I am itching to build a go-box using a pre-made rack case. I cannot decide if I should go with a 3U or 4U case.

3U is plenty high for an IC7300 and a mobile 2m/440 radio and even a front firing speaker. 4U would give me more room for stuff, but I don't want to add too much stuff to this and make it into a heavy brick.

Anyone build a go box out of a rack case and have an opinion of 3U vs 4U?

Thanks,

Dave

AI6VX