This is a very comfortable side or dining chair. Unfortunately there have been a number of cheap Asian imports of a similar chair that have collapsed. We have been making this chair for forty years and have never had a failed frame. The frame is 2mm wall,
This chair is built using the same high tensile steel tube used in the cantilever chair. The horizontal seat rails are not joined to the vertical back supports so the seat is cantilevered to give a sprung feeling while the back can also move back slightly