The Piet Hein chair

A design collaboration between Piet Hein and Sibast. Originally designed by Piet Hein in 1968.

Piet Hein developed the chair on the basis of the superellipse, a shape that he originally developed for a combined town square and roundabout at Sergels Torg in Stockholm. With the help of mathematics, Piet Hein arrived at a harmonious geometric form, which he subsequently used in several contexts.

The superelliptical chair and barstool appear as fine examples of Piet Hein's way of imagining form and function. His ability to cut to the bone, both in words and physical materials, is undeniable, which perhaps explains why the chairs still appear refreshingly modern.