The width of the sink refers to the measurement from the back of the sink, where the faucet is, to the front, and this is the direction you should take when you are measuring it. The length is measured from the left side of the sink to the right.
Measure the sink width by placing your tape measure at the back edge of the sink (closest to the kitchen faucet) and stretching it across the sink basin to the front edge. Write down the width. Lastly, measure the basin depth. Place your straightedge ruler or your level across the top of your sink.
Start with the width. Measure the distance from one side of the basin to the other. Next, measure the length. This is the distance from the rear of the basin to the front.
The standard sink size is about 22 inches long to 30 inches wide, but once again it's crucial to take proper measurements.
For length and width, measure from one outer sink lip to the opposite side (for most sinks), or from the edge of the counter to the other edge lengthwise (for undermount). For round and oval sinks, measure the diameter, or the length across the widest point of the sink.
Use inside measurements to find a sink with similar measurements. Ensure you place your measuring tape at the top of the sink and measure the length (side to side), width (front to back), and depth (from the middle of the basin to the top of the sink).
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.
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.
A 30-inch wide or a 36-inch wide cabinet are most common. The height of the cabinet can be customized, but 36 inches is average. 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 you're replacing an existing sink with the same installation type, simply measure the length, width, and depth of your current sink and choose a replacement with the same measurements. That's it, you're done!
The size of the kitchen sink will vary with different styles, in general: Single bowl: These sinks are typically 20-24 inches wide and 18-22 inches front to back. They are designed to fit in a standard kitchen cabinet base. Double bowl: These sinks are typically 33-36 inches wide and 22-24 inches front to back.
Most round bathroom sink bowls are 16 to 20 inches in diameter, while most rectangular sinks are 19 to 24 inches wide and 16 to 23 inches front to back.
One of the most important criteria for choosing kitchen sink size involves finding a sink that comfortably fits the kitchen's base cabinets. Average cabinets measure 24 inches deep, 36 to 42 inches high and 25-1/4 to 26 inches wide. The standard 22-by-33 inch sink fits well within these dimensions.
Double bowl sinks typically have a width of 22 inches but can be as wide as 48 inches. One basin might be several inches wider than the other, or they could be equal in size. Our virtual experts can diagnose your issue and resolve simple problems.
A 33" cabinet will only fit a 30" sink.
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.
For a 42" corner sink base cabinet, you'll want to shop like you have a standard 30" cabinet. In other words, find a sink that has an overall dimension of no more than 29", giving you a bowl size of 27". Often, not always, the sink will be set back 3" from the front frame of the cabinet.
Rough-In Dimensions for Bathroom Sinks
The standard rough-in height for residential bathroom sinks is 31 inches from the floor to the rim of the sink. Bathroom sinks in compliance with ADA requirements measure 34 inches from the floor to the rim.
Kitchen sinks have been steadily growing in bowl depth. Most sinks used to be as shallow as 6 inches or less. The average today is 8 to 10 inches, and they can go as deep as 12 inches.
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 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.
Single-bowl sinks are generally larger than double-bowl sinks, which can make them more convenient for tasks such as washing large pots and pans. They also offer more uninterrupted space for items such as a drying rack or cutting board. Single-bowl sinks are often less expensive than double-bowl sinks.