___ strand lumber has been engineered to replace large-dimension lumber.

___ strand lumber has been engineered to replace large-dimension lumber.

• A. Parallel
• B. Cross
• C. Diagonal
• D. Plywood

Answer: (A)

Parallel strand lumber is an engineered wood product built by bonding long wood strands in parallel with adhesive to form a strong, beam-like member. This orientation gives high bending strength and stiffness in the length direction and excellent dimensional stability, making it a reliable substitute for large-dimension solid lumber in structural members such as beams and headers. Other options describe different products: cross-laminated or veneer-type products use layers oriented in opposite directions for panels rather than solid beams; plywood is a panel made from thin plies and isn’t used to replace large timbers in the same way; diagonal isn’t a standard term for this purpose.

Parallel strand lumber is an engineered wood product built by bonding long wood strands in parallel with adhesive to form a strong, beam-like member. This orientation gives high bending strength and stiffness in the length direction and excellent dimensional stability, making it a reliable substitute for large-dimension solid lumber in structural members such as beams and headers. Other options describe different products: cross-laminated or veneer-type products use layers oriented in opposite directions for panels rather than solid beams; plywood is a panel made from thin plies and isn’t used to replace large timbers in the same way; diagonal isn’t a standard term for this purpose.