Glue-laminated timber (GLT or Glulam) is composed of dimension lumber, which has been specifically selected and positioned based on its performance characteristics. These individual wood laminations are then bonded together with durable, moisture-resistant adhesives. The grain of each lamination runs parallel to the length of the member.
GLT can be used in horizontal applications (as in a beam) or vertically (as in a column). It has excellent strength and stiffness properties, and pound for pound is stronger than steel. Glulam is available in a range of appearance grades, for use in structural or architectural applications.