Jul 05, 2010. /Lesprom Network/. Canadian lumber production in April reached 2 billion board feet, 29% higher than the same month in 2009, as Random Lengths reported. Production through the first four months of the year reached 7.3 billion board feet, up 18% compared to the 2009 pace through April. British Columbia's output rose 24%, to 3.8 billion board feet through April, which accounted for 53% of the national total.