Japanese studio Nendo used "puzzle-like" joinery when designing this all-wooden chair for Fritz Hansen, which will launch at this year's Milan design week.
Named No.1, the chair is the first totally wooden design to be produced by the Danish brand since Arne Jacobsen created his Grand Prix model in 1957.
The structural elements of Nendo's design are made from solid wood, while others ? namely the shell ? are crafted from nine thin layers of veneer, formed using Fritz Hansen's plywood moulding technique.

The chair's shape is typical of Nendo's simple design aesthetic and features a slimline appearance with short armrests.
Joints used to assemble the chair are designed to be hidden ? as though they are "barely touching".
"Normally the joints between a frame and a shell are thickened to increase its strength, sometimes resulting in a heavy appearance," said the studio, which is headed up by designer Oki Sato.
"To provide a lighter appearance, these joints were carefully designed to look as though they are barely touching," it continued.

The No.1 chair is made from 23 wooden pieces, each of which were produced by hand.
The layered backrest slots into sections on the frame. The shorter armrests mean that the chair can be pushed right up towards a dining table, while the seat slopes at either side to fit around the body.

"This puzzle-like assembly of 23 wooden pieces is a mix of solid wood and veneer all produced by hand, ensuring ...