Panel doors require a bit of troubleshooting when painting. Whereas a completely flat surface door can be painted quickly and without much thought, panel doors need a bit more care. Still, it does not require a great deal of skill, just patience and know-how. Below are ten steps to make the process of painting your panel doors a smooth one.
- Prepare the door for painting by cleaning it thoroughly. A clean door will accept paint better and will prevent lumps or streaks caused by dirt buildup. Be sure to clean the cracks and moldings of your panel door.
- Use sandpaper to lightly scuff the surface. This will help the paint stick better. If there are any areas where paint is chipping, use a putty knife on these spots before sandpapering, then sand over the area. Exterior doors especially may have chipped paint due to weather exposure.
- Use a high-quality paintbrush. You get what you pay for, and a high quality paintbrush will make the job look better. You may want to use a small roller for the flat surfaces, as well, but that is optional.
- Choose semi-gloss sheen when selecting paint for the door. Because it is more durable than eggshell or flat finishes, it may be an especially good choice for exterior doors. Semi-gloss sheen is also easier to clean.
- Either remove door hardware or cover it with masking tape. Be sure to remove hardware before you start painting, as this can often stir up dust caught in the lock cavity.
- If some paint does get on the door hardware, clean it off right away with a damp cloth.
- Place newspapers or cardboard under the door to prevent paint from spilling on your carpet or floor.
- Paint the door panels first, starting with the molding and then painting the interior panel. Work from top to bottom. Finish each panel with an upward brush stroke to prevent dripping.
- Beware of using too much paint at once. Paint can pool in corners and moldings or drip if you use too much. Make the first coat light. You can always add a second coat.
- Paint the stiles and rails last. If the door swings out, paint the hinged edge. If it swings in, paint the lock side edge.
With these tips, you can paint with confidence and then sit back and enjoy your handiwork as you take in your newly painted panel doors.

