Valston-we used a high grade PVC covered 19 gage hardware (hardwire?) mesh. We bought 18 gage wire to connect it (very VERY time consumming to wrap, but efficient) and used 12 gage wire to help with framing (around doors). We have 3" of room at the bottom for a tray (when I figure out how to do that part). 6 shelves (3 on each side 13" apart so 6.5" apart when closed)that are 8" with a .5" lip-leaves some room lol. I can't remember the door measurements though sorry!
G-n-R Mommy: Yes ma'am he was living in that-I didn't know any better until after I bought him! We did what I thought was good research before we bought him, but the site was not good at all (PPP). The person we bought from (a PPP breeder) told us that we should only buy 1 to help with bonding (even though we wanted two), and that the small one you see in the pic was fine...he also said buy a heat rock, pelleted feed, ALL the bad stuff!! Now I know better.
When I found out that I had the wrong info (even before I found this site) I called him & asked if we could trade the cage in for a bigger one and get mine a friend. Now that I found this site I know better about that too! Although I'm still trying to figure out how to get MacGyver a friend (rescue another from the PPP or not) we decided we weren't given the man money for another cage esp when the small one is good for travel and we would need one until the 30 day quaratine is over.