Engineered wood products, glued building products "engineered" for application-specific performance requirements, are often used in construction and industrial applications. Glued engineered wood products are manufactured by bonding together wood strands, veneers, lumber or other forms of wood fiber with glue to form a larger, more efficient composite structural unit.
What efficient type of unit does the process of "engineering" wood result in?
{'text': 'composite structural unit', 'answer_start': 344}