How to Paint a Deck Floor

When deck floors are first installed they can add a remarkable amount of beauty to the exterior of a home.

Although you may only desire to paint the deck floor, it's recommended that you paint the underside of the deck, as well.Although you may only desire to paint the deck floor, it's recommended that you paint the underside of the deck, as well.
However, if it isn't appropriately treated, a deck can warp and rot under the exposure of humidity and harsh weather conditions. In addition, if a deck floor is left unfinished, it can become infested with mold, fungi, and mildew. Fortunately, you can increase the life span of your deck by applying a coat of paint. However, before you get started, you need to know the proper preparation steps required to ensure a long-lasting finish.

Clean the deck floor using a pressure washer. Start the washer on a low setting and increase pressure slowly, being careful not to damage the surface. Allow the surface to dry before continuing.

Prepare the deck floor by applying a coat of latex primer. Brush on the primer using a 4-inch latex paintbrush. Brush along with the grain and not against it.

Allow the deck floor to dry for two full hours, and then apply latex deck paint in the same manner as you did the primer. Do not walk on the deck floor for at least four hours.

Things You Will Need

  • Pressure washer
  • 4-inch latex paintbrush
  • Latex primer
  • Latex deck paint

Tip

  • Although you may only desire to paint the deck floor, it's recommended that you paint the underside of the deck, as well. If you leave the underside of the deck unpainted, it will allow moisture to affect the surface leading to mold, fungi, mildew, rot and warping.

Warning

  • Many pressure washers are surprisingly powerful, capable of splintering wood and irreversibly scarring deck floors. Never bring the tip of the pressure washer closer than one foot to the surface or you may risk permanent damage.

About the Author

Ryan Lawrence is a freelance writer based in Boulder, Colorado. He has been writing professionally since 1999. He has 10 years of experience as a professional painting contractor. Lawrence writes for High Class Blogs and Yodle. He has a bachelor's degree in journalism and public relations with a minor in history from the University of Oklahoma.