The chairs are not designed to be stacked fully assembled, but the legs are easily removed using our disassembly tool.
2 chairs resting on each other are 28 inches high x 30 inches wide x 20 inches deep.
3 chairs resting on each other are 33 inches high x 31 inches wide x 20 inches deep. (this is still marginally smaller than one chair with its legs installed)
The photo below shows 4 cloud chairs stacked with legs removed.