The most complex element that the pair designed was a door. ‘When you have a door in a wall it is an interruption to a very pristine surface,’ Gwendolyn Kerschbaumer explained. ‘We decided to design a door that is not ashamed, but that works with the wall in an elegant way.’ The solution was to taper the door so that it always looks half open. This made it very heavy on one side, and the design had to solve problems such as how to hang the door, and where to put the stops so as not to interfere with the appearance. The shelves were simple, but sophisticated with triangular ends.