Sanding wood floors is a process of removing the top layer of finish, as well as any scratches, dents, or imperfections on the surface of the wood, to restore its natural beauty and luster. The process typically involves the use of a heavy-duty sanding machine that is specifically designed for sanding hardwood floors.

Here are the general steps involved in sanding wood floors:

1.    Preparation: The room where the sanding will take place is cleared of all furniture and other objects. The flooring is also checked for any protruding nails or staples that could damage the sanding machine.

2.    Coarse sanding: The sanding process begins with a coarse-grit sandpaper that removes the top layer of the finish and any scratches or imperfections on the surface of the wood. The sanding machine is operated in the direction of the wood grain to prevent damage.

3.    Medium sanding: Once the coarse sanding is complete, medium-grit sandpaper is used to smooth out the surface of the wood and remove any remaining scratches or imperfections.

4.    Fine sanding: Finally, fine-grit sandpaper is used to create a smooth, even surface on the wood. This step is critical to achieving a high-quality finish.

5.    Cleanup: Once the sanding is complete, the room is thoroughly cleaned to remove any sawdust or debris. The flooring is then ready for finishing or staining, depending on the desired look.