WASHINGTON — U.S. President Donald Trump’s fresh tariffs on imported wood, furniture and kitchen cabinets took effect Tuesday, a development likely to fuel building costs and pile pressure on homebuyers in an already challenging market.

The duties were imposed to boost U.S. industries and protect national security, according to the White House, and they broaden a slate of sector-specific tariffs Trump has imposed since returning to the presidency.

The latest salvo features a 10% tariff on imports of softwood lumber, while duties on certain upholstered furniture and kitchen cabinets start at 25%.

Come Jan. 1, the rate on imported upholstered furniture is set to rise to 30%, while those on kitchen cabinets and vanities will jump to 50%.

But duties on wood products from Britain will not e

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