The reason for this is to allow for adequate room to work when installing the sink, as well as to avoid potential water damage or mold growth in the cabinetry. The minimum cabinet size needed for your sink will be found on the product page from our website once you search the model like the example shown below.
Kitchen Cabinet Kings
General rule of thumb is actual sink should be 3" in actual width less than the sink base for smooth fit. However if you notch the sides of the cabinet, you should be able to get something as tight as 1.5 less than cabinet to fit.
Base cabinet size
To determine the maximum sink size for your base cabinet, measure the interior of your cabinet and subtract two to three inches from each dimension. A 36″ base cabinet can handle a 33″ sink at most; a 30″ cabinet should be fitted with a sink no larger than 27″ wide.
The recommended size for a 36" base cabinet is a 33" farmhouse sink or smaller. It is recommended that your base cabinet be 3 inches larger than the size of the farmhouse sink you are considering to install.
A typical 33 x 22-inch sink will fill a 36-inch base cabinet. If you're replacing a sink, make sure it fits the existing cutout. If the cabinet allows, you may be able to install a larger sink by expanding the cutout. A farmhouse sink may require a special cabinet size.
Another larger option, that provides more variety in its use is a 29" double bowl sink. This sink will fit in your 30" kitchen sink base cabinet and provide you with two 16x13"basins.
A 36" sink will fit into a 36" cabinet easily if you strap it in place. Manufacturer's allow for chubby plumber fingers to access clips to tighten. If you eliminate the clips, you eliminate the need for access.
The length of the sink you order needs to be less than the width of the interior of the cabinet, with a little room to spare. For example, 36'' wide cabinets are often outfitted with 33'' sinks.
A 33" cabinet is outside measurement. Figure 3/4" wall thickness, so the inside measurement of the cabinet is 31½". You can possible squeeze the sink in there. It will be difficult to get at the side clips.
When selecting, or designing, a base cabinet for your new farmhouse sink, it is important that the size of the base cabinet is correct. Your base cabinet should measure 3" longer in length than the sink you are installing. For example, if you have a base cabinet that measures 36" wide it will support a 33" sink.
The standard size for a kitchen sink can vary, but a typical size for a single-bowl sink is around 30 to 33 inches in width and 20 to 22 inches in depth. Double-bowl sinks can range from 30 to 48 inches in width, depending on the bowl size and configuration.
The most common sink sizes for a 30-inch cabinet are 24 to 27 inches wide. These sizes offer a comfortable fit within the cabinet and provide enough room for daily use.
No matter what you do, you will most likely need a special or custom cabinet to accommodate your new farmhouse or apron sink. This is because there are many styles of sink designs and how they need to be installed, typically requires a non-standard cabinet. The two most common types are Drop-in or Undermount.
Measure the opening width under your existing sink (or where the new one will be installed) from left to right. This measurement is your cabinet size. Then, allow at least 2-3 inches on both sides for mounting hardware. For example, a 36" cabinet can accomodate a 30-32" sink.
Standard Kitchen Sink Sizes to Know
On average, customers who purchase single-bowl sinks prefer 30-inch-long dimensions at most. Experts recommend at least 22 to 27-inches in length, which also works for small kitchens.
Sink Landing Counter Space
The landing space requirement at a main sink is 24″ on one side and 18″ on the other side. The countertop landing area beside the main sink helps with Clean-up duties. With the dishwasher typically places on one side of the main sink the 24″ landing counter is taken care of.
Standard-sized kitchen sinks measure 22 inches by 30 inches.
While the front-to-back measurement of the sink typically remains the same (roughly 22 inches) due to the size of most cabinets, the length of various kitchen sinks can vary immensely.
33-inch sinks are one of the most popular sizes of kitchen sinks for homeowners wanting a sink large enough for bigger pots and pans with ample space for food preparation and cleaning.
A 33" cabinet will only fit a 30" sink.
Corner Sink Base Cabinet Options
It is easiest to find corner kitchen sinks to fit into stock or semi-custom corner sink cabinet base options. For many of our projects we used have used 36” corner sink base cabinets and were able to have the 24” wide undermount sinks fit in perfectly.
For single-sink cabinets, the average bathroom vanity width range is between 30 and 48 inches. For double vanities, a width range of 60 to 72 inches is standard. Keep in mind that the vanity top should be about 1 inch wider and deeper than the cabinet itself.
But what actually makes a sink considered “farmhouse” style? The TLDR definition of a farmhouse sink is “a deep sink that has an exposed front-facing side.” Thesaurus may also refer to it as an “apron front” sink – which, in our opinion, is the best description as it literally acts like an apron as you wash.
The standard vanity size for single vanities is between 36 and 48 inches wide, making them a fantastic option for guest bathrooms and powder rooms. When you have an especially small bathroom design, there are even wall-mounted vanities designed to free up valuable floor space.
To make space for the extra-large sink, you'll need an 'apron-skirt' cabinet design. A farmhouse sink can't fit into the usual drop-in sink space and extends over the top quarter of the lower cabinet. This requires a full re-design of the cabinet and countertop where your farmhouse sink is installed.