I'm looking into building a rack. I have a few goals for it.

I'd like to be able to fit 12 adults in it when it's all said and done, and hopefully have the flexibility to have hatchlings in there as well.

I'm having a hard time finding tubs though. It seems like the sizes have changed since some of the DIY threads.

So my questions are as follows:

What size tub is still available that I can keep adults in? (I've seen everything from 32 to 41)

If the longer 41qt tubs are recommended, do people run the racks sideways and just tape (visually) to the left or right side of the rack? If this is the case, I assume the rack will pretty much only hold the 41qt size.

Are there any tub sizes that coordinate well with others? For example, a 40qt that holds an adult, or two 20qt that can sit in that same space for two juveniles.

I'm looking to do this pretty quickly here, so any help/advice is greatly appreciated.

Thanks for reading,
Paul