How to Lay Tile on a Plywood Subfloor | Step-by-Step Guide for a Successful Installation

How to Lay Tile on a Plywood Subfloor

Laying tile on a plywood subfloor requires careful preparation and proper techniques to ensure a successful and long-lasting installation. Whether you're renovating a room or building a new home, here is a step-by-step guide on how to lay tile on a plywood subfloor effectively.


How to Lay Tile on a Plywood Subfloor

Assess the Subfloor

Before beginning the tile installation, it's important to assess the condition of the plywood subfloor. Ensure that the subfloor is structurally sound, clean, and level. Repair any damaged areas and address any unevenness or dips by sanding or levelling the surface.


Install Cement Backer Board

To provide a stable and moisture-resistant surface for the tile, it is recommended to install a cement backer board over the plywood subfloor. Measure and cut the backer board to fit the room, leaving a 1/8-inch gap between each sheet for expansion. Attach the backer board to the subfloor using construction-grade screws, ensuring they are evenly spaced.


Apply a Waterproof Membrane

To further protect against moisture, it's advisable to apply a waterproof membrane over the backer board. Follow the manufacturer's instructions to apply the membrane using a trowel or roller. Allow the membrane to dry according to the recommended time.


Plan the Tile Layout

Before installing the tiles, plan the layout to ensure a visually appealing and balanced design. Start by finding the centre of the room and marking it as a reference point. Dry-lay the tiles from the centre outward, making any necessary adjustments to ensure equal tile sizes at the edges of the room.


Mix the Thinset Mortar

Mix the thin-set mortar according to the manufacturer's instructions. Use a mixing paddle or a drill with a mixing attachment to achieve a smooth and consistent consistency. Let the mortar sit for a few minutes to allow it to activate.


Apply the Thinset Mortar

Using a notched trowel, spread a layer of thin-set mortar onto the backer board, starting from the centre and working towards the edges. Use the notched side of the trowel to create grooves in the mortar, which will help the tiles adhere properly. Work in small sections to prevent the mortar from drying before you can lay the tiles.


Lay the Tiles

Place the tiles onto the mortar, pressing them firmly and twisting them slightly to ensure good adhesion. Use tile spacers to maintain even and consistent grout lines between the tiles. Continue laying the tiles, working in sections until the entire floor is covered.


Allow the Tiles to Set

After laying the tiles, allow them to set according to the manufacturer's instructions. This typically takes 24 to 48 hours. Avoid walking on the tiles or applying any pressure during this curing period.


Grout the Tiles

Once the tiles have been set, it's time to grout the joints. Mix the grout according to the manufacturer's instructions and apply it over the tiles, using a grout float to press it into the joints. Wipe away excess grout with a grout sponge and clean the tiles thoroughly. Allow the grout to cure as per the manufacturer's recommendations.


Laying tile on a plywood subfloor requires proper preparation and careful execution. By following these steps, you can ensure a successful tile installation that will stand the test of time. Remember to assess and prepare the subfloor, install cement backer board, and plan the tile layout. With patience and attention to detail, you'll achieve a beautiful and durable tiled floor that adds elegance to your space.


Additional Sources for More Tips on Home Improvement


SnapStone Floating Floors and ceramic tiles Vintage Ceiling Tiles Regrout Ceramic Tile Remove Ceramic Floor Tile Black and White Bath Tile Trend Replace Cracked Marble Tile Installing Tile Over Concrete Painting Ceramic Tile Using Subway Tile in Kitchen Self-Adhesive Floor Tiles

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