I purchased a couple of second hand chairs many months ago with the intention of restoring/changing them; the armless one for myself, and the carver for my mother. This is a back blog from a few months back. Here they are as bought:
I began with re-upholstering them. Nice new squarey fabric:
Then I spent quite a bit of time 'fixing' my chair; in that one of the legs wasn't sitting straight. I took it apart, sanded, glued and re-set it, filled in the holey bits, but now that I've been using it, it's gone back to how it was before, which was a shoogly chair at best.
Part II here