Bathroom Sink Dimensions: How to Measure for Your Stylish Sink Upgrade

One size never fits all. Will the sink you’ve got your eye on fit your space?

By Kate De Palma

 

Having just written a guide for buying bathroom faucets, I’d be remiss to not write about how to choose a sink, particularly in regards to bathroom sink measurements. While there are plenty of different sink types out there, it’s not enough to know just about different sink styles. That would be too easy. You also need to know a little something about sink size, including how to properly measure a bathroom sink and what size bathroom sink you need based on countertop space and sink style.

 

This article will walk you through what you need to know when measuring for a sink (because of course there isn’t just one standard bathroom sink measurement) and what your best sink options are given your space restrictions. So, let’s jump into this quick bathroom sink size guide so you can get back to your remodeling project.

 

How to Measure for a Bathroom Sink

Whether you’re looking to just replace the sink and keep your current vanity or are looking for a new vanity/sink combo, the simplest approach is to start by measuring. This guide will kick off by measuring for a new drop-in sink, which is a common sink style to install in either a new vanity or your old one. Other sink types will be addressed later in this article.

 

Measure for Sink Width

Width is the side-to-side measurement of the sink. For a drop-in sink, simply measure the hole you’ve got or the space in the counter you’d like the sink to take up. Even if you’re getting a new vanity, the size of the drop-in sink you can get all depends on the size of the counter. Round drop-in sinks are typically 16-20 inches across, so if you have a small vanity (24 inches is a typical small size), you’ll probably want to center your sink.

 

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Photo by Kate De Palma

 

If the bathroom vanity is 24 inches or wider (mid-size vanities tend to range from 36-42 inches wide) you definitely have some space to play around with in terms of placing the sink on or off center. A wider countertop also brings other sink types into play, like oval-shaped sinks (which tend to be wider than the standard bathroom sink size of 16-20 inches) and rectangular sinks (often coming in around 20-24 inches wide).

 

If you’ve always dreamed of his and hers sinks, keep in mind that the minimum size for a double sink is typically considered to be 60 inches, or 5 feet, of counter. A good rule of thumb when it comes to bathroom double sink dimensions is to allow for 30 inches of space between the centers of the two sinks, along with a foot on either side for some elbow room. If you’ve got the space, 72 inches (or anything in between) is even nicer.

 

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Photo by Kate De Palma

 

Measure Counter Depth

When choosing your new sink, you’ll also be constrained by how deep your counter is in terms of distance from its front edge to the wall. The standard bathroom vanity depth is 22 inches, meaning your 16-20-inch round sink will fit in nicely. Give it the typical 2 inches in front, and you’re good to go.

 

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Photo by Kate De Palma

 

Measuring for Other Sink Styles

If you’re looking for something other than a drop-in sink, you may need to measure a little bit differently. Here’s a quick guide to measuring for other common sink types:

 

Undermount Sinks

These sinks are installed in the bottom of the countertop so that they have no lip sticking up over the edge. To create this for you, the manufacturer generally will just need the width and depth measurements of your counter and of the sink you want mounted into it. Pretty straightforward.

 

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Photo by Kate De Palma

 

Integrated Sinks

This type of sink comes as a piece of countertop with the sink sunken into it. It’ll fit over whatever vanity is already there, so go ahead and measure counter width and depth, adding about 1 inch for the front overhang (side overhangs optional).

 

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Photo by Kate De Palma

 

Free-standing Sinks

Wall-mount and pedestal sinks are often used when you don’t have a lot of space, so the measurements for these are all about how much space you have to work with. They of course come in all shapes and sizes, but 22-24 inches is a pretty typical width for pedestal sinks.

 

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Photo by Kate De Palma

 

Vessel Sinks

These bad boys sit on top of the counter, so no fancy measurements here. If it fits, it fits.

 

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Photo by shutterstock

 

Think you’ve got a handle on sinks? Be sure to also check out House Tipster’s guides on choosing the right vanity and the best bathroom mirrors to get yourself two steps closer to your dream bathroom!

Next: The Best Bathroom Flooring Options: Pros & Cons