Laminated Veneer Lumber (LVL) 

(LVL) consists of multiple layers of thin wood assembled with adhesives. Due to its composite nature, it is much stronger and less likely to warp, twist, bow or shrink than conventional lumber. In wall applications, it is typically used as lintels, studs and/or columns.

Laminated Strand Lumber (LSL)   

(LSL) consists of flaked wood strands pressed and combined with an adhesive. It can support higher vertical loads and provides much more crushing strength than conventional lumber. It is typically used as wall framing for multi-story construction.