Overmount Vs Undermount Sinks

Ryan M. Grambart
Founder & CEO - CopperSmith
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Ryan M. Grambart

The Difference Between Overmount and Undermount Copper Sinks

Many people who decide to install a copper sink want the sink portion of the installation to be below the countertop surface. Unlike the vessel mount, which leaves the bowl of the sink about the counter surface, this installation ensures that the sink takes up less room and is handier to access. However, even if you decide to install your copper sink below the counter surface, you have two options: overmount and undermount. Do you know how to choose a sink that is the best option for you?

Overmount Copper Sinks

An overmount copper sink is also known as a drop-in sink, and it’s created to be simply placed inside a pre-cut hole in the cabinet. An overmount sink is the simplest solution for DIY installation since this sink is designed for easy installation.

An overmount copper sink “sinks” into the cabinet, leaving a lip between the counter and sink. Many homes have overmount sinks, making this a popular choice for copper sinks. If you want the traditional look seen in most homes, an overmount copper sink is a great option. It is also a great option if you want a thicker rim, which is a design choice some homeowners prefer. A thicker rim around the sink can be an attractive look, especially if the rim has detail.

If you have a countertop made from a more delicate surface prone to warping or chipping, an overmount gives your sink a protective edge, which could reduce the small risk of chipping and other damage. Consider your countertop material when making a choice.

You'll also want to consider cleaning when deciding on the right sink for you. With an overmount sink, you may need to clean up around the edge of the rim, where water can spill. If you have a heavily textured countertop surface, there may be minuscule gaps between the rim and the surface of the counter, allowing water and food debris to get stuck.

Undermount Copper Sinks

An undermount copper sink is mounted underneath the countertop. This creates a “rimless” look and a straight surface between the surface of the sink and the surface of the counter. An undermount sink creates a seamless look and the impression of more space. For some homeowners, this also creates a sleeker look and a more modern appearance.

One thing to consider with undermount sinks is the possibility of chipping. If you have a soft countertop surface, you won’t have a protective edge between the sink and the counter. If you misjudge the distance to the sink and bring down a heavy pot on the edge of the counter, you may damage the counter or even chip it. Many homeowners have undermount sinks with no problems for decades, but if you are concerned about the surface of your countertops, this may be something to consider.


CopperSmith has a huge range of copper sinks, like this double bowl copper kitchen sink, appropriate for different installation options. Visit CopperSmith today to take a look at all the choices and to find your next perfect sink!

November 28, 2016