Jay Treaty to avoid Canadian tariffs

I’m in the middle of planning a residential construction project and I was planning to order Canadian windows… until I found out they’ll be subject to a 25% tariff.

Could some legal experts weigh in on if I crossed the border with my windows myself, I would have to pay import duty/tariffs? Has this been handled in the federal courts yet or would it be a new legal battle?

My reservation is on the Great Lakes so technically on the Canadian border.