Aug 05, 2010. /Lesprom Network/. U.S. lumber production totaled 10.149 billion board feet through May, up 4.1% from the first five months of 2009, as Random Lengths reported. Production in the West was up 11.6%, while the South was down 2.4%. May production nationwide totaled 2.312 billion board feet, up 5.6% from the May 2009 total.