Question: how much do you need to sand cabinets before painting?
Answer: If your cabinets have a factory finish, sand lightly with 120-grit sandpaper or a sanding sponge. If the surface is rough from a previous paint job or poor varnishing job, start with coarser 100-grit paper to remove bumps. Then sand again with 120-grit to get rid of any sanding marks.