How to Cut Sink Hole in Quartz Countertop? Step by Step Guide

To install a sink on a quartz countertop, you just need to cut a sink hole. It’s not as easy as it sounds. A minor mistake can challenge the durability of your quartz countertop.

If you have a little bit of knowledge about cutting stones then you can do it on your own. But if you are unfamiliar with this type of project then you may need professional help.

However, If you are going to cut the countertop by yourself, then this guide will help you. I have explained step by step how to cut sink hole in quartz countertop without any damage.

Step By Step Guide to Cut Quartz Countertop

Now it’s time to dive into the step-by-step guide to cut sink hole in the countertop perfectly. Apply each step with extreme care, especially when cutting the countertop because a wrong can badly affect the fitting of your sink.

Tools You will need:

Before we begin, make sure you have the necessary tools that are listed below. These tools are crucial for the perfect cut of sink hole on the countertop.

  • Measuring tape
  • Painter’s tape
  • Grease marker
  • Safety mask, gloves, and goggles
  • Diamond saw blade
  • Jigsaw or circular saw
  • Leveler or straight-edge
  • Angle grinder

Measure and Mark

Measure the countertop to determine where you have to install the sink. While measuring keep the water piping underneath your cabinet in mind.

Many sinks come with a template that helps to determine the exact dimensions of the sink. If your sink also has this, then place it on your countertop to mark the exact layout of the sink for cutting the countertop.

Use a straight edge or level to draw straight lines connecting the corners of the marked sink outline. If you are installing a drop-in sink, don’t measure the edges of the sink rim. The rims will placed on the countertop surface.

Prepare for Cutting

If your countertop is not installed yet, place it on a flat surface to have perfect cuts. Woden boards can provide a stable surface to cut countertops. Make sure wooden boards are strong enough to bear the weight of the countertop.

Place the masking tape along the cutting lines to have clean cuts without chipping or damaging the quartz countertop.

Related Post: How to Cut Sink Hole in Laminate Countertop?

Start from Corners

Before we begin, do your safety gear especially eye goggles and mask because countertop cutting is dusty work and dust could get into your eyes, nose, and mouth.

Start by drilling holes in each corner of the marked sink opening using a drill with a diamond core bit (if your sink has round corners). Make sure the drill bit drills the holes inside the line of the corner. This will allow for easier manipulation of the saw.

Cut Sink Hole

Now attach the diamond blade to the circular saw or jig saw which one you have and start cutting the countertop along the cutting lines. Take your time to ensure precision cuts.

Slow down your saw for perfect cutting and to avoid any damage and chipping on the countertop. cut the countertop along the cutting lines to connect the drilled corner holes and complete the sink opening cut.

Smooth the Edges

After cutting a sink hole in the countertop, now it’s time to smooth the irregular edges that may left while cutting the countertop. Use a grinder with a diamond profiling bit to smooth and round the edges of the sink opening.

Take your time to achieve a clean and polished look on your countertop. Place the sink into the cutout to ensure a proper fit. If the cut is small you can sand it to fit the sink properly. After that, your quartz countertop is ready to install a sink.

Related post: How to Fix Gap between Sink and Countertop? 5 Effective Methods


Cutting countertops is a time-consuming process. Take your time if you want perfect cutting of your countertop, no matter which countertop you have. In a hurry, if you accidentally make a single irregular cut, it can become a headache for you to resolve it.

Always wear safety gear before cutting any sort of stone. Flying dust can get into your mouth, nose, or eyes that’s why always wear eyeglasses and a safety mask before you begin.

Related Post: How to install dishwasher air gap under countertop?


How to cut a sink hole in a laminate countertop?

A sink hole in a laminate countertop can be cut with the help of a circular saw or jig saw. Place the template of the sink on the countertop and cut the countertop. Take your time to get perfect cutting of the countertop.

What blade to cut quartz countertop?

The best blade to cut quartz countertops is a diamond blade. Diamond blades are known for their hardness and ability to cut through tough materials. Diamond can easily cut any type of countertop.

Cost to cut sink hole in a quartz countertop?

A professional may charge 75-150 dollars to cut sink hole in a quartz countertop. If you can do it yourself then you may some tools including an angle grinder, diamond blade, and some others, which may cost 60-100 dollars.

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