Glued laminated timber also abbreviated glulam is a type of structural engineered wood product constituted by layers of dimensional lumber bonded together with durable moisture resistant structural adhesives.
Blued laminated construction.
Glue laminated construction glulam products are large manufactured structural products used in commercial and residential applications.
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.
This engineered wood product is composed of multiple laminations of kiln dried end.
In north america the material providing the laminations is termed laminating stock or lamstock.
The idea of laminating lumber with glue for use as beams was originally conceived on job sites in europe over 100 years ago.
When glued with industrial adhesives usually melamine or polyurethane resin.
Other common engineered wood products include plywood oriented strandboard osb and laminated veneer lumber lvl.
Glue laminated trusses glulam truss beam thickness is normally 3 7 but can be larger.
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.