GLT® (Girder Longitudinally Tensiletested) is a cost-effective alternative to glued laminated timber, solid timber, and finger-jointed structural timber. HASSLACHER group's GLT® has the same load-bearing capacity as glued laminated timber and can therefore be used as a substitute in most types of construction. Each GLT® is individually tensile tested under extreme conditions to create high strength and load-bearing capacity.
GLT® Production Process
HASSLACHER group's GLT® is developed through a series of steps to ensure safe and durable timber constructions.
Step 1 - Quality Grading
Specially selected and certified sawn timber is produced, kiln-dried, and pre-graded by specialists at HASSLACHER group's sawing facilities.
Step 2 - High-tech Strength Grading
The timber is examined through the latest X-ray and laser technology that enables recognition and elimination of strength-related deficiencies in the wood.
Step 3 - Patented Tensile Testing
Usually, the strength of supporting components is only monitored based on random sampling – that is not the case with Hasslacher group's GLT®. Each GLT® beam is subject to a patented tensile proof loading process over the whole length of the beam, ensuring comprehensive quality assurance.
- Rafter-supporting purlins in hall construction
- Rafters and purlins as roof constructions
- Main beam in floors including in visible areas
- Highly stressed bending beams
- Timber Frame studs, trimmers, headers, and soleplates
- Volume and cost saving of up to 30%
- Easy dimensioning
- Highest levels of safety along finger joints thanks to tensile proof loading
- High load-bearing capacity with low density
- Transparent glue lines on finger joints
- Included in standard design software
- Available in visible and industrial qualities