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How to Create a Mosaic Glass Tile Countertop

Travertine tiles are a beautiful choice for bathroom countertops. Add glass mosaic tiles for a splash of color and a custom look.

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Step 1: Remove Old Vanity

Remove old vanity countertop and sinks.

Step 2: Create Frame for Countertop

Using 2x4s and a drill, attach four boards to the top of the vanity (two in the back, two in the front) to create the base/frame of the countertop (Image 1). Attach the last 2x4 to the front of the other boards to create a lip for the countertop (Image 2).

Step 3: Attach Backer Board

Cut a piece of backer board to size and attach to the top of the 2x4s with a strip screw gun.

Step 4: Cut Hole for Sink

When the countertop is formed, cut a hole(or holes) where you want the sink(s) to be.

Step 5: Lay Travertine Tiles

Spread thinset with a trowel on one half of the countertop (Image 1) and set sheets of travertine tile over the area (Image 2).

Tip: Tile the countertop in sections so that the thinset won’t dry while you're laying out the mosaic glass pieces.

Step 6: Cut Tiles Around Sink

Using a utility knife, cut out the tile where the sink holes are.

Step 7: Plan Mosaic Pattern

Working quickly so thinset does not dry, lay out the glass mosaic tiles over the travertine in desired pattern.

Step 8: Remove Individual Tiles

Once the mosaic tiles are placed, cut out individual travertine pieces with a utility knife.

Step 9: Lay Glass Mosaic Tiles

Back-butter mosaic tiles with thinset and place into open spaces.

Step 10: Finish Tiling

Once all mosaic pieces are set in that section, lay more thinset on the other half of the countertop and continue the process.

Step 11: Apply Grout

Once all tiles are set, let dry, then grout over the entire top and sides of countertop. Wipe countertops clean with a wet sponge.

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