Hello I just purchased my first home in December. It was built in 1933. I love my old house. We finally got around to ripping up the carpet in the dining room and the oak (I think it's oak) flooring underneath had a beautiful finish, except they only went around the outside of the room (like they went around a rug. It appears to have been covered with carpet most of it's life. The wood in the middle is untouched, unfinished while the outside has a waxy thick finish.
I was wondering how to go about refinishing the floor. Do I just treat it all the same? Should I treat the unfinished stuff with something first? Should I treat the finished stuff with something first. Obviously I can sand it all down quite a bit as they are great/thick boards and in great shape, but just can't figure out if I need to treat the wood differently. It would have been so much easier if they had done the whole thing, I'm stumped. Here is a photo.