Triangle is considered the strongest shape.
At the same strength, triangular tubing uses less material compared to rectangular tubing. Even so, triangular tubing is not available in the market as a standard profile because it is difficult to work with angles but for us, as designers, we found it challenging.
The main structure of the TRI-Tube chair is made of triangle aluminium extrusion profile. It is lightweight, stackable, and can be used both indoor and outdoor.
Tritube have got Demark award and Good Design Award in 2013