Sep 06, 2011. /Lesprom Network/. U.S. lumber production totaled 13.421 billion board feet through June, up 8.7% compared to the first six months of 2010, as Random Lengths reported. Production in the West was up 6.2% through June; output in the South rose 11.1%. Nationwide, June production totaled 2.324 billion feet, up 6.3% from May and 10.4% from the June 2010 total.