The real average is closer to 25% of lumber coming from Canada but if you look at specific types like SPF which is important for framing, it’s almost evenly split between US domestic and Canada-sourced. Douglas Fir is heavily sourced from Canada. But some lumber like SYP is almost all US domestic.
And in terms of particular states, tariffing Canada sourced lumber has outsized impact because Canadian lumber has a freight advantage so getting US sourced lumber is going to drive up prices even if Canadian is avoided.
It wouldn’t surprise me if the wine story was equally complicated.