Oskar Zieta’s creative collections


The Zieta collection includes not only the well known Plopp stool family, but also Chippensteel 0.5 chair, Nogi, the unique coat hangers: Kamm, Pin and Drab as well as other newly created products and FiDU accessories.

Plopp Family

The new Plopp Family includes: Mini Stool, Standard Stool and a Kitchen Stool.

The Plopp stool is composed of two ultra thin steel plates cut into the desired shape and welded around the edges. Finally air under high pressure is shot into the unit causing an expansion into the desired shape. The idea is to make a light construction which is easily mass produced but with a unique result where every single piece of furniture is a one of a kind sculpture.

Plopp stool is an icon and a bestseller of Zieta Prozessdesign. The unique, toy-looking and playful shape of Plopp is an effect of an innovative forming method – FIDU. FIDU technology means that two ultra-thin steel sheets are welded together around their edges and inflated under high pressure to give a 3d object. FIDU enables mass production of individualized shapes.

Plopp stool has been shown on many exhibitions around the world and has won many prestigious awards – includuding Red Dot Design Award 2008, German Design Council Award 2008 and Forum AID Award 2009.

Sheet steel, powdercoated

White, black, yellow, grey, polished stainless steel

Ø 35 x H 51 cm


Flexible forming fits well all flexible solutions. Pure line of our trestle Koza is an effect of careful deformation of thin steel sheets by internal pressure. Surprising lightness, smooth aerodynamic lines and the durable construction is the essence of what Zieta Prozessdesign develops and what this project reflects.


Tatarak is using the ability of FiDU technology to roll large objects into small rolls before they arrive at the client. Densely rolled hangers are sent in small packages to save space in transport and money for the delivery. Unrolling is done at home to the specific height desired by a client according to his preference, using a bicycle inflation pump.
The inflation process itself could be a great show for the whole family and friends. After that everyone can hang anything they wish, as the hanger will become a fully stable and durable object.


The development of a limited edition Chipensteel chair. Available in open series in new colors – offering unique material and pattern experience. Uniquely processed and produced in FiDU using bending properties of steel sheets.

41/60/h78 cm


Coat hanger, available in different sizes, welded and inflated very carefully under high pressure to create unique bulges and waves.

Available versions: 3,5 & 9

Zieta Prozessdesign aims to develop innovative design in smarter technologies for the future. The work involves experimenting with different shapes to develop the whole scale of possibilities for the new systems and to present new, more complex design concepts.