A few weeks back we posted an image showing a Vitra Joyn workstation installation in an office space. The space included a steel flooring tile which is very unusual. The tile is manufactured by a company called Panium and it is indeed made of plate steel.
The tiles are available in two textures, and they can be mixed if you wish. One has a bumpy texture, the other looks like the surface of steel straight from the mill.
Thanks to Pat Anthony!