They would be in Sterlite or Vision tubs. Guess I need to calculate the cost of melamine with the Vision tubs. I can get them without lids and they would be exposed to the top (underside of the shelf above them), so plywood would not be good in that case. I could always use lids with Sterlite tubs, but I don't really want lids.....

Right now my QT rack is just a 8' x 24" piece of OSB on two file cabinets and the QT snakes are in Sterlite 15qt tubs with lids.