4" deep, i have two of the arboreal exo terra's that are 12"x12"x18"I am looking at the 12x12 Exo Terra Glass Terrarium. Does the screen top on this cage lock on so the T can't push it open? Also how deep is the bottom section below the doors?
Just remember the aboreal type enclosure wont be suitable for a terrestrial as a fall from heights in there would definately hurt or kill the T.I'm looking to put a GBB and Mex red knee in them. I'm thinking about getting the 12x12x18. It will give me the flexibility to use it for arborials in the future if I need to.