How to Cut Cultured Marble Countertop

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Last updated: May 13, 2023

Cultured marble may resemble natural marble at first glance; however, this manufactured product doesn’t have the same hardness as marble and other types of stone. This material is a combination of marble powder and resin.

Due to its more delicate nature, many homeowners need help learning how to cut cultured marble countertops correctly. The good news is that the cutting process itself is easy. Start by measuring and marking the piece you plan to cut. Turn the piece upside down, secure it, cut along the mark, smooth the edges, and wipe the newly cut piece.

Continue reading to learn more about the steps in detail.

How to cut cultured marble countertop

Here are the steps to follow when cutting your cultured marble countertop:

1.Measure the cultured marble countertop that you’re planning to cut. Plan out the cuts on the bottom portion of the counter with a marker pen.
2.Turn the cultured marble countertop upside down, revealing the marks you made in the first step.
3.Secure the piece to your workbench and hold it in place with clamps in preparation for the cut.
4.Cut along the marked lines with a grinder or circular saw. Ensure you use a carbide or diamond masonry blade to avoid splinting or damaging your cultured marble counter.
5.Use 6-grit sandpaper to smooth the edges of the newly cut cultured marble to avoid leaving any unwanted scratches.
6.Once you cut your cultured marble countertop and smoothed down its edges using sandpaper, use a wet sponge or towel to wipe the piece.
Elegant marble kitchen island and kitchen countertop with minimal vase against blurred modern kitchen space in the background.

What is the difference between cultured and real marble

Cultured marble is manufactured and is closely related to natural marble. Meanwhile, real marble is a luxury natural stone sourced from the mines. Cultured marble is formed from a combination of synthetic resins and dyes and natural marble.

The manufacturing process of cultured marble countertops is almost similar to that of quartz and onyx counters. The only difference is that cultured marble is known for having many more uses compared to onyx and quartz materials.

Countertops made from cultured marble always feature backsplashes and integrated sinks in the same color and pattern. You’ll only notice a flat underside and thin edge with no seams or caulking.

On the other hand, natural marble countertops feature under-mounted sinks and need grouting or caulking to seal around the sink or backsplash sections. Since it’s a natural stone material, you won’t see consistent coloring or veins, and only the same color and pattern on the underside.

You can save some cash without compromising the design and aesthetic of your project if you use cultured marble as a substitute for natural marble. Cultured marble is among the most stylish and affordable options you can get right now.

Countertops made from this material cost only a third of the price tag of natural marble countertops but this time, with stricter durability. It explains why many homeowners choose cultured marble for their countertops.

There are notable differences between cultured and natural marble.

  • Countertops made from natural marble don’t have integrated sinks or backsplashes.
  • Natural marble comes with a higher price tag.
  • Cultured marble is seamless, while natural marble needs sealing.
  • Unlike real marble, which is natural, cultured marble is considered a synthetic material.
  • Natural marble is more prone to scratches or damage, which makes it less durable. Well-maintained cultured marble, however, can be very durable.
  • Caring for cultured marble is easy, and you can apply a new coat of gel when it leaks to make it as good as new again. Maintenance of natural marble tends to be a bit tricky.

Cultured and natural marble also share a few similarities.

  • Natural and cultured marble is prone to scratches, cracks, and stains.
  • Routine cleaning is recommended for natural and cultured marble.
  • You can repair or restore cultured and natural marble in case of damage.
  • Natural marble and cultured marble both possess high polish and veiny luster.
  • These two types of marble can look the same.
Modern and clean kitchen interior design with marble countertops, minimal pastel green cupboards, white kitchen island and stools

What is the best tool for cutting marble countertops

There are numerous tools you can use for cutting marble countertops. These include a circular saw if you need a lengthy section or a jigsaw for smaller cutouts. Routers are also a great tool if you prefer to shave an edge.

What is the best blade to cut marble countertops

No matter which tool you choose, a diamond or carbide blade is your best option to cut through marble countertops properly.

What is the best way to cut marble countertops

The best way to cut marble countertops is to use the right combination of tools and blades. Before you prepare for the actual cutting process, you need to determine the location where you will be working and the specific type of cut you need.

These two significant factors will help you quickly identify the correct tool for cutting your marble countertops. For instance, if the piece is only decorative, you can cut it using a circular saw, and the device will help you achieve a perfect lengthy cutting finish.

Meanwhile, for more minor cuts, such as the space for sinkholes, the best way of cutting the marble countertop is to use a jigsaw. A jigsaw will let you cut small cutouts of the marble and achieve an even finish. A router can also come in handy for flawless pilling.

It means that the best way to cut marble countertops is to consider the type of work you will do and choose your tool accordingly.

Close-up, Marble kitchen countertop with minimalist white vase and plant

How do you cut marble without cracking or chipping

It would help if you remembered several handy tips and tricks to cut marble without cracking or chipping.

  • Tape off the spot where you will cut with masking tape, and this will prevent chipping while cutting.
  • Cut the marble from the back part, as this will not only prevent chips on the edges during the cut but will also ensure that the chips will only be visible on the back piece and hidden once you’ve installed the material.
  • Use a pair of clamps with a straight edge to cut straight lines. You can push the circular saw against the clamps, allowing you to maintain a straight and steady line down the entire length of the marble.
  • Smooth down any chips that occur with a belt sander or by hand using sandpaper.
  • Wear gloves, a dust mask, and safety glasses when using power tools.

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