Norbord Inc. was a Canadian company that manufactured wood-based panels and became the world's largest producer of oriented strand board (OSB).

Norbord also manufactured particleboard, medium-density fibreboard (MDF) and related value-added products.

Its OSB mills in the US are located in Minnesota, Georgia (2 lines), Mississippi, Alabama, South Carolina and 2 in Texas.

Its particleboard lines are located in Cowie, Scotland and South Molton, England.

In 2016 Norbord announced an expansion of the Inverness facility by addition of a 55m continuous OSB line, expanding production capacity to 750.000 m³/year