Ainsworth Lumber Co Ltd (Ainsworth) is a Canada-based manufacturer and marketer of oriented strand board (OSB) with a focus on value-added specialty products for markets in North America and Asia. The Company has a production capacity of approximately 2.5 billion square feet per year (3/8-inch basis) and has four wholly-owned OSB manufacturing mills located in Grande Prairie, Alberta; High Level, Alberta; 100 Mile House, British Columbia; and, Barwick, Ontario. Ainsworth engineered wood products include oriented strand board (OSB), oriented strand lumber (OSL) and specialty overlaid panels. The Company operates principally in one operating segment, oriented strand board. The Company�s products include pointSIX durastrand flooring, pointSIX flooring, steaditred stair tread panels, durastrand rimboard, rim, board/rim board plus, risers, sips and edge form.