Depends on the size of the exo-terra. Also depends on what you use for substrate, cage furniture, etc. They weigh a lot more when they're full than when they're empty. As with all glass enclosures, they're fairly heavy. I'm sure you could make a shelf to hold one though. But you might want some brackets that are a bit more heavy duty and you'll want to make sure to screw them directly into studs and not just dry wall.