How to Drill Into Corian Countertops

Corian countertops are popular for modern kitchens and bathrooms due to their durability, resilience, and aesthetic appeal. These countertops provide an ideal surface for cutting, cooking, and preparing your favorite meals. However, if you need to install a new fixture or appliance, you might need to drill a hole into your Corian countertop.

How to Drill Into Corian Countertops

Drilling through this material can be tricky, and without the proper technique, you might damage your countertop. This comprehensive guide will show you how to drill into Corian countertops safely and efficiently.

Can You Drill Into Corian Countertops?

Corian countertops are popular among homeowners due to their durability and aesthetic appeal. However, one question that often arises is whether it is possible to drill into them. The answer is yes but with some precautions. Corian is a solid surface material composed of acrylic and polyester. While it is durable but also brittle and prone to cracking if drilled incorrectly.

You should use the appropriate drill bit and drilling technique to avoid damaging the countertop. With careful planning and execution, you can successfully install hooks, fixtures, or other items on your Corian countertop without any issues.

Why Should You Drill Into Corian Countertops?

Corian countertops offer numerous advantages, and one of them is their strength and durability. The material is non-porous, which means that it doesn’t allow water or moisture to penetrate its surface. That makes it resistant to stains, mold, and bacterial growth. However, when it comes to kitchen worktops, you need to drill holes to install sinks, faucets, and other fixtures.

The Material is Non-porous

Fortunately, drilling into Corian countertops is easy and doesn’t compromise their integrity. You can create precise holes without cracking or chipping the surface with the right tools and techniques. Moreover, Corian countertops come in a wide range of colors and textures, allowing you to match them with your kitchen design and style. So whether you’re renovating your kitchen or building a new home, Corian countertops are a reliable and beautiful choice.

7 Steps to Follow on How to Drill Into Corian Countertops

Step 1. Tools and Materials

Before you start drilling through your Corian countertop, first, you need to gather the tools and materials you’ll need. These include a drill with a carbide-tipped masonry bit (at least 3/16 inches thick), masking tape, a level or protractor, and a spray bottle filled with water. If you don’t have a carbide-tipped masonry bit, purchase one to ensure that it can penetrate harder surfaces without slipping or skipping.

The water spray bottle is essential in keeping the bit cool as you make the hole.

Step 2. Marking the Hole

Now that you have your tools ready, it’s time to mark the hole’s placement. Use the masking tape to create a circular template around the spot where you want to drill the hole. The template should be slightly larger than the hole to allow for error or any possible changes in positioning. Use the level or protractor to ensure the spot is level.

Mark the Hole's Placement

Step 3. Drilling the Hole

Once the position of the hole is marked, you can start drilling. First, plug in and turn on the drill to warm. Put a strip of masking tape on the surface above the hole to stop any possible chipping or cracking. Then, spray water on the surface to reduce the heat that will be generated as you drill. Start drilling in a slow, continuous motion without applying excessive pressure. The water spray bottle should be used to prevent the bit from overheating. Keep drilling until you reach the material’s bottom or the surface of the counter gathers debris.

Step 4. Finishing the Hole

Once you’ve drilled through the Corian countertop, remove the masking tape and gently sand the hole’s edges using fine-grit sandpaper. Do not force the sandpaper into the hole, as it may damage the countertop’s edges. Clean the countertop surface and the drill bit to remove any debris or dust that may have accumulated.

Step 5. Maintenance

Use caulking or a sealant to fill the gap around the fixture to keep the hole’s edges from chipping or cracking. This will help prevent water seepage and other forms of damage. Additionally, avoid using abrasive cleaners or tools on the Corian countertop, as they can scratch the surface or compromise the material’s integrity.

Step 6. Installing the Fixture

Once the hole is ready, you can install the fixture you choose. Make sure to use screws designed for Corian countertops and that they are long enough to secure the fixture but not too long otherwise, it will damage the countertop’s surface. Use a screwdriver to tighten the screws into place.

Use Screws Designed for Corian Countertops

Step 7. Clean Up and Enjoy

Once the fixture is in place, clean up any debris or dust that you may have generated during the drilling process. With its stylish new addition, you can now enjoy your newly drilled Corian countertop!

That’s it! You’ve now learned the basics of how to drill into Corian countertops. The process is simple and straightforward, but take your time and use the right tools to finish the job without any issues. Good luck!

5 Considerations Things When You Need to Drill Into Corian Countertops

1. The Type of Drill Bit You Need

When drilling into Corian countertops, it is important to use the right type of drill bit. A standard drill bit will not work on Corian, as it is a harder material. Instead, you will need to use a carbide-tipped drill bit specifically designed for drilling into hard materials.

2. The Speed of the Drill Bit

Another consideration is the speed of the drill bit. Corian is a hard material, so you will need to use a slower speed when drilling into it. If you use too high of a speed, the drill bit may overheat and damage the countertop.

3. The Size of the Drill Bit

The size of the drill bit is also important when drilling into Corian countertops. If the drill bit is too small, it will not be able to penetrate the hard surface of the countertop. On the other hand, if the drill bit is too large, it may crack or chip the countertop.

4. The Direction of the Drill Bit

When drilling into Corian countertops, drilling in a straight line is important. If you try to drill at an angle, the drill bit may slip and damage the countertop.

5. Use a Drill Press

It is best to use a drill press when drilling into Corian countertops if possible. A drill press will provide more control and help to ensure that you drill in a straight line.

Drill Press When Drilling

5 Benefits of Drill Into Corian Countertops

1. Easy to Clean

One of the benefits of Corian countertops is that they are easy to clean. Unlike other materials, such as granite or marble, Corian does not require special cleaners or sealants. You only need to wipe it down with a damp cloth and mild soap.

2. Durable

Corian countertops are also very durable. They are resistant to scratches, stains, and heat. Additionally, they will not chip or crack as other materials can.

3. Non-Porous

Another benefit of Corian countertops is that they are non-porous. This means they will not absorb spills or stains like other materials. Additionally, this makes them more resistant to bacteria and mold growth.

4. Wide Variety of Colors and Patterns

Corian countertops come in a wide variety of colors and patterns. This allows you to find the perfect look for your kitchen or bathroom.

5. Easy to repair

If your Corian countertop does become damaged, it is easy to repair. You can simply sand down the area and reapply the finish.

Some Common Mistakes People Make When Trying to Drill Into Corian Countertops

Drilling into Corian countertops can be quite tricky, especially if you haven’t done it before. Unfortunately, some common mistakes can make your grilling experience even more challenging. One of the biggest errors people make is using the wrong drill bit. Although Corian is a relatively soft material, using the wrong drill bit can result in cracks and chips, ruining your countertop’s appearance.

Another mistake is drilling too fast, which can cause the bit to skip around the surface and damage the counters. Finally, not properly securing the countertop can cause it to shift during drilling, producing unsightly blemishes. You can ensure a successful and attractive end result by avoiding these common mistakes.


Drilling a hole into a Corian countertop may seem like a daunting task, but with the right tools and techniques, this task can be easily accomplished. By following the guidelines in this comprehensive guide, you can ensure that your countertop remains intact and your fixture installation is successful. Remember always to take your time, be patient, and use the right tools and materials for the job.

With these tips, you can drill into Corian countertops safely and efficiently. Thanks for reading our post about how to drill into corian countertops.

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Enrique Howard

Hi, I am Enrique. I started my professional life as a handyman and did a lot of external and internal repair of home and office with a little bit of electric and plumbing support. I have extensive experience in tools testing such as drilling, turning, milling, and non-conventional machining like EDM. So let me help you on your journey towards becoming an enlightened DIYer with amazing tools that you can use on your project.

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