HASSLACHER Structural finger jointed solid timber & GLT®
Individually tested – for ultimate safety
The HASSLACHER Group site in Preding has been producing structural finger jointed solid timber since 1998. The product is easy to explain: Technically dried sawn timber is graded by strength and
joined by means of finger jointing. After that the product is planed and chamfered, packed and equipped with a CE mark according to EN 15497. Our range of cross-sections is vast, including width of 50 to 160 mm and heights from 60 to 300 mm. Lengths of 2.5 m to 18 m are available, the standard length being 13 m. The special feature of HASSLACHER structural finger jointed solid timber is the machine grading process, which uses physical parameters, X-rays, cameras and laser technology to detect and eliminate strength-reducing growth characteristics, as well as the tensile test load procedure, which is applied to every bar produced.
“Individually tested – for ultimate safety!“
Together with the Graz University of Technology and the holz.bau forschungs gmbh competence centre, a so-called "proof loading procedure" was developed to ensure seamless quality assurance, especially for the finger-jointing. In this process, each finger-jointed bar is subjected to a patented tensile test load procedure. Zones with low strength, for example inadequately manufactured finger-joints, strength-reducing growth characteristics in the wood or other faults are detected via breakage.
Only after this tensile test has been passed is the profile planed, provided with joinery work or surface finishes as per customer request, and finally packaged. Beams up to 18 m long can thus be reliably and completely checked for strength before delivery to the construction site.