laminated timber

laminated timber

Timber beam or arch manufactured from four or more layers of wood, usually about 1 inch thick, bonded together with waterproof adhesive. See also: Douglas fir

glued-laminated timber

glue-laminated timber A manufactured product consisting of four or more wood layers, none of which exceeds 2 in. (5 cm) in thickness, bonded together with adhesive; may be comprised of pieces which are end-joined to form any desired length, or which may be glued edge-to-edge to give greater width.