Red Seal Carpenter Practice Exam 2025 – All-in-One Resource to Master Your Certification!

OSB stands for Oriented Strand Board, which is a type of engineered wood product made from strands of wood layered and bonded together using adhesives. The strands are oriented in specific directions to enhance the board's strength and structural integrity. This orientation allows OSB to provide a higher degree of stiffness and strength than traditional particle board or plywood.

OSB is widely used in construction for applications such as sheathing, flooring, and roofing, owing to its durability and cost-effectiveness. The manufacturing process not only utilizes smaller, more sustainable wood materials but also makes efficient use of wood resources, contributing to environmentally friendly construction practices.

The distinction from other options clarifies why OSB is essential in modern carpentry and construction. The terminology applied in the other choices does not align with recognized building materials, ensuring that understanding the correct term is crucial for anyone in the field.