New to our range: I-JOIST | Lemahieu Group

New to our range: i-joist


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Timber construction

I-joists offer several advantages over traditional structural timber beams, including longer lengths, a composition that resists shrinking and warping, and an excellent strength-to-weight ratio.


An I-joist is a structural, technically developed wood product, made up of an upper and lower flange of softwood.

The flanges are glued to the 9 mm OSB core plate in a fully automated production process with strict quality control to ensure that they are moisture-resistant. Drilling of the core plate to provide passages for ventilation channels and other conduits is possible, provided that certain project-related rules of thumb are followed.



I-joists are available in a large number of standard dimensions, including in the sections below, with a standard length of 12 metres. On request, the I-joist can also be processed on the CNC machine.

 47 mm63 mm72 mm97 mm
240 mmOO O
300 mmOO O
360 mmOO O
400 mmOO O


* available from stock (while stocks last)


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Brochure: Products for timber constructions