well proven chair by marjan van aubel + james shaw
well proven chair by marjan van aubel + james shaw well proven chair by marjan van aubel + james shaw
oct 16, 2012

well proven chair by marjan van aubel + james shaw

through the understanding that there is 50% to 80% of timber wastage during manufacturing, london-based designers marjan van aubel and james shaw have investigated ways of incorporating waste shavings into design using bio-resin. a curious chemical reaction occurs when they are mixed with the scraps, expanding it into foam. the reaction is exacerbated by different types of wood, the addition of water, air trapped in material, and increased temperatures these different factors can give expansion of up to 600-700%.

the well proven chair
all images © petr krejci / courtesy of marjan van aubel



by adding color dye and varied-sized shavings from different workshop machines, a colorful, lightweight and moldable material is created, reinforced by the fibers in the hardwood discards. a porridge-like mixture the formed material is slapped on to the underside of the chair shell by hand, building up the material wherever extra strength was required. the mixture then foamed explosively to create its own exuberant form, anchored by the simple turned legs of american ash.

detail of the expanded material

the well proven chair in a red and green color variation

video process
cinematography by wai ming ng



finished chair in the studio

troubleshooting after releasing the chair from the mould

finishing detail process

applying thin layers of the material onto a mold

batches of the material mixture

scrap wood for the mixture

expanded foam tests and samples



  • huge step backward from chipboard isn’t it?

    ure says:
  • And directly copying the design of an existing chair by using it as a mould is also kind of questionable…

    jam says:
  • Doubt you will see this in Elle Decor.

    Jam.. that chair looks pretty generic.

    Next: make it out of bird seed and gelatin use it outdoors.

    Jim C. says:
  • artsy-fartsy

    Paedra says:
  • On the contrary – I think Elle Decor would appreciate an eco-friendly solution like this.

    soup2nuts says:
  • This is one of the most EPIC things I have ever seen! You are both brilliant. Thank you for your commitment to craft and your innovation. Keep leaning forward! Impressive work.

    Stephen Kenn says:
  • Davy Jones: that\’s my chair!

    Asphere says:
  • don t tell me u call it sustainability. foams and resins expands normally. mixing it with wood waste is not saving wood wast, instead just adding extra stuff to a functional chair.

    Does the ‘material’ works on its own? Yes very well done video, and intellectual talks. that s it though.

    Antonio Cesare Iadarola says:
  • 0_0′

    ‘His Hipster rating is over 9000!’

    What Would Dilla Do? says:
  • looks like a hobbnobb on legs, yummy

    lazy eyes says:

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