Same room no problem. All my snakes are in the bedroom, true my corns are across from the BPs but no biggie.

The big thing with the same rack would be temps. Corns need 10 degrees or so lower than BPs and hardly ever need both sides heated (like my BPs do since I live in the land of weird weather). You'd still need separate t-stats and would probably have to keep the corns on the bottom where it's 'cooler' if they were in the same rack, and even then they might be a bit warm.

Not sure, tho... I never tried anything like that myself. I'm making my first rack right now for my adult BPs to save space, otherwise they'd all be in tanks.