I actually plan to buy the same shelf in the next few days for the same purpose. I only have 1 snake right now but she needs a bigger tub, the breeding bug has bit me so I know I might as well get a setup that will work as a rack down the road

From what I've seen this shelving unit will work perfectly for what I want, I like that I'll be able to fit 41qt and 28qt tubs in the same unit and with the same shelf height. Its a huge benefit IMO to be able to use a shelf for 2 28qt tubs now and down the road switch that same shelf to a 41qt if I need it.