The idea of creating a concrete frame came during a visit in a street art gallery. When we saw street artist’s works on a frame canvas hanged on the wall, we feel that something was wrong. There must be a better way to bring these great works inside (in a gallery or at home) and still respect the artist purpose. Almost all the artists we like at Lyon Béton worked in a urban playground and, most of the time, concrete is an inherent part of their work. The missing link with our expertise in concrete transformation and urban artists was obvious.