of course, to make full use of the Cabinet's height is not the only consideration, the rear of the Cabinet has a lot of places you can use. This is to measure the depth of the Cabinet. Selects the darker of the Cabinet, you can keep two sets of equipment, back-to-back to install additional equipment. This way you can in a Cabinet mount two rows of equipment, a line from the Cabinet's front loading and unloading, another row of loading and unloading through the back door. The Cabinet should have adjustable vertical guide on the shelf, you can mount a different depth of equipment, while leaving the Cabinet for the device's depth and a minimum depth.

In calculating the finished cabinet space (with "U" as a unit), the must also consider the size of the room. You do not want to see filled soon after the cabinet still have to put into some of the equipment found. Once you buy the cabinets and installed, these devices more often there.

Therefore, as a basic principle, the Cabinet height to 20% to 30% for system expansion. These spaces have also improved the ventilation equipment. Fitted with bracket in the device does not need to take into account the width, because it is based on the width of the Cabinet. But cannot support servers and other peripherals, width not be ignored. The gross weight because the devices are often severe, so choose a loading over 800 kg of Cabinet, that is, do you want to select the force structure of good, strong cabinet. Inside, the Cabinet decided to choose equipment weight of carriage is standard or exacerbation, also decided to select other attachments. Selected cannot be 100% compatible with all servers of the Cabinet, it is necessary to meet or exceed all OEM manufacturers of third class supports the standard.