Kick the Tariff dog too often and it will bite. Huge Aluminum/copper/wood tariffs have moved Canada to export diversely. These supplies are tight and this year's production has been purchased in Europe/Japan/Asia who are short. Since the USA can not plant magic 1 year wood seeds = new growth 10-20 years out. Houses use a lot of wood/copper/aluminum = a bad 2-3 years comes knocking. Plastic(PEX) can make pipes, but they are a lower quality. Bamboo grows fast and can be used for glued under pressure wood for most uses, but it is not cheap made in the USA