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Home and Garden
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Countertops and Kitchen Benches
How to Cut Corian An in-depth guide to measuring, cutting, and finishing Corian Co-authored by Lui Colmenares and Eric McClure
Last Updated: January 30, 2026 References
Measuring and Marking Cuts
|
Cutting with a Circular Saw
|
Finishing the Edges
|
Things You'll Need
|Show more|Show less X
This article was co-authored by Lui Colmenares and by wikiHow staff writer, Eric McClure. Lui Colmenares is a Licensed Home Improvement Contractor and Handyman for Mr. Handy NYC based in New York City, New York. Lui is trained and educated as an industrial engineer and specializes in carpentry, painting, and general handyman work such as mounting TVs, doorknob and deadbolt installation, furniture assembly, tile repair, and grouting. Mr. Handy NYC prides itself on quality work performed with speed, skill, and punctuality. There are 7 references cited in this article, which can be found at the bottom of the page. This article has been viewed 95,047 times.
Corian is a hard-surface building material made out of acrylic and aluminum ore. It is commonly used for countertops and is often mistaken for marble or granite.[1]XResearch source To cut Corian, use a circular saw with a carbide-tipped blade to avoid chipping or cracking the material. Mark your cut line, line up the saw's base plate, and set the blade depth. Then, pull the trigger on the saw and move it forward to create a smooth cut. Be sure to wear protective eyewear and a dust mask or respirator, since the dust created when cutting Corian can irritate the lungs and eyes.
Things You Should Know
Measure the height, length, depth, and width of the installation area. Mark the dimensions on the underside of the Corian slab with a grease marker.
Line up the circular saw's base plate with the top of the grease marking. Use the lever to set the depth of the blade before locking it in.
Pull the trigger on the saw and move it forward to start cutting the Corian. Smooth out the cut edges with 100-150 grit sandpaper.
Steps
Part 1 Part 1 of 3:
Measuring and Marking Cuts
1 Measure the area where you’re installing your Corian. Take measurements for the height, length, depth, and width of your area using a retractable measuring tape. Double-check your measurements before you mark anything on your Corian. Jot down the dimensions on a piece of paper so that you can easily refer to them. You don’t want to waste an entire slab of material because your initial measurement was off!
2 Steady your Corian upside-down on top of your work surface. You can use two sawhorses, a stable workbench, or a cutting table to cut your Corian. Corian can be rather heavy, so you should use a larger workbench if your slab of Corian is particularly big.
Use clamps to hold the Corian in place, if necessary.
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3 Mark your Corian where you’re going to cut with a grease marker. On the underside of your Corian, use your previous measurements to measure out and mark the dimensions that you need to cut with a grease marker. Use a straight edge and tilt your marker at a 45-degree angle to steady your hand as you draw your lines.
You want to mark the underside of the Corian so that there are no visible markings left after you’ve installed it.
4 Attach a triple chip blade and made of tungsten carbide to your saw. You can use any kind of circular saw to cut Corian, but the blade has to be a triple chip blade made out of tungsten carbide. Any other sawblade can damage your Corian or your circular saw. You could also risk losing control of your circular saw, which could be disastrous.
Your saw’s material and blade type will be printed on the side of the saw blade.
Warning: You cannot use a ripping or combination blade, even if it is triple chip and made of tungsten carbide. It will cut your Corian unevenly and permanently damage it.
5 Put on your protective eyewear and dust mask or respirator. While the chemical components of Corian are non-toxic, there are health hazards associated with the cutting of Corian. The dust caused by cutting is an irritant and can damage your lungs, throat, and eyes. Wear protective eyewear and a dust mask or respirator before you start cutting.[2]XResearch source
Make your cuts in a well-ventilated area, preferably outside.
Advertisement Part 2 Part 2 of 3:
Cutting with a Circular Saw
1 Put a straight edge next to the guiding line with clamps for clean cuts. Clamp a leveler 1.5 inches (3.8 cm) away from your grease marking, parallel to the guiding line that you’re going to cut. Place the base plate of your saw against the straight edge where you plan on cutting to ensure that the guiding line on the saw and the grease marking are on top of one another. Make adjustments to the placement of your leveler if you need to move the straight edge.[3]XResearch source
A straight edge will support the base plate of your circular saw while you cut
A leveler is a rectangular tool that contains a measuring side and a sequence of tubes with air bubbles in them. The air bubbles float back and forth depending on how you hold it, and you can tell if you have a level surface if the bubbles float in the middle.
Keep your leveler on the side opposite of your circular saw’s handle. This will put any excess pressure on the straight edge and keep your blade from sliding away as you cut.
Tip: A leveler has have the added benefit of letting you know whether your work surface is flat or not.
2 Put your circular saw on top of the grease marking. On the edge of your slab of Corian, use the guiding line on the base plate of your saw to line it up with the grease marking where you want to cut. Set the depth of your blade by using the lever on the side and lifting your saw blade before locking it in.[4]XResearch source
Make your blade to extend slightly beyond the bottom of your Corian slab, roughly 1–2 inches (2.5–5.1 cm).[5]XResearch source
Put both hands on the upper handles of your circular saw before you start cutting.
3 Pull the trigger on your saw and begin to cut along your line. Wait for the blade to spin at full speed before you start moving it forward. Push your saw forward slightly and as your blade begins to cut the Corian, stop pushing. The saw will do the work for you and the blades will naturally pull it forward.[6]XResearch source
When your cut is complete, wait for your blade to come to a complete stop before moving it.
4 Release the trigger if you encounter kickback or smoke. The friction between your saw blade and the Corian may create a lot of heat. If your saw blade starts to smoke, you’re moving too quickly. Wait for a few minutes and let your blade cool down before you continue to cut. If your blade jumps as you’re cutting and starts kicking back, release the trigger and wait for a moment before you resume cutting.
Advertisement Part 3 Part 3 of 3:
Finishing the Edges
1 Inspect your edges for any pieces you may have missed. Look along every edge where you cut and look for any chunks of Corian that you may have missed with your circular saw. You need the edges of your Corian to be flat when installing it, so if you missed a section, reattach your circular saw and cut again.
2 Start sanding your edges with 100-150 grit sandpaper. Use medium-grit sandpaper to begin smoothing your edges. Attach your sandpaper to your sander and turn it on. Hold it up to the edge of your Corian and carefully press it into the material so that it rests on top. Slide your sander back and forth along each section of the edges to remove excess bumps and sharp edges.[7]XResearch source
You can opt for a sanding belt or a sanding disc. They’ll both work for the job.[8]XResearch source
You can sand your edges by hand, but it will take quite a bit of energy and won’t result in a uniform finish.
3 Move up to a higher grit if you’re having trouble getting a clean finish. If the sides and edges of your Corian are still rough after 2-3 applications of the sandpaper, move up to 320-400 grit. The lighter sandpaper will help wear away the smaller bumps and groves in your Corian.[9]XResearch source
4 Inspect your edges by running your hand along them slowly. Without applying any pressure, run your hand along the edges of your Corian. If each side is smooth to the touch, then you’re done sanding and are ready for installation. If they’re still a little bumpy or coarse, continue sanding before testing them again.
Tip: You can round your edges with your sander if you don’t want each corner to be a perfect 90-degree angle. Just make sure that you’ve accounted for this when you measured your Corian.
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Things You’ll Need
Measuring Your Cuts
Retractable measuring tape
Dust mask or respirator
Protective eyewear
Grease marker
Using Your Circular Saw
Circular saw
Triple-chip tungsten carbide saw blade
Stable work surface
Leveler (optional)
Clamps
Finishing Your Edges
Sandpaper
Sander
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Co-authored by: Lui Colmenares Licensed Contractor This article was co-authored by Lui Colmenares and by wikiHow staff writer, Eric McClure. Lui Colmenares is a Licensed Home Improvement Contractor and Handyman for Mr. Handy NYC based in New York City, New York. Lui is trained and educated as an industrial engineer and specializes in carpentry, painting, and general handyman work such as mounting TVs, doorknob and deadbolt installation, furniture assembly, tile repair, and grouting. Mr. Handy NYC prides itself on quality work performed with speed, skill, and punctuality. This article has been viewed 95,047 times. 44 votes - 90% Co-authors: 5Updated: January 30, 2026 Views: 95,047 Categories: Countertops and Kitchen Benches
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Co-authored by: Lui Colmenares Licensed Contractor This article was co-authored by Lui Colmenares and by wikiHow staff writer, Eric McClure. Lui Colmenares is a Licensed Home Improvement Contractor and Handyman for Mr. Handy NYC based in New York City, New York. Lui is trained and educated as an industrial engineer and specializes in carpentry, painting, and general handyman work such as mounting TVs, doorknob and deadbolt installation, furniture assembly, tile repair, and grouting. Mr. Handy NYC prides itself on quality work performed with speed, skill, and punctuality. This article has been viewed 95,047 times. 44 votes - 90% Co-authors: 5 Updated: January 30, 2026 Views: 95,047 Categories: Countertops and Kitchen Benches 
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1 Measure the area where you’re installing your Corian. Take measurements for the height, length, depth, and width of your area using a retractable measuring tape. Double-check your measurements before you mark anything on your Corian. Jot down the dimensions on a piece of paper so that you can easily refer to them. You don’t want to waste an entire slab of material because your initial measurement was off! 
2 Steady your Corian upside-down on top of your work surface. You can use two sawhorses, a stable workbench, or a cutting table to cut your Corian. Corian can be rather heavy, so you should use a larger workbench if your slab of Corian is particularly big. 
3 Mark your Corian where you’re going to cut with a grease marker. On the underside of your Corian, use your previous measurements to measure out and mark the dimensions that you need to cut with a grease marker. Use a straight edge and tilt your marker at a 45-degree angle to steady your hand as you draw your lines. 
4 Attach a triple chip blade and made of tungsten carbide to your saw. You can use any kind of circular saw to cut Corian, but the blade has to be a triple chip blade made out of tungsten carbide. Any other sawblade can damage your Corian or your circular saw. You could also risk losing control of your circular saw, which could be disastrous. 
5 Put on your protective eyewear and dust mask or respirator. While the chemical components of Corian are non-toxic, there are health hazards associated with the cutting of Corian. The dust caused by cutting is an irritant and can damage your lungs, throat, and eyes. Wear protective eyewear and a dust mask or respirator before you start cutting.[2] 
1 Put a straight edge next to the guiding line with clamps for clean cuts. Clamp a leveler 1.5 inches (3.8 cm) away from your grease marking, parallel to the guiding line that you’re going to cut. Place the base plate of your saw against the straight edge where you plan on cutting to ensure that the guiding line on the saw and the grease marking are on top of one another. Make adjustments to the placement of your leveler if you need to move the straight edge.[3] 
2 Put your circular saw on top of the grease marking. On the edge of your slab of Corian, use the guiding line on the base plate of your saw to line it up with the grease marking where you want to cut. Set the depth of your blade by using the lever on the side and lifting your saw blade before locking it in.[4] 
3 Pull the trigger on your saw and begin to cut along your line. Wait for the blade to spin at full speed before you start moving it forward. Push your saw forward slightly and as your blade begins to cut the Corian, stop pushing. The saw will do the work for you and the blades will naturally pull it forward.[6] 
4 Release the trigger if you encounter kickback or smoke. The friction between your saw blade and the Corian may create a lot of heat. If your saw blade starts to smoke, you’re moving too quickly. Wait for a few minutes and let your blade cool down before you continue to cut. If your blade jumps as you’re cutting and starts kicking back, release the trigger and wait for a moment before you resume cutting. Advertisement 
1 Inspect your edges for any pieces you may have missed. Look along every edge where you cut and look for any chunks of Corian that you may have missed with your circular saw. You need the edges of your Corian to be flat when installing it, so if you missed a section, reattach your circular saw and cut again. 
2 Start sanding your edges with 100-150 grit sandpaper. Use medium-grit sandpaper to begin smoothing your edges. Attach your sandpaper to your sander and turn it on. Hold it up to the edge of your Corian and carefully press it into the material so that it rests on top. Slide your sander back and forth along each section of the edges to remove excess bumps and sharp edges.[7] 
3 Move up to a higher grit if you’re having trouble getting a clean finish. If the sides and edges of your Corian are still rough after 2-3 applications of the sandpaper, move up to 320-400 grit. The lighter sandpaper will help wear away the smaller bumps and groves in your Corian.[9] 
4 Inspect your edges by running your hand along them slowly. Without applying any pressure, run your hand along the edges of your Corian. If each side is smooth to the touch, then you’re done sanding and are ready for installation. If they’re still a little bumpy or coarse, continue sanding before testing them again.