The day you installed your server rack, there was only a single server to install in it. However, now that your business has grown, you are going to have to install more servers to handle all of your traffic. At this point you cannot just start bolting your new servers in place. Before you do, you need to take a very close look at the load carrying capacity of the rack you are currently using.
Your Server Rack Has to Be Able to Handle the Load
You are likely to find that if you try to add more weight to your server rack than it was designed to handle, that you are going to come in one morning and find one or more of your expensive servers in pieces on the floor. The easiest way for you to avoid this potentially disastrous situation is to think seriously about upgrading your server rack at the same time as you add the new servers and check to make sure the one you buy can handle the load.