I'm planning on setting up a caging system with these:
MCB MD: Dimensions: 13 9/16"W x 16 1/8"L x 12 1/8"H


Reptile Tubs sells them, but I pick mine up at the Container Store. They're comparable in size to Exo-Terra Terrariums. My eventual plans: to have a couple shelves of these containers---with plenty of holes---all hooked up to a timered spraying system (like they have at the grocery store).


Just remember that height is more important than floor space and that they need plenty of ventilation. I'm not sure if them being on the floor would be a problem... as long as nothing can get to them, and they aren't sitting next to something that produces excess vibration.