OSB is a material with favorable mechanical properties that make it particularly suitable for load-bearing applications in construction. It is now more popular than plywood, commanding 66% of the North American structural panel market.The most common uses are as sheathing in walls, flooring, and roof decking.

• OSB/0 – No added formaldehyde
• OSB/1 – General-purpose boards and boards for interior fitments (including furniture) for use in dry conditions
• OSB/2 – Load-bearing boards for use in dry conditions
• OSB/3 – Load-bearing boards for use in humid conditions
• OSB/4 – Heavy-duty load-bearing boards for use in humid conditions