Wonderful shelves at a great price! Keep in mind they're not meant to store heavy items and the surface area of each shelf is small (12 in x 7.5 in), compared w/many other shelves. I ordered two sets (4 shelves each), made 4 levels with each, and placed them side by side in a wide cupboard. But you also could string them out--one shelf high--like a train. Very versatile in that way. The legs pop right open to nestle on top of another shelf, with room in between shelves for items 5 to 5.5 in tall.