The U.S. Commerce Department has announced it is nearly tripling its anti-dumping duties on Canadian lumber imports from 7.66%to 20.56% following its annual review of existing tariffs. The anti-dumping duties are in addition to current countervailing duties set at 6.74%, which would bring the total lumber duties above 27%. And the countervailing duty is expected to move higher soon, with the Commerce Department scheduled to announce its final administrative review of the countervailing order on Aug. 8.