The Monobloc Chair – aka the stackable plastic patio chair that you may currently own – has been described (by Wikipedia and Treehugger at least) as the world’s most common plastic chair. My house came with a few of these stacked gems, and I kept them for a long while because they were convenient and stackable. I thought they would never wear out, but they did.
![Generic/Unbranded Backgammon Patio Chair](https://images.homedepot-static.com/productImages/c2b2e6be-769a-4a03-ad72-cacb59e66f0a/svn/generic-unbranded-outdoor-dining-chairs-232981-64_1000.jpg)
The Monobloc – a chair made of one piece of plastic – was introduced by Canadian designer D.C. Simpson in 1946.