You may think that network server racks are the kind of equipment that only large enterprise organizations need. After all, they bring to mind images of sprawling data centers, with endless rows of servers and other networking gear lined up lik. You may think that network server racks are the kind of equipment that only large enterprise organizations need. After all, they bring to mind images of sprawling data centers, with endless rows of servers and other networking gear lined up like a robot army, and there's certainly no doubt that organizations with that kind of equipment need a way t. The first and most obvious thing you'll want to consider is how much you want to put into your rack, not just now but into the future. Server racks are usually measured in "rack units," representing the standard sizes of rack-mountable equipment. Very thin "pizza-box" servers and network switches are usually one unit each, while larger servers and. Many rack-mountable servers offer the option to be mounted using rails. In this configuration, a pair of standard rails are mounted to the rack, screwed into all four posts, and then the server, which has the corresponding rails mounted on the sides, slides into the rack, just like a drawer going into a cabinet. This provides additional server stab. Where you plan to install your rack will also impact what kind of rack you choose and may even limit your choices. You'll not likely be picking up a full-sized 42U rack if you only have a cubbyhole available, and you may not want an open rack if you're installing it in an area that's more highly trafficked, like a photocopier room or supply room. M. In considering where your rack will be located, remember that computer equipment generates a lot of heat, and the more you have, the hotter it gets. If you have a climate-controlled server room, then an open rack will be fine, but since most small businesses can't afford to dedicate a whole room just for networking equipment, you'll probably need t.