What Is A Dual Mount Kitchen Sink – Everything about it

what is a dual mount sink

The dual mount sink may not be the first choice that comes to mind when considering a kitchen sink, but it can be a suitable option in certain situations. So, what exactly is a dual mount kitchen sink and how do you install it? In this article, we will provide a comprehensive guide to everything you need to know about dual mount kitchen sinks.

Understanding Dual Mount Kitchen Sink

As the name suggests, a dual mount kitchen sink is a type of sink that offers two installation options: overmount sink and undermount sink. This versatility is made possible by its cleverly designed flat rim. The flat edge helps seal the sink hole and allows for easy wiping from the counter directly into the sink.

Choosing Between Undermount and Overmount


An overmount kitchen sink is not limited in size by the walls of your cabinet. If your countertop is made of a delicate material like marble, an overmount sink offers better protection for the edges. Additionally, overmount sinks are generally more affordable and easier to install compared to undermount sinks.

On the other hand, undermount sinks are typically attached with a two-part epoxy adhesive and sealed with silicone caulking around the perimeter. If you opt for an undermount sink, it is advisable to seek the assistance of a professional or someone experienced in sink installation.

It’s worth noting that drop-in sinks, also known as self-rimming or top-mount sinks, are still the most common type of kitchen sink. They have a visible lip that rests flat on the countertop. Unlike undermount sinks, the rim of a drop-in sink is not visible since it rests against the bottom of the counter.

Installation Guide for Dual Mount Kitchen Sink

Overmount Sink

Installing a dual mount sink with an overmount style is relatively straightforward. The sink has a flat edge that works well with laminate, tile, or wooden countertops. The low-profile edge makes it easy to seal and wipe any spills or debris directly into the sink for disposal.

Top-mounted or plug-in sinks are popular choices for DIY enthusiasts, as they are easier to install. However, if you prefer to hire a professional for the installation, it can be a quick and affordable task.

Overmount sinks are also a suitable option for countertop materials with more vulnerabilities, such as wood or stained and sealed countertops. The flat edges of the sink provide added protection against damage and debris.

Undermount Sink

Installing a sink that hangs from below requires more effort but offers a visually appealing result. There are three methods or “looks” to choose from, depending on how you want the sink edges to be displayed.

  • Front display: This method exposes a small portion of the sink edge, as the countertop stops before the sink descends.
  • Negative reveal: With this method, the sink edges are completely hidden, and the countertop hangs just above the sink.
  • Flush appearance: This method aligns the countertop with the sink edge, creating a seamless and integrated look.

Undermount sinks provide a clean and stylish appearance in the kitchen. They also offer a few extra inches of usable countertop space and make it easier to brush debris or cuttings into the sink for disposal.


Choosing a sink installation method can be a daunting task, but a dual mount kitchen sink offers a great solution. With its versatility and various installation options, it provides flexibility and durability for any kitchen. Whether you opt for an undermount or overmount style, a dual mount kitchen sink can enhance the functionality and aesthetics of your space.

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