Oct 02, 2008. /Lesprom.com/. Weyerhaeuser Company will release 3Q 2008 results on October 31 before the market opens. The company will hold a live conference call at 7 a.m. Pacific (10 a.m. Eastern) on October 31 to discuss 3Q results. Weyerhaeuser is principally engaged in the growing and harvesting of timber; the manufacture, distribution and sale of forest products; and real estate construction, development and related activities.