Web stiffener blocks may be comprised of lumber, rim board, or wood structural panels. The minimum grade of wood structural panels is Rated Sheathing; minimum lumber grade is Utility grade SPF ...

Wood Structural Panels. OSB and plywood, referred to as “wood structural panels” in the code, are manufactured with an alternating layer direction using moisture-resistant adhesive. The panels must ...

Dear Pat: I am having a new house built, and the builder is recommending I-joists instead of standard floor joists. I remember reading about some fire problems with them. Are I-joists as strong ...