This U.S. industry comprises establishments primarily engaged in manufacturing fabricated or laminated wood arches, wood roof and floor trusses, and/or other fabricated or laminated wood structural members. Illustrative Examples: Finger joint lumber manufacturing I-joists, wood, fabricating Laminated veneer lumber (LVL) manufacturing Parallel strand lumber manufacturing Timbers, structural, glue laminated or pre-engineered wood, manufacturing Trusses, wood roof or floor, manufacturing Cross-References. Establishments primarily engaged in--