Hey everyone! So I plan on building my xpvc racks in a few weeks. I'm building some to hold 60qt sterilite bins at target, for which I need 35x19 shelves. So my question is, after changing the specs above, I noticed I would have four support legs (the frame ya know) that would be attached to the shelves. The four legs would be 6.5 in thick. Would that be enough to support the weight of the rack? Or should I revamp my specs?