Canada Wood Korea
3rd Fl., 203 Bldg., #203-7
Yangjae-dong, Seocho-gu,
Seoul, Korea 137-893
Tel: 82-2-3445-3835/4
Fax: 82-2-3445-3832
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 Oriented Strand Board
OSB uses strands of wood fibre bonded together with heat and pressure to create a waterproof sheathing product.
The strands in the outer faces of OSB are oriented along the long axis of the panel thereby, like plywood, making it stronger along the long axis as compared to the narrow axis.
The strands used in the manufacture of OSB are generally 80mm (3-1/8") long in the grain direction and less than 1 mm (1/32") in thickness.
OSB are efficient additions to the family of wood building materials because: They are made from abundant, fast growing, small diameter aspen poplar or pine to produce an economical structural panel.
The manufacturing process can make use of crooked, deformed, small diameter trees which would otherwise have little commercial value, thereby maximizing forest utilization.
Many strength-reducing defects are removed during manufacturing, and any remaining defects are evenly dispersed throughout the panel, resulting in consistent strength properties.
The orientation of strands gives increased strength properties along the long panel dimension (strength axis) of OSB.
Specific strength properties can be achieved by adjusting the orientation of strand or wafer layers.
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