They are not stackable. The top is the exact size as the bottom.
Answered on 3/12/2014 7:58:10 AM by Sierra Fan from Colorado
They do not slide inside one another, but they have flat bottoms and are pretty stable with the bottom row upside down and top row bottom down if not subject to being knocked from the side. They come in 3 sizes--I stack he short ones 3 high against the back of my cabinet but I would not do that with the larger sizes.
Answered on 3/12/2014 3:02:24 PM by FL Gator from N FL