How to Install an Overmount Kitchen Sink
An overmount kitchen sink is one that has a lip slightly wider than the sink opening, so the sink is resting on the countertop, instead of being connected from below as it is in other types of sinks. Most overmount sinks comes with a template showing you exactly how large the countertop hole needs to be, since the security of the sink depends on the sink opening being the right size. Does this Spark an idea?
Things You'll Need
- Pen
- Drill
- 1/2-inch drill bit
- Jigsaw
- Scrap wood
- 3-inch screws
- Plumber's putty
- Knife
- Silicone caulk
Instructions
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1
Place the template that comes with the sink on your countertop. Adjust the template so that the rear edge and front edge are centered on the countertop, unless your countertop calls for an off-center sink. Hold the template in place and trace around it with your pen.
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2
Remove the template. Drill a 1/2-inch hole on the inside of the template line at each of the four corners of the rectangle.
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3
Cut out the left and right sides of the template shape using your jigsaw, running the saw from the bottom drilled hole to the top one. Place your scrap wood across the counter so that each end of the wood crosses over one of the cut lines.
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4
Connect the wood to the countertop, inside the template lines, with 3-inch wood screws. This will prevent the cutout from falling into the cabinetry and tearing the area around the cutout. Complete the two remaining cuts and pull up on the board to remove the cutout piece of countertop.
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5
Apply a thin bead of plumber's putty around the drain holes on the inside of your sink. Push a drain strainer into the hole, pushing down hard to force the putty to create a strong seal. Scrape up any putty that squirts out the edges of the strainer with a knife.
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6
Place the rubber gasket and flange on the bottom of the strainer on the underside of the sink. Slide your faucet into the faucet hole and attach it with the supplied screws.
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7
Apply a long bead of silicone caulk around the underside of the edge of the sink. Turn the sink over and place it into the opening. If your sink comes with clips for the underside of the sink, which help secure the sink to the countertop, attach them to the underside now. Wipe away any sealant that leaked out of the edge of the sink.
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8
Attach the water supply lines located beneath the sink to the two lines running to the faucet. Turn the nuts at the end of the supply lines with a wrench to tighten them.
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9
Connect the three pieces of PVC drain pipes beneath the sink. Once piece will run down from the strainer, one will run in from the wall and a small trap piece will connect the other two. Use PVC cement to connect the PVC pieces and hand-tighten the large nuts on the pipes.
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References
- Photo Credit Martin Poole/Lifesize/Getty Images
