So I started to build my baby rack tonight and this is what I have so far. It willl hold 24 6qt tubs total. I just built one shelf to see how it is gonna work and where I am gonna put the thing! LOL I do plan on putting in a divider in between the three tubs to stop future sagging. So here it is so far. I will be finishing it out tomorrow hopefully so I will update pics when I have all the shelves in place.

Showing gap between tub and shelf