I am working on this setup. It is made out of wood, but sealed very good. I have had a lot of help from The Serphant Merchant or I would have made it this far! There is lighting in the top, and the bottom has tempered glass for the UTH. I have sealed the wood underneath the glass (just in case pee gets past the glass and the door sealer I set the glass on.) I just put the doors on tonight, which have tempered glass on them also. I will be using two locks on the sides of each of the doors. Which work well on my other setup.