Your older home just might contain unexplored treasure. Under the dark finish and all the scuffs and scratches might be a beautiful hardwood floor. Sanding off the old finish with a drum sander gives you a chance to get down to the bare wood and erase many of the scratches and dents. Then you can choose a stain or just put on a clearcoat for a pleasant, warm appearance. With the proper planning and care, you can end up with floors that will actually increase the value of your home.