SterlingOSB Zero OSB3 Board 18mm 2440 x 1220mm is a high-performance structural oriented strand board designed for demanding load-bearing applications in both dry and humid conditions. Manufactured in the UK by West Fraser, SterlingOSB Zero combines strength, consistency and versatility in a full-size 18mm structural panel. Its engineered construction eliminates the knots, voids and delamination problems that can occur with some traditional timber sheet materials, providing a dependable board for professional construction and building projects. The 18mm thickness and 2440 x 1220mm dimensions, commonly referred to as an 8 x 4 sheet, make this OSB3 board suitable for a broad range of structural and general building applications. West Fraser identifies uses including wall sheathing, flat and pitched roofs, timber frame construction, agricultural buildings, internal applications and other structural projects. SterlingOSB Zero is manufactured as an OSB3 panel for structural use in load-bearing dry or humid conditions. This makes it particularly useful where a strong engineered timber board with greater resistance to humid conditions is required. OSB3 should not, however, be confused with a waterproof board or one designed for permanent exposure to the weather.