Grit numbers range from 24 (extra-coarse) all the way up to over 1000—though most home improvement projects use sandpaper in a much smaller range, from roughly 60- to 360-grit. It's a common ...

Coarse sandpaper is useful for sanding away layers of paint from surfaces and evening out minor warps and gouges in wooden floorboards. Sixty to 80-grit sandpaper is typically used as a final ...

Pay attention to them: They are the key to your next steps. Change your sandpaper to 80-grit and repeat the process. Your goal is to completely remove the 60-grit sanding marks with those made by ...