DIY Mosaic Tile Backsplash

Article Posted By: Home Depot Staff

Easy DIY Mosaic Backsplash

This easy DIY mosaic tile backsplash is gorgeous, easy to maintain, and simple to DIY. Plus, it can be a big help in protecting walls from spills and water damage. By using Simple Mat and Jeffery Court Mosaic Tile, we’ve kept this project extra simple so you can start sprucing up your kitchen in no time.  

Here’s the step-by-step tutorial to create your own easy DIY mosaic tile backsplash.


Materials for Easy DIY Mosaic Backsplash

Tools and Materials


Step 1: Measure Your Wall

To determine the amount of tile you’ll need, calculate your wall square footage by measuring the space and multiplying the width by the height.

Next, add an additional 10 percent to the total to cover small gaps and possible mistakes. 

DIY Mosaic Backsplash Step 1: Measure


Step 2: Clear Your Workspace

Remove all appliances and cookware from your countertop. Depending on your design, you may need to disconnect your stove and move it away from the wall. Follow your manufacturer’s instructions for proper handling. Next, shut off the power to all electrical outlets or light switches in your workspace and remove the faceplates.

Place a layer of cardboard over your countertop to protect it from debris, and use painter’s tape to cover the edges of your countertop, the underside of your cabinet, and any other surfaces you want to keep clean.

DIY Mosaic Backsplash Step 2: Clear Your Workspace


Step 3: Prep the Wall

To prevent hidden damage from showing up later, it’s important that you inspect and repair your kitchen walls before installing your backsplash.

To clean your walls, fill a large bucket with mild soap and water for rinsing. Painted walls can be wiped down with trisodium phosphate and sanded gently, while glossy surfaces are typically sanded and deglossed. Make sure to check the wall behind the stove for any oil or grease stains. These should be cleaned with degreaser or primer for extra tough stains. Allow all surfaces to dry completely before continuing on to the next step.

DIY Mosaic Backsplash: Prep the Wall


Step 4: Apply SimpleMat

SimpleMat is a peel-and-stick material that replaces mortar or adhesive when applying tile to a wall. It’s easier to use and much less messy than troweling on mortar.

DIY Mosaic Backsplash: Apply SimpleMat

Follow the instructions that come with the SimpleMat. Basically, you’ll roll the SimpleMat out on the wall, then trim the material with scissors or a utility knife and then press it on the wall. Make sure to flatten out any air bubbles and creases.

DIY Mosaic Backsplash: Trim SimpleMat with scissors or utility knife


Step 5: Lay the Tile

First, clean the back of the Jeffrey Court Mosaic Tile with a damp sponge and then let it dry completely before setting. Remove clear plastic from SimpleMat and lightly set tile into place using tile spacers. Adjust tiles as needed to ensure it’s level and press firmly into place.

If the space between the top row of tiles and the cabinetry is greater than an inch, use the tile cutter to cut extra tile pieces to fit the space.

DIY Mosaic Backsplash: Lay Tile


Step 6: Grout the Tile

Make sure to grout within 24 hours of setting the tile over SimpleMat. Put on your gloves and apply grout with float and spread evenly at a 45-degree angle. After 2-4 minutes use a grout sponge to lightly shape and smooth the grout joints. 

DIY Mosaic Tile Backsplash: Grout Tile


Step 7: Clean the Backsplash

Wipe residue first with a wet sponge and then with a damp microfiber cloth to remove any excess residue.

Wait 24 hours before using the surface.

DIY Mosaic Tile Backsplash: Clean the Backsplash


Creating a beautiful mosaic tile backsplash is one of the quickest ways to give your kitchen an attention-grabbing upgrade. Take a weekend to tackle this project and you’ll enjoy the benefits for years to come.

DIY Mosaic Tile Backsplash

The Home Depot Home Services installed this mosaic tile backsplash as part of a total makeover of blogger Joni Lay’s kitchen. See more of that gorgeous kitchen remodel here on The Home Depot Blog.

Take a look at more DIY projects here on The Home Depot blog, and follow our Easy DIY Projects board on Pinterest.