You can stack plastic chairs on top of each other, and fold metal chairs, what is really nice to save space. But face it, neither chair looks good on that prententious dinner you arranged to impress your boss, right?

This is a chair in which each item of the set is slighly smaller than the rest. The chair seats are smaller in length, lateral width and height.of seat. The overall heigth of the chairs are all the same, so it doesn't look weird. 

The seat of a smaller chair fits under the set of a larger chair. 

How many chairs can you make like this, before the chair gets too narrow for comfort?