How to Treat a Cedar Deck

Cedar is an ideal material for a deck.

Keep your cedar deck looking new by sealing it at least once a year.Keep your cedar deck looking new by sealing it at least once a year.
It has a beautiful reddish brown hue and is naturally rot resistant. However, cedar should be sealed with a clear penetrating sealant to prevent the weathering process from discoloring the wood over time. You will want to seal your deck at least once a year to keep it looking as beautiful as the day it was installed. It is important to start with a clean, dry surface when treating your deck with a clear sealant in order to have a lasting finish.

Clean the surface of the deck clean with an oxygen bleach deck cleaner and a scrub brush. Rinse the deck off with water. Allow the deck to dry completely.

Test the surface of the deck to make sure it is dry by dropping a few drops of water on the surface. If the water beads up, it is too wet. If it soaks into the surface quickly, the deck is dry.

Pour clear wood deck sealant into a roller pan. Roll on a coat of clear wood deck sealant with a paint roller onto the deck boards in the same direction as the grain. Brush over the surface where you rolled the sealant on using a stain brush to work the sealant into the wood and remove any excess. Continue in this manner until the entire deck is sealed. Wait at least eight hours and apply a second coat. Allow the sealant to dry 72 hours before using the deck.

Things You Will Need

  • Oxygen bleach deck cleaner
  • Scrub brush
  • Bucket water
  • Paint roller
  • Roller pan
  • Stain brush

Tip

  • Seal your deck in late spring and early fall.

Warning

  • Follow safety precautions on the sealant carefully.

About the Author

Jonah Morrissey has been writing for print and online publications since 2000. He began his career as a staff reporter/photographer for a weekly newspaper in upstate New York. Morrissey specializes in topics related to home-and-garden projects, green living and small business. He graduated from Saint Michael's College, earning a B.A. in political science with a minor in journalism and mass communications.