I have six Reptile Basics racks and love them, but they are pricey. I decided to try my hand at building one. I built the one from this post: http://ball-pythons.net/forums/showthread.php?t=79217, and I love it. It holds eleven adult ball pythons. I did add a back piece to hold the heat in. It only cost a couple hundred dollars compared to around eight hundred for three Reptile Basics racks.

Hope this helps.