Hi everyone!

I've been lurking for awhile and finally have a question....I currently have my BP in a 36x18x12 Exo-Terra. Tomorrow I am picking up a 2 yr old albino that is housed in the same thing. Is it possible to stack the Exo-Terras? I saw a picture of it being done, but the tanks had a more square footprint and got me thinking that made it more possible, as far as stability goes.

Thank you!