How to Install Bathroom Tile in Corners

Whether you want to apply tile to the outside corner of a bathroom countertop or the inside corner of a wall, you can do it yourself with a little planning and preparation.
You can have standard tiles meet in the corner of a bathroom or use specialty corner tiles.You can have standard tiles meet in the corner of a bathroom or use specialty corner tiles.
Tiling corners follows the same basic procedure as regular tile work. You should always start at the point closest to the floor, such as the bottom of the wall, when installing corner tiles. The lower tiles help provide stability. You can install specialty corner tiles on or in a corner, or you can form the corner by having the tiles from each wall meet in the corner.

Step 1

Measure the width of each side of your corner tile, if you're using a specialty tile. Add the width of your grout line to each measurement. Mark the wall in the corresponding spots to the measurements. Use a pencil or chalk and a straightedge or a ruler to draw a line up each wall or across the surface. This marks the edge of where your corner tile will be set.

Step 2

Mix a batch of thinset mortar per the manufacturer's instructions. If you are installing specialty corner tiles and have mortar left over from setting the surface or wall, use it.

Step 3

Use a notched trowel to apply a thin layer of thinset cement mortar to the corner of the wall or surface.

Step 4

Place a spacer between the floor and the first tile, if needed. Set the first tile into the mortar. Press down lightly but firmly to set the tile in place.

Step 5

Use masking tape, if needed, to hold the tile in place while it dries.

Step 6

Hold a straightedge or level to the top of the first tile to make sure it's plumb, even and straight with the other tiles. Unless uneven grout lines are part of the design element, you want the grout lines for your corner tiles to match up with the tile on your walls or countertop.

Step 7

Put a spacer on top of the bottom tile. Set the next tile. Tape it in place with masking tape, if necessary. Repeat the process until you've covered the entire corner. Let it dry and harden overnight.

Step 8

Remove any masking tape from the surface of the tiles if used. Mix the grout per the manufacturer's instructions. Pull a grout float and grout diagonally across the entire surface of the wall or counter to force grout in between the tiles. Scrape off the excess from the top of the tiles with the float as you work.

Step 9

Wipe away any excess grout on the surface with a damp sponge. Rub the surface with a soft cloth or rag to remove any haze from the surface after the grout dries.

Step 10

Use a tile sealer to seal the entire surface.

Things You Will Need

  • Measuring tape
  • Pencil or chalk
  • Straightedge or ruler
  • Thinset mortar
  • Notched trowel
  • Tile spacers
  • Tile
  • Masking tape
  • Grout
  • Grout float
  • Sponge
  • Soft cloth
  • Tile sealer
  • Tile saw

About the Author

Sienna Condy began writing professionally in 2001 while attending the University of Cincinnati, and she's been at it ever since. Since graduating, she's written everything from marketing materials to articles on removing stains. Today, she enjoys writing about weddings, legal issues, science, health and parenting.