Shape of the sink
When choosing the best undermount sink for your kitchen, the shape and size of the sink is the first and most important consideration. Kitchen sinks come in a variety of shapes and sizes and feature multiple bowls with separate drains, providing many different options. The top 10 sinks on our list show the wide variety of sink shapes available, from extremely rounded to rectangular to square. Some sinks also have “sharp” corners with rounding radii of just a few millimeters.
When determining the ideal sink shape for your kitchen, consider how you use your current sink or how you plan to use your sink in the future. For example, many households use a double basin with a 50/50 ratio, meaning both basins are the same size. In this scenario, one bowl often becomes the cleaning area for dirty dishes and the other becomes a container for drying clean dishes. Other households prefer a 60/40 ratio between two bowls, with one sink used for washing dishes and the other for preparing food.
It is also important to remember that the sharper the inside corners of the sink, the more difficult it can be to clean the sink, as food particles can easily get stuck in these areas. Many manufacturers boast “easy-to-clean” “small radius” or “zero radius” corners, but customer reviews consistently indicate that the smaller the corner radii, the harder it is to clean the sink. If your kitchen sink sees a lot of use, consider rounded corners to make the sink easier to clean.
Number of bowls
The next important factor is the number of bowls a sink has. The undermount sinks featured in our top ten list offer multiple split-bowl options, including single-, two-, or three-bowl versions. Of course, the first consideration when choosing the number of bowls is how much space you have for your undermount sink. While some single-bowl sinks are the same size (or larger) than double-bowl sinks, most double-bowl sinks require adequate countertop space. It’s also important to think about how you might use your sink and what role the different bowls play if you have more than one.
Two basin sinks allow you to separate clean and dirty dishes, but can also make it difficult to clean large dishes. For this reason, some double-bowl sinks have a lowered divider in the middle to better fit large dishes. Single-bowl sinks make cleaning much easier, but do not provide space for drying the cleaned dishes.
Material and color of the sink
Kitchen sinks come in a variety of materials including porcelain, granite, quartzite and most commonly stainless steel. These materials each have advantages and disadvantages in terms of functionality and are also available in different colors, textures and gloss levels.
Porcelain (and ceramic) sinks are hard, leak-proof and non-porous, allowing them to be used frequently without requiring much maintenance. The disadvantage of porcelain is that the coating is often very susceptible to chipping.
A granite sink is expensive but stylish and beautiful. Thanks to the wide range of colors, textures and finishes, you can easily match a granite sink to your countertops, your cabinets and the rest of your decor. Granite is a porous material that collects a lot of stains and dirt if not cleaned regularly.
Pure quartz or quartzite sinks are some of the most expensive sink materials you can get your hands on, but they are incredibly durable and can withstand all kinds of knocks and abuse. Quartzite’s only weakness (aside from price) is its lack of heat resistance. High temperatures can easily damage the sink.
Stainless steel sinks are one of the most widely used sinks due to their great combination of affordability and functionality. And modern stainless steel manufacturers are careful to offer sinks in a variety of colors and finishes, so you’re not limited to the classic silver metallic look. Stainless steel can withstand high impact, heat, impact, rust and corrosion and is relatively insensitive to germs and bacteria.
Price and guarantee
One final consideration to make when looking for an undermount sink for your home is the price and the warranty offered. The purchase price of the sink does not include the labor required for installation or any plumbing adjustments that may be required. Heavy sink materials like granite or quartzite may also require additional reinforcement to your cabinets and countertops, which can increase installation costs.
All of the sink manufacturers on our list offer limited lifetime warranties, which is a great way to feel confident about your purchase.