How to Install Undermount Sinks Under Tile Countertops

Installaing the Sink

• 1

  Measure the length and width of the counter to find the center.

• 2

  Set the counter top upside down over on the base cabinets or on a set of saw horses.

• 3

  Place the sink upside down on the counter top and trace around it using a pencil. This will give you the outside edge of the sink.

• 4

  Draw a second outline line ½ an inch on the inside of the first line. The second line is going to be used as the cut line.

• 5

  Drill a hole into the counter for the saber saw with a power drill. Place the power drill on the inside of the second line and drill a hole along the pencil line.

• 6

  Insert the saber saw into the hole and begin cutting along the outline.

• 7

  Place the sink upside down over the opening of the countertop.

• 8

  Mark the location of the screw hole in the sink on the countertop with a pencil.

• 9

  Remove the sink and then drill holes into the underside of the sink for the screws using a power drill. Make sure the holes are not deeper than ½ inch.

• 10

  Run a bead of caulk along the underside of the sink along the edge.

• 11

  Place the sink back on the countertop and insert the screws into the holes.

• 12

  Tighten the screws with a screwdriver.

• 13

  Turn the countertop over and secure it into place before laying the tile.

Cutting and Laying the Tile

• 14

  Make a pattern of the sink out of paper or cardboard.

• 15

  Dry fit the tile over the sink and then place your pattern over the top of the sink.

• 16

  Trace around the pattern using felt tip marker to indicate where you will need to cut the tile.

• 17

  Cut the tile using a tile saw. Cut straight lines into the tiles for corners and then break off the pieces. Once that is done sand the edges of the tile with a sandpaper to smooth the edges.

• 18

  Install the tile around the sink to complete the project.