The OSB 3 OSB is a high-quality, robust and versatile board measuring 1.22m in length, 0.61m in width, and 15mm in thickness. Made from precision-engineered wood strands bonded with resin, its designed to withstand harsh weather conditions and resist moisture making it ideal for structural applications. Its uniform structure ensures consistency across the entire board, providing both the strength and flexibility needed for a variety of construction projects.