Sanding and Refinishing Engineered Wood Floors

Sep 28, 2023

Revitalizing Engineered Wood Floors: A Comprehensive Guide to Sanding & Refinishing

Engineered wood floors are a fantastic alternative to traditional hardwood floors, offering many of the same aesthetic benefits with added versatility. However, like their solid wood counterparts, engineered floors can become worn, scratched, and lose their original sheen. Luckily, sanding and refinishing can breathe new life into them. But, how do you go about this process without damaging the floors? Let’s dive in.

Engineered wood floors have taken the world of interior design by storm. With their combination of practicality and aesthetics, they have become the flooring choice for many homeowners and designers alike. But like all good things, they are subject to wear and tear over time. However, there’s no need to panic or rush into replacing them. With the correct approach, sanding and refinishing Engineered Wood Floors, these floors can restore their former glory, making them look brand new. This comprehensive guide will walk you through everything you need to know about bringing back the shine to your engineered wood floors.

Engineered Wood Floors

1. Understanding Engineered Wood Floors

Before you begin your Wood Floor refinishing process, it’s essential to understand the nature of engineered wood.

1.1 Composition

Engineered wood floors are comprised of multiple layers:

  • Top Layer: This is the veneer, a thin layer of real hardwood.
  • Core Layers: Made of plywood, high-density fiberboard, or hardwood, these layers provide stability.

The thickness of the veneer determines how many times you can refinish the floor.

1.2 Advantages Over Hardwood

  • Versatility: Suitable for basements and over concrete slabs.
  • Stability: less prone to warping or expanding due to humidity.
  • Cost: Typically, it is more cost-effective than solid hardwood.
Engineered Wood Floors

2. When to Refinish Your Engineered Wood Floor

2.1 Signs Your Floor Needs Refinishing

  • Visible scratches and dings.
  • Dullness and lack of sheen
  • Discoloration or stains that can’t be cleaned.

2.2 Check the veneer thickness.

Before deciding to refinish, measure the veneer’s thickness. A thick veneer of 2mm or more can be sanded and refinished multiple times, while a thin veneer (0.5mm to 1mm) might be suitable for light sanding or a single refinish.

Engineered Wood Floors
Engineered Wood Floors

3. Sanding Engineered Wood Floors

3.1 Equipment Needed

  • Sanding machine (orbital or drum sander)
  • Edge sander
  • Sandpaper (various grits)
  • Vacuum cleaner
  • Protective gear (mask, goggles, ear protection)

3.2 Sanding Process

  1. Preparation: Remove furniture, fixtures, and baseboards. Cover vents and doors to prevent dust from spreading.
  2. Start with Coarse Grit: Using a 40- or 60-grit sandpaper, sand the entire floor. Keep the sander moving to avoid gouging.
  3. Medium Grit: Switch to an 80-grit sandpaper to smooth out the roughness.
  4. Fine Grit: Finish with 120 or 150-grit sandpaper for a smooth surface.
  5. Edges: Use the edge sander to reach areas the main sander couldn’t.
  6. Clean Up: Vacuum the entire floor and wipe it down with a damp cloth.
Engineered Wood Floors

4. Refinishing Engineered Wood Floors

4.1 Selecting the Finish

There are several types of finishes available:

  • Water-Based Polyurethane: Dries quickly and has a low odour.
  • Oil-Based Polyurethane: Takes longer to dry but offers a richer hue.
  • Natural Oil Finish: eco-friendly and provides a natural look.

4.2 Applying the Finish

  1. Stir, Don’t Shake: Stir the finish to avoid bubbles.
  2. Test: Apply the finish in an inconspicuous area to check the colour and adhesion.
  3. Application: Use a brush or roller to apply the finish. Move in the direction of the wood grain.
  4. Drying: Let each coat dry as per the manufacturer’s instructions.
  5. Recoating: Sand lightly between coats using a fine-grit sandpaper.
Engineered Wood Floors

5. Caring for Your Refinished Floor

5.1 Cleaning

Use a dry or damp mop. Avoid excessive water and strong detergents.

5.2 Preventing Scratches

  • Use felt pads under furniture.
  • Place rugs in high-traffic areas.
  • Keep pet nails trimmed.

5.3 Periodic Maintenance

Consider a maintenance coat every few years to keep your floor looking new.

Engineered Wood Floors

6. Common Mistakes to Avoid

When sanding and refinishing engineered wood floors, being aware of common pitfalls can save you time and money and prevent damage to your floor.

6.1 Over-Sanding

The veneer on engineered wood is thin, so aggressive sanding can wear through this layer, exposing the layers beneath. Always check the veneer’s thickness and sand accordingly.

6.2 Skipping Grit Levels

Don’t jump from a very coarse sandpaper straight to a fine one. Gradually progress through grit levels to ensure an even, smooth surface.

6.3 Not Testing the Finish

Different finishes can have varied appearances on wood. Always test a small, hidden patch before committing to the entire floor.

6.4 Applying Finish Too Thickly

Too much finish can cause bubbles, streaks, or an uneven coat. Apply thin, even layers, and allow adequate drying time between coats.

Engineered Wood Floors

7. Benefits of a Refinished Floor

7.1 Enhanced Aesthetics

A fresh refinish can make your floor look brand new, enhancing the overall appeal of the room.

7.2 Increased Home Value

Well-maintained and freshly refinished floors can increase the resale value of your home.

7.3 Extended Floor Life

Refinishing not only rejuvenates the appearance but also adds years to the life of your floor by providing a protective layer against wear and tear.

7.4 Cost-Effective

Instead of replacing the entire floor, sanding and refinishing can be a cost-effective solution to restore its beauty.

Engineered Wood Floors

8. Seeking Professional Help

If you’re unsure about the DIY approach, consider hiring a professional. They’ll have:

  • Expertise: They can quickly assess whether your floor can be refinished and recommend the best approach.
  • Tools: Professionals have access to high-quality equipment, ensuring the job is done right.
  • Experience: Their experience can ensure a smooth, even finish and prevent common mistakes.

Remember, while DIY can be satisfying and cost-effective, sometimes getting an expert’s touch can save potential headaches down the line.


Sanding and refinishing engineered wood floors can seem daunting, but with the right knowledge and preparation, it’s entirely doable. The result is a beautifully restored floor that can last for years with proper care. Always consult with a professional if you’re unsure about any part of the process or if your floor’s veneer is too thin for a full refinish.

Revitalising your engineered wood floors through sanding and refinishing is not just about aesthetics; it’s about preserving an investment and adding character to your home. A well-maintained floor not only enhances the beauty of your living space but also adds value to your property. Remember, while the process can be DIY-friendly, sometimes consulting or hiring a professional can ensure optimal results and longevity for your floors. Whichever route you choose, the satisfaction of seeing a rejuvenated floor underfoot is truly unparalleled.


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