Bathroom Vanity Sizes (Dimensions Guide)

Welcome to our bathroom vanity sizes guide, including different types of cabinet dimensions and how to choose the right size for your room design.

An essential room in every home, the bathroom is critical to everyone’s daily routine.  That said, it is only practical for your hygiene and beauty must-haves to be within reach by having a vanity. 

A vanity comprises a sink and a storage unit to help you organize.  Formerly a Victorian-era fixture, vanities have evolved into the modern-day age with many options.  But achieving the right look also requires picking the vanity size that best fits your bathroom layout.

A must-have in residential bathrooms, vanities come in different sizes and shapes.  Here are some common types and their dimensions.

Standard Bathroom Vanity Dimensions

There isn’t a single standard dimension for bathroom vanities. Changes in residential designs and room layouts over the years culminated in a range of standard measurements for vanity sinks. 

These measurements follow the National Kitchen and Bathroom Association (NKBA) codes. But always check with your local building codes, as they may vary per city or state. 

Standard Vanity Height

The recommended vanity height by the NKBA is from 32 to 34 inches. Traditional homes had less floor space, and as a result, kids and adults had to share the bathroom. This led to the majority following a standard cabinet height of 32 inches. 

But as time passed, modern homes grew, allowing multiple bathrooms. Children’s countertops are customized to their height, or parents let them use step stools instead. 

Many homeowners now prefer comfortable height vanities at 36 inches to avoid bending low when using the sink.

If you prefer a vessel sink cabinet, measure the floor to the top of the sink to determine the total height. Not sure which sink to get? Refer to our bathroom sink type guide. 

Average Vanity Width and Depth

The standard width of a bathroom vanity is anywhere between 24 and 72 inches, based on your sink type or your preferred countertop space. 

Typical homes use a 30 inches, 36 inches, or 48 inches. The latter size can be a spacious single-sink cabinet or a narrow double-sink combo.

The standard depth for vanities is 21 inches. Calculate depth by excluding the countertop overhang, if any. Measure only from the wall to the edge of the door or cabinet panels.

Vanity Depth

The clearance space in your bathroom is crucial when considering your vanity’s depth. On average, vanities are between 20 and 23 inches deep and are enough to hide the plumbing and provide extra storage.

In comparison, smaller rooms demand narrower vanities.  Shallow-depth vanities can be from eight inches to 18 inches, which works well if you have limited clearance space.  But some homeowners also choose shallow vanities and match them with oversized vessel sinks for style.

Single Sink Vanity Measurements

Single sink bathroom vanities can measure between 24 inches and 48 inches in width.  Whether you have a small or average sized space, you can easily fit a 24-inch vanity.  But if your space allows, it is best to upgrade to a midsize (36in or 48in) single sink cabinet for a larger countertop and storage capacity.

Proportion is vital to your bathroom’s layout.  If you have a large layout, you can get two side-by-side single sink or double sink cabinets instead.   

Double Sink Vanity Sizing

Double sink vanities in master bathrooms range from 60 to 72 inches wide, perfect for couples.  But if your space is cramped, you can opt for a 48-inch double sink vanity.  

With double sink vanities, you get enough elbow space and separate cabinets for your things.  You can also avoid long waits before taking your turn in the morning.

Remember that two sinks also mean having two pipes occupying your cabinet and less counter space.  Consider adding an overhead cabinet or wall shelves if necessary.

Corner Bathroom Vanity Dimensions

Make every inch in your small bathroom count when you install corner vanities. 

This compact corner vanity can measure between 16 and 36 inches wide and 18 to 24 inches deep. A product with a curved front edge and two straight measurements in the back to fit perfectly into the corner is typically 24″ by 24″.

Unlike other vanities, a corner cabinet is for bare essentials only, with the pipe occupying most of the storage space.

This type works well for half baths and outdoor toilets.  Although compact, you can get creative and customize it with a pop of colors and textures. 

Consider purchasing a wall-mounted corner cabinet to avoid having a hollow space behind.

Child-Size Vanity

There are low-standing vanities for kids that are not practical for home use in the long run.  With step stools and pull-out steps, you can install a 30 inches high unit in your child’s bathroom instead. 

You can also use adjustable legs or raised platforms as your kid grows.  For depth, opt for an 18 or 20 inches deep  cabinet for easy faucet access.

How To Choose The Right Size Vanity?  

Check your floor plan. Refer to your layout and check for space.  Your bathroom cabinets should not block your door openings, trims, electrical wires, and other features.  Ensure you have at least 30 inches of clearance space for your cabinets, doors , or drawers. Finally, it is crucial to locate your sink near a plumbing system. 

Read more about bathroom dimensions to see how you can maximize your space.  

Factor in your needs. A single sink cabinet may suffice if you live alone, but couples or shared bathrooms may benefit more from a double sink products.  If space and storage are your priority, pick wider vanities. 

A corner cabinet can also be a great space saver, especially in small powder rooms.  Remember that your furniture must always be proportionate to your room size. 

Determine the best height for you. Getting a vanity at a comfortable height may improve your overall experience.  But consider others as well, especially in shared spaces. When in doubt, follow the standard dimension instead. 

Ready to take the next step? Try our suggested bathroom remodel tools and refine your design layout before implementing them. Check out our bathroom remodel ideas as well.