10 inch or 19 inch rack?
Both use the same rack units. The difference is width, and that decides what gear fits and where the rack can live.
Most mini PCs, Macs, modems and small switches can't go in a rack on their own. When you add one, the planner puts it in a rack mount made to fit that exact device, from 3D Rack Mounts. Gear that already has rack ears goes straight in.
Tap an open slot to choose where the next item goes. Drag an item to move it (on a phone, press and hold first). Tap it to remove it.
The short answer
Pick a 10 inch rack if your gear is small (mini PCs, a small switch, a gateway, a modem) and the rack sits on a desk or shelf. Pick a 19 inch rack if you already own full-size rack gear (a 24 or 48 port switch, a rack NAS, a rack UPS) or expect to.
What actually fits
Rack gear is sold in two widths. A 19 inch rack takes standard network and server gear with its own ears. A 10 inch rack takes the smaller 10 inch gear (UniFi Flex and Lite switches, some patch panels and PDUs), and everything else goes in on a mount or a shelf.
Small desktop devices fit either way. Most mini PCs, Macs, modems and gateways have no rack ears at all, so in both sizes they need a mount made for them. In a 19 inch rack, two small devices can often share one row.
Space and noise
A 10 inch rack is about half the width, so 6U to 12U fits on a desk, a bookshelf or under a TV. A 19 inch rack needs a closet, a wall or the floor, and the gear made for it is usually louder.
Growing later
Moving from 10 to 19 inch means new mounts and often new gear, so think about the next two years. If you are buying a 24 port PoE switch or a rack NAS soon, start with 19 inch.
Questions
- Can 19 inch gear go in a 10 inch rack?
- No. 19 inch gear is too wide. Go the other way: small devices can go in either rack on a mount.
- Is 1U the same height in both?
- Yes. 1U is 1.75 inches in both 10 inch and 19 inch racks.
- Which is cheaper?
- A 10 inch rack and its gear usually cost less to start. A 19 inch rack costs more up front but takes used enterprise gear.
More guides
How it works
- Pick a rack. 10" mini racks (DeskPi, GeeekPi, Lab Rax and similar) or a standard 19" rack, at the height you have.
- Add your gear. Search a device to place it. Gear that already has rack ears, like UniFi and Netgear switches, Synology RackStations, UPS units and PDUs, is in the list too and goes in as rack-ready.
- See what's missing. Anything without ears shows as "needs a mount", with a mount you can buy for it.
- Share it. The link holds the whole layout, so a build can be posted, compared or finished later.