Server Cabinet

Hi guys,

This may sound silly to some of you but I need to spec a cabinet for a Dell Inc. PowerEdge R440 and a Meraki Switch MS220-24

I'm paranoid about ordering the wrong cabinet.

Can someone point me in the right direction as to what I should Google, or look for, or is there a standard size which makes this easy to look for in the future?

Let me know if I need to provide more info.

Many thanks, Travis