The T&G flooring in my bedroom is pretty rubbish. Over the years, it
has dried out a lot, to the point where it's a contour map of knots
that can be felt through the carpet. In thinking about doing the room
up this summer, the options seem to be to either get a big floor
sander thingy on hire and level it or replace the lot. SWMBO think it
would be nice to have a hardwood floor, so it looks like replacement
might be on the cards. Looking for boards, however, almost everything
hardwood I can find seems to be a bit thin for actual floorboards and
seems more to be designed to go over an existing floor, whereupon it
would be pretty thick.

Am I missing the point somewhere here? I know that hardwood is
probably pretty expensive but, if I'm going to rip the existing stuff
up, I'd rather like to re-lay one floor, not two, and to wind up with
roughly the same level I started with. It may be that the most
sensible option is to settle for pine or (more simply) chipboard and
carpet, but I wondered if anyone here can tell me a better way (no,
not a 1 inch layer of car body filler laid using an angle grinder!).

Cheers