I'm at home right now so I can't take a picture for you, but we bought several 48" x 24" Metro shelving units at a restaurant auction for dirt cheap. I then put 12 shelves on one 6' tall unit. The bigger boxes each have a shelf (full sheet, half sheet, 14" 12") but the smaller boxes and corresponding cupcake inserts fit 2 or 3 to a shelf. I labeled the shelves so it's easy to spot the box we need. Money WELL spent and it only takes up 2' x 4' of floor space.
11/10/13 at 12:13pm