While it is possible to paint wood floors without sanding by using a high-adhesion primer, sanding is recommended for the ...

Refinish hardwood floors when the surface is covered in deep scratches, gouges, cracks or other surface damage. Stains from pets or leaks may necessitate a deep sanding and refinishing.

It’s generally best to sand wood floors before priming and painting, Hoffman says. You can use a palm sander or regular sandpaper (he advises starting with coarse grit and finishing with medium).

Painting the floors is usually a simple do-it-yourself job even for the inexperienced homeowner. ... Use a hand-sanding block with medium grit sandpaper and lightly sand the entire floor surface.

Q. Help! I painted the walls in my house recently. Now I notice paint marks on my newly refinished floors. Is there a way to remove the marks without damaging the floors? Alexandria A. If you ...