Homemade Plywood Glaze Chemical Bins

Here is the front view. 

This is the key feature. A plumbing steel pipe is running the length under each bin and they are secured with U-Brackets. Slightly off center and a 2"x4" is at the back to hold it.

Here is a longer view. Very simple construction.

Here are the bins.  

To keep them from falling forward, the back of each bin is about an inch higher so is stops the bin.