We bought our house about 6 yrs ago and had hardwood, white oak, put in prior to moving in. This summer I started to replace the white composit trim with 3" wood trim. I ran into 2 issues and I hope someone on here can help. The first issue is not all of the walls are straight or flat but rather have some concave or curve to them. I'm guessing this is normal for a house built in '94? Anyway, I can't get the trim to follow the curve of the walls. I'm sure I could if I used screws but I don't think that would be the right way, if I'm wrong I'm sure someone will tell me so. When I press the trim to the wall and nail it in it just straightens out when I remove the pressure. Is there a way to solve this issue? I did not use liquid nails and doubt it would work based on how much pressure I have to apply to get the trim to bend in some places.
The other issue I have is that apparently my floor is also not flat or level. Again I tried to apply downward pressure on the trim boards but then my cuts were out of whack.
Any thoughts on one or both issues would be greatly appreciated.
EDIT: So it looks like the pics are not going to display so here are links.
Concave wall issue:
Nonlevel floor issue: