New rates vary by company. West Fraser goes from 9 percent to 11.4 percent, Canfor from 4.6 to 21 percent, Resolute Forest from 20.3 to 30.2 percent, and J.D. Irving from 4.2 to 15.8 percent.
Home builders, who had been urging for a removal of tariffs, expressed their disappointment.
"At a time when soaring lumber prices have added nearly $36,000 to the price of a new home and priced millions of middle class households out of the housing market, the Biden administration's preliminary finding to double the tariffs on Canadian lumber shipments shows the White House does not care about the plight of American home buyers and renters who have been forced to pay much higher costs for housing," said National Association of Home Builders chairman Chuck Fowke.