LVL (laminated veneer lumber) is a widely used structural composite lumber product. It is produced by bonding thin wood veneers together in a large billet so that the grain of all veneers is parallel to the long direction. The LVL billet is then sawn to desired dimensions depending on the end-use application. Because LVL is made with scarfed or lapped jointed veneers, LVL is available in lengths far beyond conventional lumber lengths.
Popular LVL applications include headers and beams, hip and valley rafters, scaffold planking and the flange material for prefabricated wood I-joists. (https://www.apawood.org/structural-composite-lumber)