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How To Clean Trex Decking Boards How To Clean Trex Decking Boards

Outdoor Furniture

How To Clean Trex Decking Boards

Written by: Chloe Davis

Learn the best methods for cleaning and maintaining your Trex decking boards to keep your outdoor furniture looking beautiful.

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Outdoor furniture adds beauty and functionality to any outdoor space, whether it’s a cozy patio, a spacious deck, or a sprawling backyard. To keep your outdoor furniture looking its best and ensure its longevity, proper care and maintenance are essential. In this article, we will focus on cleaning Trex decking boards, a popular choice for outdoor furniture due to their durability and low maintenance requirements.

Trex decking boards are made from a composite material that combines wood fibers and recycled plastic. This unique composition gives them the look and feel of real wood while offering superior resistance to rotting, fading, and staining. However, like any outdoor surface, Trex decking boards can accumulate dirt, grime, and other debris over time, diminishing their appearance.

By following a few simple steps, you can easily clean and restore your Trex decking boards to their original glory. We will walk you through the materials you’ll need and a step-by-step process to ensure effective cleaning while protecting the integrity of the boards.

So, grab your cleaning supplies and let’s get started on bringing back the shine to your Trex decking boards!

Key Takeaways:

  • Keep your Trex decking boards looking great by removing furniture and debris, sweeping or hosing off dirt, and using a gentle cleaning solution to scrub away stains. Rinse thoroughly and let the boards dry for a sparkling outdoor space.
  • Regularly cleaning and maintaining your Trex decking boards not only enhances their appearance but also helps prevent the buildup of mold, mildew, and other damaging substances. Enjoy a beautiful and safe outdoor space for years to come!

Materials Needed

Before diving into the cleaning process, gather the following materials:

  1. Soft-bristle brush or broom
  2. Bucket
  3. Mild soap or decking cleaner
  4. Water
  5. Garden hose or pressure washer (optional)
  6. Clean cloth or sponge
  7. Protective gloves

These materials are easily accessible and will help achieve effective results without causing any damage to your Trex decking boards. Now that you have everything ready, let’s move on to the step-by-step cleaning process.

Step 1: Remove Furniture and Debris

Before you begin cleaning your Trex decking boards, it’s important to remove any furniture, planters, or other items from the area. This will provide you with a clear and unobstructed space to work with, allowing for thorough and efficient cleaning.

In addition to removing furniture, take the time to clear away any loose debris such as leaves, twigs, and dirt. Use a broom or a soft-bristle brush to sweep off the surface of the decking boards. Pay extra attention to the areas between the boards, as debris can collect there and potentially affect the overall cleanliness of your deck.

By removing furniture and debris, you’ll be able to access all areas of your Trex decking boards easily, ensuring a comprehensive cleaning process.

Once you have cleared the area, you are ready to move on to the next step: sweeping or hosing off loose dirt and debris.

Step 2: Sweep or Hose off Loose Dirt and Debris

Now that you have removed furniture and cleared away any loose debris, it’s time to get rid of the remaining dirt and grime on your Trex decking boards. There are two methods you can use to achieve this – sweeping or hosing off the surface.

If your decking boards are only lightly soiled, a simple sweep with a soft-bristle brush or broom should suffice. Start at one end of the deck and work your way across, using long, sweeping motions to push the dirt towards the edge of the deck. Ensure that you pay attention to the corners and hard-to-reach areas.

If you are dealing with a more significant buildup of dirt or if your decking boards are heavily soiled, you may choose to use a garden hose or pressure washer. This method can be particularly effective in removing stubborn dirt and grime. However, it’s important to use caution when operating a pressure washer as excessive pressure can damage the surface of your Trex decking boards. Always follow the manufacturer’s instructions and keep an appropriate distance from the surface.

Whether you opt for sweeping or hosing off, the goal is to remove as much loose dirt and debris as possible, preparing the decking boards for the next step: preparing the cleaning solution.

Step 3: Prepare the Cleaning Solution

After sweeping or hosing off the loose dirt and debris from your Trex decking boards, it’s time to prepare the cleaning solution. This solution will help remove any remaining stains, grime, and mold that may have accumulated on the surface.

You have a couple of options for creating a cleaning solution. One option is to use a mild soap diluted in water. Look for a soap that is gentle and non-abrasive to avoid damaging the decking boards. Alternatively, you can use a specialized decking cleaner that is specifically formulated for composite materials like Trex.

If you choose to use a mild soap, mix a small amount in a bucket of warm water. Be mindful of the soap concentration – using too much soap can leave a sticky residue on the decking boards. Follow the manufacturer’s instructions for the recommended soap-to-water ratio.

If you decide to go with a specialized decking cleaner, carefully read the instructions on the product packaging. These cleaners usually come in concentrated form and need to be diluted according to the manufacturer’s recommendations.

Once you have prepared the cleaning solution, you are ready to move on to the next step: scrubbing the deck boards to remove stubborn stains and dirt.

To clean Trex decking boards, use a mild soap and water solution with a soft bristle brush. Avoid using abrasive cleaners or pressure washers, as they can damage the surface. Rinse thoroughly with water after cleaning.

Step 4: Scrub the Deck Boards

Now that you have prepared the cleaning solution, it’s time to start scrubbing your Trex decking boards to remove any stubborn stains, grime, and mold. Here’s how:

  1. Start by dipping a soft-bristle brush or sponge into the cleaning solution.
  2. Gently scrub the surface of the decking boards using circular motions. Pay extra attention to areas that are heavily stained or soiled.
  3. For tough stains or mold growth, you may need to apply a bit more pressure. However, be cautious not to scrub too vigorously as it can potentially cause damage to the boards.
  4. Work in small sections, ensuring that you cover the entire surface of the deck boards.
  5. If you encounter any particularly stubborn stains, you can try spot cleaning by applying the cleaning solution directly to the problem area and scrubbing with more intensity.
  6. Continue scrubbing until you have covered the entire deck area.

While scrubbing, it’s important to wear protective gloves to avoid any skin irritation or contact with the cleaning solution.

Once you have thoroughly scrubbed the deck boards and removed the stains and dirt, it’s time to move on to the next step: rinsing off the cleaning solution.

Step 5: Rinse off the Cleaning Solution

After diligently scrubbing your Trex decking boards to remove stains and dirt, it’s time to rinse off the cleaning solution. This step ensures that no residue is left behind and leaves your deck looking clean and refreshed. Here’s how to properly rinse off the cleaning solution:

  1. Fill a bucket with clean water or use a garden hose.
  2. Start at one end of the deck and work your way across, rinsing off the deck boards thoroughly.
  3. If using a hose, adjust the nozzle to a gentle spray setting to avoid applying excessive pressure to the decking boards.
  4. Direct the water flow along the length of the boards, rinsing away any remaining soap or cleaner.
  5. Pay special attention to hard-to-reach areas and corners.
  6. Continue rinsing until all the cleaning solution has been removed.

Make sure to rinse off all the soap or decking cleaner to prevent any residue buildup, as it can attract dirt and leave streaks on your decking boards.

Once you have completed the rinsing process, it’s time for the final step: allowing the deck boards to dry.

Step 6: Let the Deck Boards Dry

After rinsing off the cleaning solution, it’s important to allow your Trex decking boards to thoroughly dry before placing furniture or using the outdoor space. This step ensures that any remaining moisture evaporates and helps prevent the growth of mold or mildew. Here’s what you need to do:

  1. Give the deck boards ample time to air dry naturally. The drying time will vary depending on factors such as weather conditions and the amount of sunlight the area receives.
  2. Avoid walking on the deck boards until they are completely dry to prevent any footprints or marks.
  3. If you need to expedite the drying process, you can use a clean cloth or sponge to gently wipe the moisture off the surface.
  4. Ensure all areas, including the gaps between the boards, are dry.

It’s important to note that leaving the decking boards damp or wet for an extended period can cause water to seep into the composite material, potentially leading to damage or warping.

Once the deck boards are completely dry, you can put back any furniture or accessories you had removed earlier, and enjoy your sparkling clean and well-maintained Trex decking!

Remember, regular cleaning and maintenance will help prolong the life and beauty of your outdoor furniture, ensuring that it continues to be a stunning feature of your outdoor living space for years to come.


Properly cleaning and maintaining your Trex decking boards is crucial for preserving their appearance and longevity. By following these simple steps, you can keep your outdoor furniture looking its best and ready to enjoy for years to come:

  1. Remove furniture and debris to create a clear working space.
  2. Sweep or hose off loose dirt and debris.
  3. Prepare a cleaning solution using a mild soap or specialized decking cleaner.
  4. Gently scrub the deck boards to remove stains and dirt.
  5. Rinse off the cleaning solution thoroughly with water.
  6. Allow the deck boards to air dry completely before using the area.

Regularly cleaning your Trex decking boards not only enhances their appearance but also helps prevent the buildup of mold, mildew, and other damaging substances. Additionally, maintaining a clean deck increases safety, as debris and dirt can create slippery surfaces.

Remember to always follow the manufacturer’s instructions for cleaning and maintenance, as different composite decking brands may have specific recommendations or restrictions.

With proper care, your Trex decking boards will continue to provide a beautiful and functional outdoor space for entertaining, relaxing, and enjoying the great outdoors.

So, put on your cleaning gloves and take the time to give your Trex decking boards the attention they deserve. You’ll be rewarded with a pristine outdoor space that you can take pride in!

Frequently Asked Questions about How To Clean Trex Decking Boards

What is the best way to clean Trex decking boards?

The best way to clean Trex decking boards is to start by sweeping off any debris and then using a mild soap and water solution to scrub the surface. You can also use a pressure washer on a low setting, but be careful not to use too much pressure as it can damage the boards.
Can I use bleach to clean my Trex decking boards?

It is not recommended to use bleach to clean Trex decking boards as it can cause discoloration and damage to the boards. Stick to using a mild soap and water solution or a specialized composite deck cleaner.
How often should I clean my Trex decking boards?

It is recommended to clean your Trex decking boards at least twice a year, or more often if you notice dirt, grime, or mold buildup. Regular cleaning will help maintain the appearance and longevity of your decking boards.
Are there any special tools or equipment I need to clean my Trex decking boards?

You don’t need any special tools or equipment to clean your Trex decking boards. A broom, a scrub brush, and a bucket of soapy water are all you need for regular cleaning. If you prefer, you can also use a pressure washer on a low setting.
How can I prevent mold and mildew from building up on my Trex decking boards?

To prevent mold and mildew buildup on your Trex decking boards, make sure to keep the surface clean and free of debris. Trim back any overhanging trees or plants to allow for better air circulation, and consider using a mold inhibitor spray for added protection.

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