I don't want to hijack the thread but if you're interested in building a rack that holds multiple size tubs. I have one that holds 12 6 quart tubs, 9 32 quart tubs, and 4 12 quart tubs.

Here's the thread I posted it in.
http://www.ball-pythons.net/forums/s...ad.php?t=62802


Hope that helps.