LVL
Laminated Veneer Lumber – Generally called "LVL", come in 1-3/4″ thicknesses with depths such as 9″, 11-7/8″, 13″, 16″, 18″, 24″, and are typically doubled or tripled up. They function as beams to provide support over large spans such as removed support walls and garage door openings, places where dimensional lumber isn't structurally sound to use, and also in areas where a heavy load is bearing from a floor, wall or roof above on a somewhat short span where dimensional lumber isn't practical
