Glue laminated trusses glulam truss beam thickness is normally 3 7 but can be larger.
Blued laminated construction.
Because of the laminated construction technique beam depth can be supplied much larger than solid timbers which are normally limited to 16 20 inches of depth with beams up to 60 deep having been manufactured.
Download the glued laminated beam design tables form s475 provide recommended preliminary design loads for two of the most common glulam.
A glue laminated timber is an engineered wood product meaning it is made from wood but is machined and assembled to precise specifications to create a predictable dimensionally stable building material.
In north america the material providing the laminations is termed laminating stock or lamstock.
Glued laminated wood glulam is a structural material manufactured through the union of individual wood segments.
The idea of laminating lumber with glue for use as beams was originally conceived on job sites in europe over 100 years ago.
This engineered wood product is composed of multiple laminations of kiln dried end.
Other common engineered wood products include plywood oriented strandboard osb and laminated veneer lumber lvl.
The glulam product guide form x440 describes apa trademarked glulam addresses important design considerations and includes a specification guide it also highlights some of the many applications where glulam is used in construction.