Dimensions
Rack depth: 1000 vs 1200 vs 1400 mm
Guide · reviewed 2026-07-04
Choose rack depth by your deepest device plus rear clearance for cabling and PDUs. 1000 mm suits network and shallow gear, 1200 mm is the general-purpose default, and 1400 mm is for deep servers, rear-mounted PDUs and heavy cabling.
What depth actually has to fit
A cabinet's external depth has to accommodate the front door, the equipment itself, rear cabling and vertical PDUs, and the rear door. Depth-adjustable mounting rails let you slide the equipment plane forward or back within that envelope, but the external depth sets the ceiling.
Choosing by use case
| 1000 mm | Network switches, patch panels, shallow appliances |
|---|---|
| 1200 mm | General servers: the most common choice |
| 1400 mm | Deep GPU/HPC servers, rear PDUs, dense cabling |
If you are unsure, 1200 mm covers the majority of standard server deployments. Move to 1400 mm when you run deep chassis, need generous rear cable management, or mount PDUs and cooling at the back.