The material of the structural frame is Kerto® as well as the Finnjoist I-beams produced by the company Metsä from Finland.

The beams are similar in shape and function to the known I-profiles made of steel, only made of wood. These light-weight beams have been staticly optimised that they can bear high loads, while requiring minimal use of material.

Metsä Wood Finnjoist® (FJI)

Metsä Wood Finnjoists® (FJI) are manufactured from high quality oriented strand board (OSB3) web, and flanges made from their own Kerto® LVL (laminated veneer lumber).  The engineered timber I-beam joists deliver strength and rigidity, virtually eradicating floor movement and its associated problems, resulting in greater floor performance.

Thanks to excellent properties of Kerto Finnjoist is incredibly strong and dimensionally stable, and it does not distort or shrink. It derives its high strength from the homogeneous bonded structure and is an excellent flange material. Finnjoist I-beam is lightweight yet incredibly strong, resulting in a quick and reliable installation.