Are the bases stackable?
1848659
Yes they are. I love these lids. They are so easy to open and keeps the food so fresh.
1848660
Yes. They kind of lock into the top below them. The whole group takes up little space and doesn't slide off each other when in the fridge. I love these and have many sets.
1848661
Yes they are. Just want to say these are not the best. They actually will leak. Just keep that in mind. The Locke n Locke brand is far superior.
742046
They are not stackable. One could probably do it, but they would be unstable and fall. They are fragile and would break.
584762
You can stack them, but I wouldn't necessarily recommend it. I definitely wouldn't stack more than 1.
1985518
You can stack them, but they do not snap in securely or anything. They would stand and stay, but have the potential to be easily knocked over
1657405
Yes they are stackable. But, they are very light. My cat pushes it around sometimes.
2156512
I don't think they are stackable. You MAY be able to set one on top of the other, but if you do, you will loose the top rack of each one under the stacked one. I only have one so I can't check for you.
386678
Yes. They have a tapered shape that allows you to stack one inside another.
2164639
Yes they are stackable. The indentation comes with a small wooden block so that they are even when stacking.
2227143
They can probably be stacked, but I don't know how stable it would be. I only bought one, but I really love it.
330032
I don't see any reason why you wouldn't be able to stack another set on top. All 3 levels are interchangeable, the "feet" are the same.
673324
Yes...they just stack on top of each other. Ours broke within a week, so they aren't very sturdy at all.
2115949
Yes - stackable. And very efficient -- they take little space when stacked.
1840465
Not designed to stack them. The top and bottom are smooth surface, stacking them is risky.
557375
They are not stackable but if you keep the original box you can store it easier that way. If you would like to know more info on the Step2 Up & Down Roller Coaster I made a review site: step2rollercoaster.com
1894404
Yes they can stack on top of each other, but I wouldn't put any thing else on top of them. I love mine!
1768544
You couldn't stack these. They are about a foot tall, so if you are using 2 x 12's there isn't any room to hold another level.
764120
I just noticed the top parts come out, giving you a little more than half an inch to nest the next level, so, sorry, my former answer was wrong. They do appear to be stackable.