OSB – Oriented Strand Board

OSB is an engineered panel board composed of layers of thin rectangular-shaped wood strands, which are “oriented” at right angles to each other. Laid up into mats that form a panel, OSB is bonded with waterproof adhesives under heat and pressure. Product ingredients such as fiber and adhesives are carefully selected and calibrated to provide properties that meet precise specifications. Process technologies and equipment are continually monitored to assure consistent quality, whether it's for commodity sheathing or specialty products.
OSB is widely used in residential and commercial construction for applications such as subfloors and wall and roof sheathing. Sanded OSB is used increasingly for interior decoration of homes and commercial buildings.
OSB panels have no laps, gaps, or voids and are therefore an ideal component in the manufacture of other products, including I-Joists for engineered floor systems, stair stringers, furniture and packaging. Size, thickness and other properties are engineered to meet the precise specifications of the end user.

Sizes:

Thickness: Thickness ranges from 9mm through 18mm.
Panel Size: 3 feet (910mm) and 6 feet (1830mm) in width and from 4 feet (1220mm) to 12 feet (3660mm) in length.