Power sanders can be used to smooth the edges of scraped areas or to clear an entire surface of paint. For big jobs, a commercial-grade, 7-inch sander works best. You can buy one or rent one from an equipment rental company.

Sanding is accomplished in two stages. First, the paint cover is completely removed with coarse sandpaper--60-grit is recommended. This will leave cuts in the wood, so you must then smooth the area with medium sandpaper (100-grit).

Sanding is a meticulous process that requires the following precautions:

1) Make sure that the sander is running at full speed before touching the wheel to the surface.

2) As you bring the sander into contact with the wall, lean on the tool slightly until you hear the motor slow, and keep moving it along the surface so you do not gouge the wood.

3) Keep the sanding wheel at a slight angle (5 to 10 degrees) to the wall; otherwise, the wheel will spin out of control across the surface.

4) Discard sanding disks as they become clogged with paint; otherwise, they will burn the surface.

5) Do not use a power sander in the rain.