I have tops for all three (I made two other enclosures, same size, different partitions. THey are removable to adjust for different needs), mainly because I have a friend who is a contractor and gave me two huge sheets. Has anyone priced plexiglass lately? Its $ 70.00 for a 72"x 36" sheet!!! In the spring I will have a snake room set up and will move to a rack system then. ANd I did remove the hides for pictures. And it is 1/2" hardwear cloth, so it's not as potentially abrasive as screen would be.