How to create a cut out for sinks and cooktops

Donna
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Project Overview

We’ll show you how to cut a hole in your benchtop for a kitchen sink. You can follow the same steps for a cooktop. Starting with an easy way to trace out your cutline on the benchtop. Then you’ll see how to cut the hole with a circular saw and a jigsaw. 
Continue to step-by-step instructions
This D.I.Y. Advice is part of a series How to install your U-shaped kitchen

Step by Step Instructions

1 Mark the cut line for the sink on the benchtop
2 Cut out the hole for the sink
  • Step 1. Mark the cut line for the sink on the benchtop

    Flip the sink over and position it on the bench. Line it up so the basin is directly over one cabinet and the lip is 50-60mm back from the bench edge. Now trace around it with a pencil. Take the sink away and mark out a second outline 10mm inside the first. This will be your cut line.
  • Step 2. Cut out the hole for the sink

    Before you start cutting, make sure there are no pipes or screws under your cut lines. (If there are, you can always remove them temporarily.) Measure the thickness of your bench and set your circular saw blade to cut 10mm deeper than your bench. Now cut along your lines, stopping just before you reach the corners. Then use your jigsaw to cut out the corners. Remove the cut out and your sink is ready to install. You can make this job a little easier by drilling a hole on the inside of your cutline first. Then use the hole as a starting point for cutting out with your jigsaw, and finish off with the circular saw.
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