On average, circular or oval sinks range between 16” to 20” wide, while rectangular sinks can be found between 19” and 24” wide and 16” to 23” front to back. In terms of depth, a vanity sink usually ranges between 4” and 8”, though larger sinks may be 10” deep.
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. This size range will cover most of the options you'll find when shopping.
Use a deeper sink than 16 inches. This deeper sink will less likely cause splashing and will be more suitable for bathrooms.
BATHROOM SINK SIZES
Round sinks are generally 16 to 20 inches in diameter. Rectangular sinks are generally 19 to 24 inches wide, 16 to 23 inches deep, and actual sink depth, from top of the basin to drain, is usually 5 to 8 inches. Sink height is usually 29 to 36 inches, for pedestal and console-style sinks.
Common Bathroom Sink Sizes
Small: From 15 to 20 inches long and nine to 12 inches wide, with a depth between 5-3/4-in. and seven inches. Medium: From 20 to 30 inches long, 19 to 24 inches wide and about seven inches deep. Large: From 30 to 50 inches long, 19 to 24 inches wide and about five inches deep.
The standard depth is around 8 to 10 inches. Anything shallower than 8 inches will make it difficult for you to have enough space to wash dishes. The extra depth can make it easier to wash oversize pots, which is helpful for anyone cooking for a big family or entertaining guests.
Due to their simplicity, oval sinks complement countertops of any design and color. Their classic design also makes them easy to pair with almost any bathroom style. They are space-savers, as many of them are designed to fit into small spaces. They have no place for dirt to get trapped, thus are easy to clean.
Shallow sinks require a faucet flow that won't cause over-splash, which usually means a lower-set spout. High, gooseneck faucets look elegant, however, the falling water can create a lot of splash-back that might leave a mess on your countertop when paired with a shallow sink.
Choose a heavy stone, cast iron or enameled-steel undermount sink only if you're sure the countertop can support the weight. Color: Undermount sinks come in gloss white, matte black and everything in between. Choose one that matches your countertop or, if you prefer drama, choose one with a contrasting color.
Just subtract half an inch from the width of the base cabinet to get the maximum desired sink width. For instance, if your cabinet is 26.5”, you should buy no more than a 26” wide undermount sink.
They Give You More Counter Space
Instead of giving up a little extra space for an edge, you only lose the space the sink takes up. And, thanks to this extra space, a sleek look, and rising popularity, an undermount sink can also increase the resale value of your home.
As a general rule of thumb, you will want at least a 1/2" of clearance on both sides between the lip of the sink and the inside walls of the cabinet (1/4" is tight, but doable!).
If a bathroom sink is too shallow, splashing is more frequent and you won't be able to fill the sink for any reason. Another reason for these heights is the accessibility. Five to eight inches seems to be the most accessible depth for everybody.
The average 24″ sink base cabinet comfortably accommodates a standard 22″ sink; be sure to consider the depth of your sink when planning storage inside the base cabinet.
In general, which sink type is best for you will come down to preference. Drop-in sinks represent a sink type that is affordable, flexible, and easy to install. But drop-in sinks do not have much in the way of resale value and are aesthetically outdated.
Undermount sinks are simply more practical, functional and aesthetically pleasing than overmount sinks. With undermount sinks, it is really easy to wipe food crumbs from the countertops into the kitchen sink. There is no edge, no seam and no calking in the way.
Color: White, beige and copper are among the most popular sink colors, but sinks can come in countless different hues and finishes. Metallic, nickel, blue, green, gray and glass are great options for mixing up the decor in your bathroom.
In larger bathrooms, double sinks tend to look nicer. In a large space, a smaller single sink might feel dwarfed by the other fixtures, such as the tub or shower. Double sinks can help give a larger bathroom a balanced feel.
In general, the standard sink size is 22” x 30”. While single bowl sinks can have a width upto 36 inches, double bowl sinks can go upto 48 inches.
The most common sizes for a kitchen sink are 30" or 33", however a standard size could measure anywhere between 24" and 36" in length. Generally, sinks up to 30" will contain one large single bowl.
Buttrick recommends a sink that is at least 27 inches long, 19 inches wide, and 7.25 inches deep. “Once you factor in the three-quarter-inch counter depth, the sink is eight inches deep,” he says.