I am constructing a 90" by 40" by 48" enclosure for a couple of monitors(still undecided on which species between a few arboreal monitors. The glass will be on 2 sides. 1 pane will be about 34 by 72" and the other about 40 by 72". I am not sure what thickness of glass to use and if tempered is needed based on the size of the glass. If anyone could help, It would be greatly appreciated.