Pine floor problem
My 1920s house in south Texas is built heavy duty except for the floors. All walls are 1"X8" tongue & grove and all ceiling are 1"X12" T&G. However, the floors are 3/4" thick, 3 1/4" wide pine in lengths 12' or longer. There is no subfloor. The 3/4" thick pine is it, and the floor joists vary in width from 20" to 28" wide. So I have some spring in the floor in a few places. The problem we're having is deciding on just going over the pine with a 3/4" plywood sub floor (we have tall ceiling) and then laying a new hardwood floor on top of that or carefully taking up the pine and putting down a subfloor and then laying back down the original pine. The original pine would need refinishing but I believe we would have a floor closer to what we had anticipated. I believe taking up the pine and installing the sub floor and reinstalling the pine and then refinishing the pine would probably be a little costly compared to the other option. We really like the idea of the long pine boards and hate the idea of small random length boards with a new install. What do you think? Has anyone taken up an old floor and put it back down over a new sub floor? Are we opening up a can of worms that we shouldn't? I'm already wondering how it'll come up without splitting and cracking, etc.