Based on CNC precision, Seunji Mun's plywood chairs achieve 100% yield from a single sheet of plywood. His latest Economical Chair consumes one panel per chair. A related  ‘Four Brothers’ project produces four stylish chairs from one plywood panel.

The "Four Brothers" plywood chair project earned a place as a retail display in a trendy fashion store. These chairs are cut four-up, as Mun, a designer in Seoul, South Korea, explains below in his own English translation.

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"The size of wooden plate which can be bought in the market is 4x8 (2400x1200 cm). We made the new design so that all pieces of wooden plate can work for function of the chair. So, this design does not make wastage of material.

The nature of the designs means a customer can mix and match - three of one, 1 of the other, 2 and 2, etc.

"We have made four designs and customers can select the design according to their taste and requirements. Furthermore, this design enables to make 4 chairs by using not only one design but also four designs."

Mun, a 2012 graduate in Product Design and Furniture Design from the Kaywon School of Art and Design in South Korea, has applied his maximum yield to another chair: the Economical Chair. This more refined design derives a single chair - with moulded plywood - from a single sheet of plywood. He has also applied his product design skills to a pet bed, and a sofa for pets.

"This ‘Four Brothers’ can do the function of general chairs perfectly," Mun says. "It is not a simple design like the chair which does not include back of the chair such as a stool. So it is comfortable even though we use them for long time."

Likewise, Four Brothers is able to make mass production without waste of materials. Also, they could reduce labor cost by CNC (computer numerical control). This kind of simple work produces one chair so people can save their times, assets, and technologies. Therefore they can do mass production with the same amount of money. That’s why it is beneficial to communities and public institutions which do not pursue its own interests.

 Our project is suitable for many places such as hall holding performance, lecture, and benches in park. We are sure that it is also good for cafe or bar because design in itself has difference to existing products.

‘Four Brothers’ is eco-friendly composed of material to working process and only use conventional techniques to realize this project. We do not need any special techniques. Lastly, we can obtain a lot of products through low capital.