Drop in Sink vs Undermount


It may be hard choosing which sink best suit your kitchen. The drop in sink is the most popular and used by many people, it is more like the standard of kitchen sink. For people who wish to have a more stylish look on their kitchen they will probably choose the undermount sink. Both of them works differently, and here is how the drop in sink may differ from undermount sink.

Drop in Sink

Drop in sink is a sink which has a rim or lip that rest on the countertop. This makes the sink easy to install, which is why this sink is the most popular type of sink available. This type of sink is also called Top Mount or self-rimming sinks. It distinctive features is these sinks drop into a hole cut out of the countertop, with the sink rim or lip placed in the top of the countertop. The faucet mounts is directly on a sink ledge along the back edge of the sink. The benefit of this type is that fit with all types of countertops but not with laminate. It also cheap, easy to install, and available in most materials, the most common material is stainless steel but also available in fireclay, composite, solid surface, acrylic and cast iron. The downside of this kitchen sinks is the dirt and food grimes may gets caught between the rim and the countertop.


Undermount sink gets its name by the way the sink is installed in relation to the kitchen countertop. Rather than being dropped into a pre-cut hole in the countertop, undermount sinks are installed under the counter. This is why there is no rim between the countertop and sink. There are a lot of materials used to make undermount sinks, such as, stainless steel, cast iron, solid surface, and copper. This sink also available both in single bowl and double bowl undermount sinks. The advantage of using this sink is there is no lip to catch dirt. We can brush the crumbs or swipe the spills directly into the sink without anything getting trapped under the sink rim. This type of kitchen sinks also enhance the style of our kitchen. The disadvantage of undermount kitchen sinks is, it is particularly harder to install than drop in sinks and commonly more expensive. Undermount kitchen sinks also best when combined with a waterproof countertop, because the countertop will be exposed to water. Undermount sinks are good to pair with solid surface and granite countertops, but are not compatible to pair with laminate. Undermount sinks are sometimes installed with laminate countertops even though water damage is a potential concern. If you are considering this option make sure to find an experienced fabricator/installer.

Here is some comparisons between the Drop in Sink and Undermount.

1. When it comes to giving more countertop space, the undermount is the winner, because undermount sinks extends all the way to the sink and a bit more. If you don’t have a wide room, then it is best to use undermount. The drop in sink have a drainboard sink which may extends from 8” to 10” so it will make your kitchen looks narrower.

2. The easiest one to clean is drop in sink, on the drop in sinks, all working area are visible and accessible, but it should be noted that the small, visible seam formed by the lip and the countertop can also build a gunk as well. While in the undermount sinks have an issue with the gap at the top of the sink, where it joins up with the counter, might be become a magnet for food build up. It is recommend to dig out the caulk on undermount sinks at least once in every 3 years.

3. The easiest one to clean the countertop will be undermount sinks, drop in sinks rims are too high to allow us to swipe food in the counter to the sink, not like when using undermount sinks when this can be performed easily.

4. From the price aspect, drop in is less pricey than undermount. For example a drop in Kohler Brookfield Drop in Cast Iron 33 in. 4 hole double basin sink is sold at $249 in Home Depot. While Undermount counterpart cost for about $418. The cost to install undermount is also about $50 pricier than drop in sink.

5. When it’s about the material, drop in is the winner. Typically drop in sinks can be install in any countertop materials except for laminate. Because laminate is too weak to hold fasteners which have no backer for example bolt, nut and washer.

6. If you are considering to resale the home, the undermount might be giving a slightly better value, since it will give a higher value to the potential buyers.

Drop in SinkUndermount
- The price is cheaper- The price is higher
- Will take up some counter space- Will give more countertop space
- Have a lip and will forms an obstruction in the countertop- Have no lip to form an obstruction in the countertop


Whether you are choosing drop in sink or undermount sink, it is all up to your preference and taste, all the things you need to consider is written above, make sure to think things thoroughly to avoid any unwanted final results.

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