I'm planning to rent a sander and refinish the ugly floor that is the darker floor in the photo. I'm also planning to pull up the carpet which has nice hardwood under it in good shape (no refinishing needed).
So how do I transition between one room that is being refinished and another that is not? I want to make sure there isn't an abrupt line from one room to the next where the new polyurethane ends and the existing floor starts. As you can see in the photo whoever did the floor previously didn't know either. I have this issue several places int he house where one room needs a new coat of polyurethane and the other does not. Some of the doorways between rooms are double wide so I'd rather not add a threshold strip if there is away to nicely transition the refinishing. any ideas how to go between rooms like this?