70% of the USA’s soft lumber (pine) and gypsum (drywall) are imported from Canada & Mexico. The Homebuilders Association has asked the President to exclude these, but he has not to date. Then there are raw plastics from China in everything from flooring to windows and siding along with appliances. What to expect? The cost in materials to renovate,update,improve a home will increase a good chunk. Also as history has shown us some materials may be difficult to get.