US President Donald Trump’s threatened steel tariffs that don’t kick in for two weeks are impacting US buyers who already are seeing American-made metal cost more than imports.

S President Donald Trump's threatened steel tariffs that don't kick in for two weeks are impacting US buyers who already are seeing American-made metal cost more than imports.

In his third new tariff probe in a week, Trump signed a memo ordering Commerce Secretary Howard Lutnick to initiate a national security investigation into U.S. lumber imports under Section 232 of the Trade Expansion Act of 1962.