Tue Jun 18 2024

How to Select the Standard Bathroom Vanity Size for a Perfect Fit

red oak double bathroom vanity sink with storage

Selecting a standard-size bathroom vanity can be a difficult task. With a myriad of bathroom vanity sizes and styles available, it can overwhelm you quickly.

Whether you are renovating your bathroom or designing a new one, understanding how to select the ideal bathroom vanity size ensures a perfect fit for your needs and preferences. Simplify the process of selecting bathroom vanities with this complete guide.

To help you make an informed decision, we have compiled a table of some of the best options for bathroom vanities:


Best Overall

60" Taima Double Teak Vanity for Rectangular Undermount Sinks

Best for Small Spaces

24" Unpainted Shaker Poplar Wood Vanity for Vessel Sink - 34" Height

Best Value

30" Thanesta Teak Wall-Mount Double Vessel Sink Vanity with Shelf - Natural Teak


- features solid teak wood construction and plywood

- includes soft-close doors and carefully chosen hardware

- marble tops include natural variations in color

- manufactured from poplar wood and built in the USA

- anti-skid pads underneath, ample storage space and well-constructed doors

- customizable

- perfect size and highly functional as a bathroom centerpiece

- built-in shelf to store towels and other toiletries

- hardware included for installation

By considering these top choices, you can find the perfect bathroom vanity to complement your space and meet your functional needs. Now, let's dive into the steps for selecting the standard bathroom vanity size for a perfect fit.

Step 1 - Understand Standard Bathroom Vanity Sizes

It’s important to familiarize yourself first with the standard bathroom vanity dimensions available. This knowledge helps you find the right vanity for your bathroom’s size and layout.

Standard bathroom vanities range from 24” to 72” in width, accommodating various space requirements and design preferences. Most bathroom vanities, including the ones you see on the Magnus Home Products website, come within this range.

Here is a breakdown of common vanity widths and their ideal applications:

Vanity Width

Best For


24” to 30”

Small bathrooms or powder rooms

Provides essential storage without overwhelming the room

36” to 48”

Medium-sized bathrooms

Balances storage and countertop space


Larger bathrooms or shared spaces

Accommodates double sinks and offers more cabinets and drawers


Master bathrooms or spacious layouts

Creates a luxurious and spa-like experience

Aside from the width, you should also consider the depth and height of the bathroom vanity. The average depth of a bathroom vanity is about 20” to 21”, with shallower options such as 18” for narrower bathrooms. With these shallower options, you can ensure your vanity doesn’t protrude too far into your bathroom and obstruct movement.

The average height of a bathroom vanity is about 32”, but 36” options are available for a more comfortable fit for taller users. These taller vanities can reduce strain on the back, making them a popular choice for many homeowners.

Pro Tip: If you have very specific bathroom and user requirements, consider custom vanities. They can be any size you want to fulfill all your needs.

Step 2 - Measure Your Bathroom Space

Accurate measurements of your bathroom are crucial for selecting the right vanity size. This step ensures that your new vanity fits perfectly within your available bathroom space. The key bathroom dimensions to consider are width, depth, and height.

Here is how to measure your available bathroom space effectively:

  • Measure the distance from one wall to the other. This helps determine the maximum width of the bathroom vanity you can accommodate. Leave a few inches of clearance on each side, so your vanity won’t look cramped.
  • Measure the distance from the back wall to the point where the front edge of the vanity will be. This helps determine the maximum depth you can accommodate. Ensure the depth allows doors, cabinets, and drawers to open fully without obstructions.
  • Measure the distance from the floor to the desired height for the top of the vanity. Ensure there is enough vertical space for additional features, such as backsplashes, mirrors, and wall-mounted fixtures.

For a more seamless installation and harmonious bathroom design, here are key tips for measuring your bathroom space:

  • Look at your electrical and plumbing systems. Identify the location of your electrical outlets, light switches, and plumbing fixtures such as toilets. Make sure they won’t be obstructed by your bathroom vanity.
  • Prioritize user movement. This is particularly important if you have a small bathroom. Make sure there is enough space to move around before you install a new bathroom vanity.
  • Future-proof your layout. Leave a little extra space around your vanity to accommodate future additions or changes in your bathroom. To visualize your layout more effectively, consider sketching your bathroom with all its fixtures and measurements.

This meticulous measuring approach not only enhances the usability of your vanity but also contributes to an aesthetically pleasing bathroom design.

Step 3 - Know Your Sink Size

black vanity in a white-tiled bathroom with a modern design

Your sink size is a significant factor when determining the appropriate size for your bathroom vanity. Your sink should fit comfortably within the vanity, leaving enough counter space for toiletries and other items. If you are planning to have two sinks in your setup, ensure there is enough space between the sinks for a practical and convenient design.

Here is a breakdown of common sink sizes and how they fit bathroom vanities:

Sink Size

Vanity Size

Double Sink Accommodation

16” to 18”

24” to 30” width


20” to 24”

36 to 48” width


24” to 30”

48 to 60” width


30 to 36”

60” to 72” width


Take note that these are just general guidelines. The exact measurements can vary based on other factors, such as your sink shape and installation type.

Round sinks may require a wider vanity compared to rectangular sinks of the same size. Topmount and undermount sinks may require a larger vanity compared to vessel sinks because of their installation process and placement in the vanity.

A well-matched sink and vanity combination can provide both practical benefits and aesthetical appeal. These guidelines are a helpful starting point, but remember to account for the unique details of your sink and bathroom.

📍 Now that you have seen common sink sizes and their corresponding vanity sizes, take a look at our Red Oak Double Vanity for Undermount Sinks, one of our best-selling bathroom vanities. See if it matches your requirements and enhances your bathroom design.

Step 4 - Look at the Vanity Top

The vanity top serves as the platform for the sink and provides space for cosmetics and other bathroom essentials. Many retailers offer bathroom vanity sets that include cabinets, drawers, and vanity tops. But some vanities don’t come with a top, allowing customers to choose one that fits their preferences.

There are certain vanity top factors you need to consider when selecting a bathroom vanity, such as the vanity top’s size, shape, and material.

Here are some actionable tips for dealing with these factors effectively:

  • Measure the width and depth of your vanity top. This helps determine the bathroom vanity size you need. Make sure your bathroom vanity dimensions match your vanity top. They can also be slightly smaller if you want a portion of the top to extend beyond the edge of your vanity.
  • Stick with regular shapes. Rectangular vanity tops are great because they can easily fit standard bathroom vanity sizes. Custom-shaped vanity tops require more precise measurements to accommodate their contours.
  • Make sure you have the proper weight support. Vanity tops made from granite, marble, quartz, and other heavy materials require stronger vanity bases. Ensure your chosen vanity size can handle the weight of your top.

By carefully considering your vanity top’s size, shape, and material, you can select a bathroom vanity size that can perfectly accommodate it.

Step 5 - Determine Your Storage Requirements

double sink vanity with plenty of storage

By thoroughly understanding your storage requirements, you can select a bathroom vanity size that not only fits your bathroom’s dimensions but also enhances its usability. A well-chosen vanity size with adequate storage can transform your bathroom into an efficient and organized space.

Here are some actionable tips for assessing your storage requirements effectively:

  • Make a list of everything you need to store in the vanity. Personal items such as grooming products, medications, and toiletries should be at the top of your list. But don’t forget the linens and towels. Determine if you need storage for cleaning supplies as well.
  • Know the right storage configuration for you. If you are storing a lot of small items, consider vanities with multiple drawers. If you are storing a lot of large items, consider vanities with cabinets and shelves. There are also bathroom vanities big enough to feature a combination of these storage compartments.
  • Consider the number of users. If the vanity will be used by one person, a smaller one with fewer storage options may be sufficient. But if it will have multiple users, a bigger one with more storage is essential.

By knowing your storage requirements, you can select a vanity size that provides the right amount of storage for your bathroom and its users. Keep your bathroom clutter-free and organized with a properly-sized vanity.

Bathroom Storage Tip: Install additional storage solutions such as cabinets, shelves, and trays. Try those with wall-mounted designs to save space.

Step 6 - Consider Seeking Professional Advice

There are many factors to consider when choosing the right bathroom vanity size, such as your available bathroom space, sink and vanity top design preferences, and storage requirements. It’s incredibly beneficial to seek professional advice to make the vanity selection process easier.

Here are the types of professionals you can consult:

  • Contractors: They have the practical experience needed to ensure your bathroom vanity is installed correctly and efficiently. They can provide valuable insights on the feasibility of installing certain vanity sizes in your bathroom.
  • Designers: They have structural and aesthetical insights on your bathroom vanity. Go with architects to help with complex layouts and renovations. Go with interior designers to create aesthetically pleasing bathrooms.
  • Home Improvement Store Specialists: They have incredible knowledge about the range of products available in their stores. They can also provide information on the latest trends and popular sizes. Magnus Home Products is a good example of this.

Professionals help you make the best choices and avoid costly mistakes. Clearly communicate your requirements and preferences. While it’s important to share your vision, be open to their suggestions. They may even provide alternative solutions you might not have considered.


By carefully considering each of these steps, you can be well-equipped to select a bathroom vanity size that not only fits your space but also meets your everyday needs.

If you are looking for a new vanity, Magnus Home Products has an extensive bathroom vanity collection for you. The collection is carefully curated to fit a wide range of preferences and requirements. With our vanities, you can have a functional fixture that can also serve as a bathroom centerpiece.