It is somewhat new. I built it a couple months ago for my growing Ball python collection. I have built racks before. with white melamine like 10 years ago. I experimented with building them from xpvc sheeting. which worked decently but a bit more pricey. With out a doubt this is the most bang for your buck. black melamine sheets for like 35 a peace for a 4' x 8' sheet. ( special ordered from Lowes) If I remember correctly I was able to build this one with 1 sheet. 1/3 open side design to save some material but still give the snakes a seance of security with having the back sides and back enclosed.
http://farm5.static.flickr.com/4089/...30502e5e65.jpg