WoodengineeredEngineered

OSB (Oriented Strand Board)

Structural panel built from oriented wood strands bonded with resin. An engineered substitute for plywood in sheathing and flooring, produced from fast-growing species.

Properties

Family
Wood
Category
engineered
Density
0.65 g/cm³ · 650 kg/m³

Applicationswhere osb (oriented strand board) is normally specified

Structural sheathingRoof deckingFloor underlayWall panels

Practical notes

  • Density varies by grade and thickness
  • Rated for structural sheathing — check the grade stamp
  • Edges swell on exposure to water; keep them protected

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