We Value Your Privacy

We and our partners use technology such as cookies on our site to personalise content and ads, provide social media features, and analyse our traffic. Click below to consent to the use of this technology across the web. You can change your mind and change your consent choices at anytime by returning to this site.

Update Consent
Loading ...

How to Remove Rust Stains From a Wooden Deck

Updated February 21, 2017

If your gutters or roof are rusted, water will run over them and will pick up rust particles. This will turn the water orange or yellow, which can then stain your deck if the water is allowed to run over it or pool on it. Prevent this by regularly cleaning your gutters and roof or by coating them with a rust-resistant paint. Clean rust stains on your wood deck with trisodium phosphate.

Loading ...
  1. Mix 1 cup of trisodium phosphate with 1 cup bleach and 1 gallon water. The bleach will help lighten the stain and the trisodium phosphate will clean the area.

  2. Dip a clean brush into the solution.

  3. Scrub the rusted area with the brush. Scrub along the grain until you've lightened the rust stain. Reapply cleaning solution as needed to completely remove the stain.

  4. Mix 118ml. oxalic acid with 1 gallon warm water if the rust stains are still visible.

  5. Dip a paintbrush into the solution and brush it on only the rust stains. Do not brush the wood around the stains or drip the solution as this lightens any wood it comes into contact with.

  6. Let the solution dry completely. The drying process will lighten the wood.

  7. Rinse off the dried solution with clear water.

  8. Let the wood air dry.

  9. Tip

    Do not mix oxalic acid in a metal bucket. Purchase trisodium phosphate from a hardware or home improvement store.

Loading ...

Things You'll Need

  • Trisodium phosphate
  • Bleach
  • Brush
  • Oxalic acid
  • Paintbrush

About the Author

Kaye Wagner has been working in the fields of journalism and public relations since 2006 and is a recipient of a National Hearst Award. She is particularly interested in home-and-garden projects, as well as beauty and fashion writing. An avid traveler, she also writes travel reviews and guides. Wagner earned a Bachelor of Arts in journalism from Brigham Young University.

Loading ...