Sep 19, 2005. /Lesprom Network/. Forest products company Weyerhaeuser Co. sees no material impact from hurricane Katrina's destruction, company executives said. The storm surged through 350,000 acres of southern pine land owned by the company, Weyerhaeuser executives told investors at the UBS Paper and Forest Products Conference here. The company, which harvests lumber and produces cardboard boxes and office paper, said the pine acreage represented less than 1% of its U.S. softwood inventory.