Got the idea from a magazine, execpt theirs was all butt jointed and was a single decker. This is all dadoes and Rabbits. I learned a lot about routing, and straight edges and stock that is not square.
The back of the cabinet is not rabbited in, but is flush with the sides. It was cut in half horizantally and the made to serve as a french cleat.
This will serve as ledger board to mount a set of 3 Door cabinets a la insomniac's