How To Install Pre-Finished Engineered Flooring

Installing pre-finished engineered flooring is a great way to upgrade your home’s interior with a beautiful wood floor in just a day. This type of flooring offers the look of hardwood with added durability and easier installation. In this guide, we’ll walk you through the process of installing pre-finished engineered flooring, from preparation to finishing touches. In the video above, This Old House general contractor Tom Silva helps a homeowner with the installation process.

What Is Pre-Finished Engineered Flooring?

Unlike solid hardwood, engineered flooring consists of the following layers:

• A thin top layer of real wood veneer
• A plywood or medium-density fiberboard (MDF) core
• A bottom layer for added stability

This construction makes engineered flooring more resistant to moisture and temperature changes compared to solid hardwood. It’s pre-finished at the factory, eliminating the need for on-site sanding and finishing. While solid hardwood costs between $5 and $28 per square foot, engineered hardwood costs $4.50–$16 per square foot, according to Angi.

Pre-finished engineered flooring offers quick installation and no need for on-site finishing. It can be installed over various subfloors, including concrete, and has greater stability in varying humidity levels than hardwood. A wide range of wood species and finishes are available.

Floating vs. Glue-Down Engineered Flooring Installation

These are the two primary methods for installing engineered flooring. Both methods have benefits, and the choice often depends on personal preference and specific room conditions.

• Floating installation: This method, demonstrated by Silva, involves connecting the planks to each other rather than attaching them to the subfloor. It’s fast and easy for a DIY installation.
• Glue-down installation: This method involves adhering the flooring directly to the subfloor. It provides a more solid feel underfoot but requires more skill and time to install.

Preparing for Engineered Flooring Installation

Follow these steps to ensure your subfloor is ready for installation:

1. Remove existing flooring and clean the subfloor thoroughly.
2. Check for levelness and repair any uneven areas.
3. Ensure the subfloor is dry and free from moisture issues.
4. Acclimate the flooring to the room’s temperature and humidity for at least 48 hours.

Tools and Materials Needed

Gather the following tools and materials before starting:

• Circular saw
• Flexible hole saw for precise cuts
• Flat pry bar
• Hammer
• Japanese-style pull saw
• Measuring tape
• Miter saw
• Pencil
• Pre-finished engineered flooring
• Safety glasses and knee pads
• Spacers
• Tapping block
• Underlayment (if required)

Preparing the Subfloor

Remove any existing baseboards or trim. Sweep and vacuum the subfloor to eliminate debris that might affect the installation. Check for any protruding nails or screws and secure them to avoid bumps in the flooring. Fill any large gaps or cracks with an appropriate filler to ensure an even surface. If you’re installing pre-finished engineered flooring over concrete, make sure it’s completely cured and dry to prevent moisture damage.

Installation Process for Pre-Finished Engineered Flooring

Installing pre-finished engineered flooring is a straightforward process that can be completed in a day. Follow these steps for a successful installation.

1. Trim Door Jambs and Casings

Place a piece of flooring on the subfloor next to the door jamb. Use a pull saw to cut the bottom of the jamb, allowing the flooring to slide underneath. Repeat this process for all door jambs and casings in the room.

2. Install Underlayment

Roll out the foam-rubber underlayment over the subfloor. Butt the seams together without overlapping. Secure the underlayment to the subfloor using a staple gun.

3. Begin Laying the Flooring

Start along the longest straight wall, placing the first plank with its grooved edge facing out. Leave a 1/4-inch expansion gap between the plank and the wall. Use spacers to maintain this gap consistently.

4. Continue Installing Rows

Continue the installation by measuring and cutting the last plank in each row to fit, remembering to leave the expansion gap. Start the next row with the cut piece from the previous row to create a staggered joint pattern. Connect the planks by angling the tongue into the groove and pressing down. Use a tapping block and hammer to ensure tight seams between planks that prevent gaps or movement.

5. Install the Final Row

Measure the width needed for the final row, accounting for the expansion gap. Rip the planks to the required width using a circular saw. Install the final row using a pry bar to pull the planks tightly together. Make sure the last row fits snugly without force.

Finishing Touches for Your Engineered Flooring

After installing the flooring, complete these final touches for a polished look:

1. Measure and cut transition moldings to fit doorways and adjoining rooms.
2. Secure the moldings to the subfloor, not the floating floor, to allow for movement.
3. Ensure the moldings blend seamlessly with the room’s design.

Adding Shoe Molding

Install shoe molding around the room’s perimeter to cover the expansion gap. Nail the shoe molding to the baseboards, not the flooring, to allow for expansion and contraction. 

Cleaning and Maintenance

Clean the newly installed floor with a product recommended by the manufacturer. Place felt pads under furniture legs to prevent scratches. Use area rugs in high-traffic zones to protect the flooring and keep it looking new. 

Common Mistakes To Avoid When Installing Pre-Finished Flooring

When installing pre-finished engineered flooring, be mindful of these common mistakes:

• Skipping subfloor preparation: A well-prepared subfloor is important for a smooth installation. Make sure it’s clean, level, and dry.
• Not leaving enough expansion space: Failing to leave a proper expansion gap can lead to buckling floorboards. Use spacers consistently.
• Incorrectly aligning planks: Misaligned planks can cause gaps and unevenness. Take your time to ensure planks are properly locked.
• Ignoring manufacturer’s guidelines: Each flooring type may have specific instructions. Follow the manufacturer’s guidelines to avoid issues.

Post-Installation Tips For Your Engineered Flooring

Once your flooring is installed and the finishing touches are complete, consider these tips to maintain its beauty and durability:

• Keep humidity levels consistent: Engineered flooring can still react to humidity changes. Aim for 30%–50% humidity inside to prevent warping.
• Avoid abrasive cleaners: Use recommended products to keep your floor clean without damaging the finish.
• Rotate furniture periodically: Move furniture occasionally to prevent uneven wear and sun fading.
• Address spills immediately: Wipe up spills promptly to prevent staining or damage.