ProductsBuilding Construction Materials Share Email Article Share on LinkedIn Share on X Share on Facebook 2015 Lumber Prices: Up or Down? Lumber will cost more as construction expands. By Charlotte O'Malley December 6, 2013 Lumber prices leveled off in the latter stages of 2013. But Paul Quinn, an analyst with Canada’s RBC Capital Markets, sees inflation ahead over the next two years. TWEETABLES: Lumber Price Forecast 2013-2015: