Sanding Engineered Wood Floors: How to Deal with Scratches and Stains

Sep 28, 2023

Reviving Engineered Wood Floors: Effective Sanding Techniques for Scratches and Stains

Engineered wood floors are revered for their beauty, durability, and warmth they bring to any space. Yet, like all flooring, they are susceptible to the regular wear and tear of everyday life. Over time, scratches, dents, and stains can appear, diminishing the shine and appeal of your lovely floors. But fret not! With the right approach, wood floor sanding can bring back the original lustre of your engineered wood floors. This comprehensive guide’ll delve into the art of sanding engineered wood floors and how you can effectively tackle scratches and stains.

Understanding Engineered Wood Floors

Before we dive into the sanding process, it’s vital to understand what sets engineered wood floors apart from other types of wood flooring.

Composition: Engineered wood floors consist of several layers. The top layer, or the wear layer, is made of solid wood, while the underlying layers can be made of plywood, fiberboard, or other wood products.

Durability: Thanks to this multi-layer construction, engineered wood floors are more resistant to humidity and temperature changes compared to solid wood floors.

Sanding Engineered Wood Floors

Why Sanding is Tricky with Engineered Wood Floors

Sanding is a traditional method used to refresh the appearance of wood floors. However, with engineered wood, there are challenges:

  1. Limited Wear Layer: The wear layer on engineered wood floors can vary in thickness, ranging from 0.5mm to 4mm or more. This means you have limited material to work with. Sanding too aggressively or too frequently can wear down this layer, exposing the underlying layers.
  2. Different Reactions: Since engineered floors have multiple layers of different materials, they can respond differently to sanding compared to solid hardwood.

Tools and materials needed

  • Orbital or random orbital sander
  • Sandpaper (various grits: 120, 180, 240)
  • Vacuum cleaner
  • Tack cloth
  • Wood filler (if needed)
  • Stain (if changing colour or covering stains)
  • Polyurethane finish or the finish of your choice
Sanding Engineered Wood Floors
Sanding Engineered Wood Floors

Step-by-Step Guide to Sanding Engineered Wood Floors

1. Prepare the area.

  • Remove Furniture: Clear the room of any furniture, rugs, and decorative items.
  • Clean the Floor: Vacuum the floor thoroughly to remove any dust and debris.

2. Inspect the floor.

  • Identify areas with deep scratches, dents, or stains.
  • Determine the thickness of your wear layer. If it’s too thin, you might need to consider Wood Floor refinishing instead of sanding.

3. Start with coarser sandpaper.

  • Attach a 120-grit sandpaper to your sander.
  • Begin sanding in the direction of the wood grain. Ensure you maintain a steady pace and even pressure.

4. Progress to Finer Grits

  • After the initial pass, switch to 180-grit sandpaper and repeat the process.
  • Finish with 240-grit sandpaper for a smooth surface.

5. Deal with scratches and stains.

  • For deeper scratches, apply wood filler, let it dry, and then sand the area smoothly.
  • If you have stains that didn’t come out with sanding, consider using a wood stain to even out the colour.

6. Clean Up

  • Vacuum the floor thoroughly to remove all sanding dust.
  • Wipe the floor with a tack cloth to ensure it’s entirely dust-free.

7. Apply and Finish

  • Apply a thin coat of your chosen finish, following the manufacturer’s instructions.
  • Let it dry completely before applying a second coat, if necessary.
Sanding Engineered Wood Floors

Maintenance Tips to Reduce Scratches and Stains

  1. Use Protective Pads: Place felt pads under furniture legs to prevent scratching.
  2. Rugs and Mats: Use rugs or mats in high-traffic areas.
  3. Clean Regularly: Vacuum or sweep your floors regularly to remove debris.
  4. Immediate Cleanup: Clean up spills immediately to prevent staining.
Sanding Engineered Wood Floors

Additional Considerations When Sanding Engineered Wood Floors

The Importance of Moisture Measurement

Before sanding, it’s wise to check the moisture level of the engineered wood floor. Extreme moisture levels, both too high and too low, can lead to problems after sanding and refinishing. Use a reliable wood moisture metre to ensure the flooring is within the manufacturer’s recommended moisture range.

Ventilation Matters

Sanding can produce a significant amount of dust. Ensure you have good ventilation to keep the dust from settling everywhere in your home. Opening windows and using fans can help circulate the air and drive out the dust. Don’t forget to cover or remove sensitive items, such as electronics, to protect them from the dust.

Protective gear is a must.

While sanding, always wear protective gear. A good dust mask or respirator is essential to prevent inhaling fine wood dust. Safety goggles will protect your eyes, and ear protection is recommended if you’re using a loud power sander.

Timing and traffic

Remember, after you’ve sanded and applied a fresh coat of finish, you’ll need to let the floor cure properly. This could mean no foot traffic for at least 24-48 hours (or as per the finish manufacturer’s guidelines). Plan accordingly so there’s minimal disruption to your daily routine.

Experiment in a Small Area First

If you’re unsure about the sanding process or the stain or finish’s appearance, always start with a small, inconspicuous area. This will give you an idea of the final look and also let you gauge how the floor reacts to sanding.

Going Professional

While many homeowners take on the challenge of sanding engineered wood floors, there’s no shame in hiring professionals. They have the experience and tools to do the job right, ensuring the longevity and beauty of your floor. If you’re worried about making mistakes or the task seems too daunting, seeking professional help can be a worthwhile investment.


Sanding Engineered Wood Floors

Eco-friendly Disposal

After sanding, you’ll end up with a lot of wood dust and possibly old finish or stain residues. Ensure that you dispose of them responsibly. Many localities have specific guidelines for disposing of home renovation waste, so check with local regulations.

By incorporating these additional considerations into your sanding process, you ensure not only the beauty and longevity of your engineered wood floors but also a safer, more efficient project from start to finish.

Final Thoughts

Sanding engineered wood floors can rejuvenate their appearance, making them look as good as new. However, always approach the task with care and consideration for the unique characteristics of engineered wood. With the right techniques and maintenance, your floors can retain their beauty for years to come.


Useful Links:

Recent Posts