Roosevelt Bin Box Assembly  
1.  First, consider the order you wish your options to be stacked on the uprights
2.  Select the option you wish positioned lowest on the uprights, then slide it down over the uprights as shown in the illustration.
3.  Align the attaching bracket so that the knob bolt will go into the dent in the back of the upright.  Tighten gently.
  Additional Assembly  
Adjustable Top Shelf Overhead Light  
Back Mounted Power Strips Light Frame  
Nylon Drawers Bin Box Rail