I-BEAM Systems


The Finnframe System is an inspired mix of quality, technology, and service - a total floor and roof system devised specifically for the UK construction industry. 

Sydenhams design and manufacture the Finnframe system for both domestic and commercial uses that incorporate Finnjoists, which are manufactured with Kerto S LVL flanges, Kerto S LVL beams for stair trimmers and Kerto Q for Rim boards.

The system is a versatile and cost effective framing solution with high quality structural products, resulting in easier installation and design flexibility.

Whether you are involved in a one off prestigious project or larger estate development with different house types, the Finnframe system is a fast and cost efficient solution, whilst meeting its sustainable forest requirements with P.E.F.C.

Ask your local Sydenhams branch for more details.


Engineered and produced to give uniform strength, rigidity, size and weight; engineered wood products out-perform the traditional solid wood construction. Produced at reduced moisture content, engineered wood products are some of the most stable on the market today. Our Finnjoist is a prime example, with a high quality OSB web and flanges made of Kerto (LVL), delivering less dimensional change over time, virtually eradicating floor movement and its associated problems, resulting in greater floor performance.