Cathy Slater, who currently leads the company's Engineered Products and Distribution businesses and also has extensive experience in the Cellulose Fibers business, will succeed Shaker Chandrasekaran, who will retire early next year.
Adrian Blocker will expand his current leadership of the company's Lumber business to include OSB, Engineered Lumber Products and Distribution.
"Both Cathy and Adrian have proven their ability to drive operational excellence improvements to get results, and I look forward to the expertise and energy they will bring to their new roles," said Doyle R. Simons, president and CEO.
Weyerhaeuser Company, one of the world's largest private owners of timberlands, began operations in 1900.