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OSB Board

Oriented strand board (OSB), also known as sterling board, sterling OSB, aspenite, and smartply in British English, is an engineered wood particle board formed by adding adhesives and then compressing layers of wood strands (flakes) in specific orientations. OSB may have a rough and variegated surface with the individual strips of around 2.5 × 15 cm (1″ × 6″), lying unevenly across each other and comes in a variety of types and thicknesses.

Size (mm) Thickness (mm)
Square edged 2440 x 1220 9, 11, 15, 18, 22

Sterling OSB3 conforms to BS EN 300 and is an idea panel for

  • Timber frame housing
  • Flat and pitched roofing
  • Wall sheathing
  • Flooring
  • Caravans
  • Sheds and Stables
  • Paneling


Play this video to see the production process for Norbord OSB Sheets.