yuya ushida: sofa_XXXX
original content
jan 24, 2011
yuya ushida: sofa_XXXX

‘sofa_xxxx’ by yuya ushida



‘sofa_xxxx’ by german-based designer yuya ushida is an expandable and retractable seating unit which transforms from chair to sofa.
presented at designers fair at imm cologne 2011, the furniture piece is constructed from 8000 chopsticks which have each been
individually cut to four different lengths and sanded to achieve the correct angles needed to build the structure.
rings and joints are used to connect the sofa and aid in its adaptability and flexibility. overall, it took three months of work to finish the object.
three people of 70 kg each, can sit on the sofa at any one time.



various views of the sofa expanded to its greatest size



details of the sofa



detail of the chopsticks and joint components
image © designboom



detail of how metal rings connect the individual sticks
image © designboom



‘sofa_xxxx’ on show at imm cologne 2011
image © designboom



the two repeated elements which create the retractable form of the sofa
image © designboom



how the ‘XXXX_sofa’ works
video courtesy of yuya ushida



here is a look at the process it took to produce ‘sofa_xxxx':

sanding down the chopsticks and preparing them to be cut in box moulds



the chopsticks were cut to four different lengths



each stick was drilled individually



cutting off the edges of the sticks and sanding them



up close of sanding the sticks individually with a look at the before and after



starting to connect the sticks together with joint components



assembling the sofa

comments policy
login with designboom
designboom's comment policy guidelines
generally speaking, if we publish something, it's because we're genuinely interested in the subject. we hope you'll share this interest and if you know even more about it, please share! our goal in the discussion threads is to have good conversation and we prefer constructive opinions. we and our readers have fun with entertaining ones. designboom welcomes alerts about typos, incorrect names, and the like.
the correction is at the discretion of the post editor and may not happen immediately.

what if you disagree with what we or another commenter has to say?
let's hear it! but please understand that offensive, inappropriate, or just plain annoying comments may be deleted or shortened.

- please do not make racist, sexist, anti-semitic, homophobic or otherwise offensive comments.
- please don't personally insult the writers or your fellow commenters.
- please avoid using offensive words, replacing a few letters with asterisks is not a valid workaround.
- please don't include your website or e-mail address in your comments for the purpose of self-promotion.
- please respect jury verdicts and do not discuss offensively on the competition results
(there is only one fist prize, and designboom usually asks renown professionals to help us to promote talent.
in addition to the awarded designs, we do feel that almost all deserve our attention, that is why we publish
the best 100-200 entries too.)

a link is allowed in comments as long as they add value in the form of information, images, humor, etc. (links to the front page of your personal blog or website are not okay). unwelcome links (to commercial products or services of others, offensive material etc. ) will be redacted. and, ... yes, spam gets banned. no, we do not post fake comments.

chopsticks (8 articles)

product library