Home Garage Colors The Best Wood Filler for Decking: Choose According to Needs

The Best Wood Filler for Decking: Choose According to Needs

Wood Filler for Decking Decks are a beautiful addition to any home, providing a space for relaxation and outdoor gatherings. […]

Wood Filler for Decking

Decks are a beautiful addition to any home, providing a space for relaxation and outdoor gatherings.

Over time, the wear and tear from weather, foot traffic, and other elements can take a toll on your deck’s appearance. This is where wood filler comes to the rescue.

In this comprehensive guide, we will explore the world of wood fillers for decking. We’ll discuss what wood fillers are, why they are essential for deck maintenance, the different types available, and the factors to consider when choosing the right one.

We’ll provide step-by-step instructions on how to apply wood filler effectively, and offer valuable tips to ensure your deck remains in top-notch condition.

What is Wood Filler?

Wood filler is a versatile product used in woodworking and construction.

It is designed to fill gaps, cracks, and imperfections in wooden surfaces, providing a smooth and uniform finish.

When it comes to decks, wood fillers serve a crucial role in maintaining their integrity and appearance.

Why Use Wood Filler on Decks?

Decks are constantly exposed to the elements, including rain, snow, and harsh UV rays.

This exposure can cause the wood to warp, crack, or develop unsightly holes and gaps.

Wood fillers help to address these issues by sealing gaps and cracks, preventing further damage, and enhancing the deck’s aesthetics.

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The 5 Best Wood Filler for Decking

1. Minwax Stainable Wood Filler: Our Overall Best Pick

minwax stainable wood filler

Minwax Stainable Wood Filler stands out as our top pick for its versatility and excellent finish. This wood filler is specifically designed for use with Minwax penetrating wood stain and the Minwax clear protective finish, but it can also be used with other brands of wood stain for exceptional results.

Ideal for repairing small cracks, nail holes, and knots, Minwax Stainable Wood Filler is easy to work with. It allows you to create a realistic finish by scoring thin lines before staining to mimic the wood’s grain.

While it excels at minor repairs, you can use it for larger ones by applying multiple layers with sufficient drying time between each coat. This filler’s compatibility with both oil-based and water-based stains adds to its versatility.

Minwax Stainable Wood Filler: 16-ounce tub for $12.98


  • Versatile and compatible with both oil-based and water-based stains.
  • Ideal for small repairs, including nail holes and knots.
  • Can create a realistic wood grain finish.
  • Durable and long-lasting when applied correctly.
  • Works well with Minwax wood stain products.
  • Easy to work with and suitable for DIY enthusiasts.


  • May require multiple layers for larger repairs.
  • Staining or painting is necessary for a finished look.

2. JB Weld Quick Wood Wood Repair Epoxy Putty Stick: Best for Small Repairs

jb weld quick wood

For smaller repairs on wooden window and door frames or minor areas of rot, the JB Weld Quick Wood Wood Repair Epoxy Putty Stick is an excellent choice.

This two-part epoxy filler is easy to mix and apply, making it perfect for aesthetic repairs on exterior wooden features. After just an hour, it can be machined or sanded, and it dries to a light tan color that can be easily stained or painted.

One notable advantage of this product is that it won’t shrink or crack when applied correctly. It’s also solvent-free, making it safe for use in confined spaces where ventilation might be an issue. However, it’s not suitable for large structural repairs.

JB Weld Quick Wood Wood Repair Epoxy Putty Stick: 2-ounce stick for $7.99


  • Easy to mix and apply, making it suitable for small repairs.
  • Dries quickly and can be machined or sanded after just an hour.
  • Won’t shrink or crack when applied properly.
  • Solvent-free, making it safe for use in confined spaces.
  • Can be stained or painted for a finished appearance.


  • Not suitable for large structural repairs.
  • Limited to minor aesthetic fixes.

3. PC Products PC Woody Wood Repair Epoxy Paste: Ideal for Large Rotten Areas

pc woody

When you’re dealing with extensive areas of rotten wood, the PC Products PC Woody Wood Repair Epoxy Paste is the right filler for the job. Its high-tech formula ensures it won’t sag or drip while drying, making it perfect for overhead work or intricate repairs.

This two-part epoxy filler requires mixing before application and dries in approximately 40 minutes at average temperatures.

Once dry, it can be painted, stained, or machined, and it boasts excellent resistance to the elements and wood-rotting chemicals. This makes it an ideal choice for large exterior repairs, ensuring your deck remains sturdy and attractive for years to come.

PC Products PC Woody Wood Repair Epoxy Paste: 2-ounce kit for $12.99


  • High-tech formula prevents sagging or dripping during drying.
  • Ideal for extensive repairs and large rotten areas.
  • Can be painted, stained, or machined once dry.
  • Resistant to the elements and wood-rotting chemicals.


  • Requires mixing prior to application.
  • Longer drying time (approximately 40 minutes).
  • May not be as user-friendly for beginners.

4. Bondo Home Solutions Wood Filler: The Most Durable Exterior Filler

bondo home solutions wood filler

If you’re looking for durability, the Bondo Home Solutions Wood Filler is unmatched. This two-part epoxy filler provides a strong and long-lasting repair that won’t shrink or crack over time.

Its water-resistant properties make it suitable for both exterior and interior use, making it an ideal choice for doors, fences, windows, and more.

One notable advantage of this filler is its quick drying time, allowing you to proceed with painting or staining in as little as 25 minutes after application.

While it initially has a brown color, it blends well with most woods and takes paint and stain exceptionally well.

Bondo Home Solutions Wood Filler: 16-ounce tub for $14.98


  • Extremely durable and long-lasting exterior filler.
  • Resistant to water, making it suitable for exterior use.
  • Quick drying time (15 minutes until touch-dry).
  • Can be painted or stained for a seamless finish.


  • Initial brown color may not match all wood types.
  • Strong odor during application, so proper ventilation is necessary.

5. Fomo Wood Latex Wood Filler: Easy Application and Great Finish

fomo wood latex wood filler

For those seeking an easy-to-use wood filler that delivers a fantastic finish, the Fomo Wood Latex Wood Filler is an excellent option.

This latex-based product eliminates the need for mixing, spreading smoothly and filling cracks beautifully. While some sanding may be required, it already provides a relatively smooth surface.

The filler contains a high amount of wood flour with finely ground wood chips, allowing it to take stains and paint like real wood.

It dries quickly, typically becoming touch-dry in just 30 minutes, making it perfect for quick fixes that yield exceptional results.

Fomo Wood Latex Wood Filler: 16-ounce tub for $10.98


  • Easy application, especially for beginners.
  • Provides a smooth and even finish.
  • Quick drying time (approximately 30 minutes until touch-dry).
  • Takes stains and paint well, resembling real wood.
  • Latex-based, eliminating the need for mixing.


  • May require some sanding for a perfectly smooth surface.
  • Not as suitable for extensive or structural repairs.

Factors to Consider When Choosing a Wood Filler for Decks

When selecting the right wood filler for your deck, consider the following factors:

  • Waterproofness: Given the exposure to rain and humidity, opt for a waterproof filler to prevent moisture damage.
  • Durability: Ensure the filler can withstand the rigors of outdoor use, including foot traffic and weather extremes.
  • Paintability: If you plan to paint or stain your deck, choose a filler that can be easily matched to the desired color.
  • Color Match: Select a filler that closely matches the color of your deck wood for a seamless finish.
  • Cost: Evaluate your budget and choose a wood filler that strikes a balance between quality and affordability.
  • Ease of Use: Consider your DIY skills and opt for a filler that matches your level of expertise.

Choosing the Right Wood Filler for Decking

The key to a successful deck repair project lies in choosing the right wood filler for the job. Evaluate the aforementioned factors and select a filler that aligns with your specific needs and preferences.

How to Apply Wood Filler to Decks

Wood filler for decking

Once you’ve chosen the appropriate wood filler, follow these steps for a flawless application:

Preparing the Area

1. Begin by thoroughly cleaning the damaged area, removing dirt, debris, and loose wood.

Mixing the Wood Filler

2. Follow the manufacturer’s instructions to prepare the wood filler. Proper mixing ensures optimal performance.

Applying the Wood Filler

3. Using a putty knife or a similar tool, apply the filler into the gaps and cracks, ensuring it’s slightly overfilled.

Sanding the Wood Filler

4. Allow the filler to dry as recommended by the manufacturer. Once dry, sand it down until it’s flush with the deck surface.

Finishing the Wood Filler

5. To protect the filler from the elements, apply a sealant, paint, or stain that matches your deck’s finish.

Tips for Using Wood Filler on Decks

Here are some valuable tips to keep in mind while working with wood filler on your deck:

  1. Choose the right type of wood filler for your needs.
  2. Prepare the area properly to ensure a clean surface for application.
  3. Mix the wood filler according to the manufacturer’s instructions for the best results.
  4. Apply the wood filler evenly to achieve a smooth finish.
  5. Sand the wood filler until it blends seamlessly with the deck’s surface.
  6. Finish the wood filler with a suitable protective coating to enhance its longevity.


In conclusion, maintaining your deck’s appearance and integrity is essential for long-lasting enjoyment.

By choosing the right wood filler and following proper application techniques, you can keep your deck in excellent condition for years to come.

Invest in the best wood filler for decking, and you’ll ensure that your outdoor space remains a source of pride and relaxation for your home.

Remember, when it comes to deck maintenance, the right wood filler can make all the difference. So, make an informed choice, follow our expert guidance, and keep your deck looking its best with the perfect wood filler for decking.


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Laura Linney

Laura Linney

As an expert in the field of garage walls, I have extensive knowledge and experience in enhancing the aesthetic appeal and functionality of these spaces through color and decoration. I specialize in creating visually appealing and practical designs that transform garages into inviting and organized environments.

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