The Process of Sanding and Refinishing Engineered Wood Floors

Sep 28, 2023

Reviving the Beauty: Sanding & Refinishing Engineered Wood Floors

Engineered wood floors, a popular choice among homeowners and builders alike, combine the beauty of natural wood with the stability and resilience of a multi-layered construction. As with all wooden floors, over time, they can become scratched, dented, or lose their shine. Thankfully, many engineered wood floors can be sanded and refinished to bring back their original luster and beauty. This blog post will guide you through the process of sanding and refinishing engineered wood floors.

Engineered wood floors have revolutionized the flooring industry, offering a blend of elegance, durability, and versatility. As homeowners increasingly choose these floors for their aesthetic appeal and long-lasting nature, understanding their maintenance becomes crucial. While engineered floors are designed for longevity, like all wood floors, they do show signs of wear over time. However, the good news is that these signs of aging can often be addressed with sanding and refinishing. In this blog post, we’ll delve deep into the process of reviving the charm of your engineered wood floors, ensuring they remain a source of pride and beauty in your home.

Refinishing Engineered Wood Floors

Understanding Engineered Wood Floors

Before diving into the sanding and refinishing process, it’s essential to understand the structure of engineered wood floors.

  • Composition: Engineered wood floors consist of multiple layers. The top layer is a veneer of natural wood, which can vary in thickness from less than a millimeter to several millimeters. Beneath this veneer are layers of plywood, high-density fiberboard, or other materials that provide stability.
  • Refinishing Limitations: Due to the thin top veneer, engineered wood floors can only be sanded and refinished a limited number of times. The thicker the veneer, the more times it can be refinished.
Refinishing Engineered Wood Floors

Preparation Before Sanding

  1. Check the Thickness: Before attempting to wood floor sanding, determine the thickness of the top veneer. If it’s too thin, sanding could damage the floor. Generally, a veneer should be at least 2mm thick to be safely sanded.
  2. Clear the Area: Remove all furniture, rugs, and any other obstacles from the room. This ensures an unobstructed work area.
  3. Clean the Floor: Use a soft broom or vacuum to remove all dirt and debris from the floor. Any particles left behind could scratch the wood during sanding.
Refinishing Engineered Wood Floors

The Sanding Process

Sanding engineered wood floors is a delicate task, requiring careful attention to detail to avoid damaging the veneer.

  1. Choose the Right Sander: Use an orbital sander, which is gentler than a drum sander, especially for engineered floors.
  2. Select the Sandpaper: Start with a coarse grit, like 60 or 80, to remove the old finish and any significant scratches. Gradually move to finer grits (120 and then 220) to smooth the floor.
  3. Sanding Technique: Always sand with the grain of the wood, never against it. Keep the sander moving to avoid gouging the wood. Make multiple passes, each time using finer grit sandpaper.
  4. Edges and Corners: Use a handheld edge sander or sanding block to reach areas that the orbital sander can’t access.
  5. Dust Cleanup: After sanding, vacuum the floor thoroughly. Then, wipe it down with a damp (not wet) cloth to pick up any remaining dust particles.
Refinishing Engineered Wood Floors

Choosing the Right Finish

When refinishing engineered wood floor, you have several finish options to choose from:

  1. Polyurethane: Offers a hard, protective layer. It comes in various sheens from matte to glossy.
  2. Oil-Based Finishes: Penetrate deeper into the wood and offer a more natural look. They require more maintenance but can be spot-repaired more easily.
  3. Water-Based Finishes: Dry faster and have less odor compared to oil-based finishes. They offer good protection and are eco-friendly.
Refinishing Engineered Wood Floors

Applying the Finish

  1. Test the Finish: Before applying the finish to the entire floor, test it on a small, inconspicuous area. This ensures you’re happy with the color and sheen.
  2. Application: Use a lamb’s wool applicator or a synthetic brush to apply the finish. Follow the manufacturer’s instructions carefully.
  3. Multiple Coats: Most finishes require at least two coats. Sand lightly between coats using a fine-grit sandpaper (220 or higher).
  4. Drying Time: Allow the finish to dry as per the manufacturer’s recommendations. Some finishes might take 24 hours or longer to dry completely.
Refinishing Engineered Wood Floors

Post-Refinishing Care

  1. Wait Before Walking: Avoid walking on the freshly finished floor until it’s fully cured. Check the manufacturer’s guidelines for specific wait times.
  2. Furniture: Wait a few days after the finish has dried before moving furniture back into the room. Place felt pads under furniture legs to prevent scratches.
  3. Cleaning: For the first few weeks, only use a soft broom or a dry mop to clean the floor. Avoid using water or wet cleaning methods until the finish has fully cured.
  4. Maintenance: Regularly clean the floor and avoid using harsh chemicals. Reapply a maintenance coat of finish every few years, or as needed, to maintain the floor’s beauty and protection.
Refinishing Engineered Wood Floors


Sanding and refinishing engineered wood floors is a meticulous process that can breathe new life into your floors. With careful preparation, the right tools, and a bit of patience, you can restore the beauty and prolong the life of your engineered wood floors. Always remember to follow manufacturer guidelines and, if unsure, consider hiring a professional to ensure the best results.

The journey of maintaining and restoring engineered wood floors might seem daunting at first, but with the right knowledge and approach, it’s a rewarding endeavor. The process not only ensures that your floors remain as stunning as the day they were installed but also enhances their lifespan, making them a sustainable choice for your home. Whether you decide to embark on this refinishing journey yourself or enlist the expertise of professionals, the result is a refreshed, vibrant floor that continues to enrich your living space. Remember, every scratch tells a story, but it’s up to you how that story unfolds. With proper care, your engineered wood floors can remain a timeless testament to both nature’s beauty and human ingenuity.


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