Laminated veneer lumber is a shop fabricated structural wood, composed of wood veneers which are adhered together. Laminated veneers were first developed in the 1940s for aircraft parts. Laminated veneer lumber (LVL), which is a structural composite lumber (SCL), was first produced in the 1970s in response to growing environmental pressures and government regulations. It is an environmentally friendly product that efficiently utilizes wood fibers from smaller trees.