Louisiana-Pacific Corporation is a manufacturer of building products. As of December 31, 2011, the Company owned 21 facilities in the United States and Canada. It also owns two facilities in Chile and one facility in Brazil. It operates in four segments: North America Oriented Strand Board (OSB), Siding, Engineered Wood Products (EWP) and South America. The OSB segment manufactures and distributes OSB structural panel products. The siding offerings fall into two categories SmartSide siding products and related accessories, and Canexel siding and accessory products. The Engineered Wood Products (EWP) segment manufactures and distributes laminated veneer lumber (LVL), I-Joists, laminated strand lumber (LSL) and other related products. The South American segment manufactures and distributes OSB and siding products in South America and certain export markets. The Company operates three facilities through joint ventures, for which it is a provider of product distribution for North America.