What Vanity Size is Necessary for Two Sinks?

bathroom renovations sink installation

Sharing a bathroom can often feel like an obstacle, especially during rush hours when everyone is in a hurry. But with two sinks, it suddenly becomes more convenient because no one has to wait in line for their turn. However, many homeowners fear that installing double sinks during a bathroom remodel may come with design challenges similar to those like installing a shower glass door in limited bathroom spaces. That’s the reason we have put together this guide to help you pick the perfect size double vanity for your bathroom needs .

How to Measure Your Bathroom Space for a Vanity

To make sure that you’re choosing the right size vanity for your bathroom space, you need accurate room measurements as we guide you below:

Step 1: Measure the Width:

Vanities are often placed against the walls so begin by identifying the wall you want to position it and then measure its width. As you measure the wall, account for the plumbing fixtures by measuring between plumbing access points to determine the exact spots to place your sinks. Do this by allowing for enough clearance of about 8 to 10 inches on either side of your sinks to provide enough room for use. For example, a space of 32 inches between pipes with 8 inches of clearance on each side requires a 48-inch vanity.

Step 2: Measure the Depth:

The next step is to measure the depth of your vanity. Typically, vanity depths range from 12 to 24 inches, with 21 inches being the most common measurement. You want to make sure the depth does not extend too far into the room, blocking doors and walkways and making it hard to use the bathroom space.

Step 3: Measure the Height:

The standard height of vanities in family bathrooms ranges from 30 inches to 36 inches. You choose the ideal height according to how tall or short the users are. Of course, you must check for clearance around outlets, mirrors, and light fixtures. Don’t forget to account for depth measurements of overhangs like countertops and backsplash to be sure you manage your space effectively.

Standard Double Sink Vanity Sizes

Vanities like any other furniture pieces come in different sizes and designs. Some of the popular vanity sizes include:

  • 48 inches: This is the standard size that fits well in smaller bathrooms or guest spaces. It comes with two sinks but with limited counter space and storage. It’s what you go for to maximize every inch of your bathroom.
  • 60 inches: For medium-sized or large bathrooms, 60-inch vanities offer a good balance of sink space and storage capacity. This is often sufficient for most American households with two to three persons.
  • 72 inches: For a master bedroom where space is not an issue and luxury is desirable, a 72-inch vanity provides ample counter space for decoration and enough storage options to keep all your accessories.
  • 84 inches and above: This larger-size vanity is a popular option for large-sized bathrooms. They are often custom-built and feature unique layouts.

Size Recommendations Based on Plumbing:

To simplify your vanity installation, it’s generally recommended that you use the existing plumbing layout to choose the appropriate vanity size for your bathroom. This helps you avoid further plumbing modifications, which can add to the installation costs. 

Choosing a Vanity for Your Bathroom Type

When it comes to choosing a vanity for your home, it comes down to the size of your bathroom and the features you would like to use. Here’s how to choose a vanity for your bathroom type:

Master Bathrooms

If you have a spacious master bathroom, consider a large symmetrical vanity design, a concept where one side of the vanity mirrors the other. This can be a vanity that measures between 72 to 84 inches to accommodate two sinks, each with a matching mirror, lighting, and storage compartments. To help you manage bathroom clutter, make sure to include soft-close cabinets and drawers for storage.

Small Bathrooms

Because of space issues, using wall-mounted or floating vanities in small bathrooms is the best option. These types of vanity don’t touch the ground, providing you ample floor space to clean and move around. The 48-inch option vanity is compact and practical enough for most small bathrooms.

Guest Bathrooms

For guest bathrooms, you don’t need too much storage space so 48-inch vanities will be more practical. You can choose materials with laminate surfaces like medium-density fiberboard (MDF) to provide a stylish appearance. These materials are also easy to maintain and last longer compared to engineered wood.

Large Bathrooms

For master bedrooms, ample storage is the most important feature for two or more users, requiring bigger vanities measuring between 60 to 72 inches. These vanities should have separate compartments so everyone has enough space to keep their personal belongings.

Benefits of a Double Sink Vanity

Double-sink vanities come with several benefits as we highlight below:

Enhanced Convenience

With a double sink vanity in your bathroom, you avoid the frustration of waiting for your turn to use the sink during high-usage hours. You and those you share the bathroom with can brush, shave, or apply makeup simultaneously without bumping into each other.

Increased Storage

A vanity that can host two sinks means you have extra counter space and storage compartments to store your grooming products, toiletries, and other essentials. Having dedicated compartments for each user also helps reduce clutter, making your bathroom organized and easy to clean.

Luxurious Appeal

Installing a large vanity with two sinks creates an impression of luxury for a bathroom. If you plan to sell your home, this feature becomes a selling point and can potentially increase your asking price.

Addressing Common Concerns

Here are some of the concerns that come with installing double-sink vanities..

Space Limitations

Double  One of the most common concerns about investing in a double-sink vanity is the space limitations, However, compact 48-inch vanities are the perfect solution for homeowners with small bathrooms. Besides, there are floating designs that create an illusion of more space by minimizing visual bulk.

Cost

Double vanities are an investment that provides long-term value for the owner. On average you spend between $500 to $6000 depending on the materials used, the size, and the design of the vanity. If you are tight on a budget, go for the affordable prefabricated vanities with durable finishes.

Plumbing Adjustments

Many double vanities are designed to align with standard plumbing setups and won’t need major plumbing readjustments. If you have a floor-to-ceiling tiling  installation in your bathroom, holes for the plumbing should already be cut out. If for some reason, your vanity is misaligned with fixtures or you need custom installation, make sure you consult a professional for the best results.

Need a Bathroom Vanity Remodel?

Adding a double sink vanity to your bathroom is a practical thing that makes it enjoyable for everyone using the room. Even the smallest bathrooms can accommodate this feature because it comes in different sizes. By carefully planning and considering your specific needs, you’ll invest in a double-sink vanity that looks good and fits well in your space. Needless to say, it will serve you for many years to come. But to be sure you’re getting value for your money, call a contractor to help you choose and install your vanity. Need help with a bathroom sink remodel near you?  Request a quote or call us at 212-920-9163.

Frequently Asked Questions

Measure the width, depth, and height of the space, accounting for plumbing fixtures, clearance, and overhangs like countertops and backsplashes.

Measure the width, depth, and height of the space, keeping in mind plumbing fixtures, clearance, and overhangs like countertops and backsplashes.

Yes, install a compact 48-inch vanity or floating vanities which is ideal for small bathrooms

Vanity depths typically range from 12 to 24 inches, with 21 inches being the most common for family bathrooms

Standard heights are between 30 and 36 inches. Choose based on user height and ensure room for outlets, mirrors, and light fixtures

Double sink vanities add convenience, give extra storage, and create a luxurious appeal to your bathroom, increasing your home's value

Costs range from $500 to $6,000, depending on the size, materials, and design. Prefabricated vanities are more affordable than custom ones.

Frequently Asked Questions

Measure the width, depth, and height of the space, accounting for plumbing fixtures, clearance, and overhangs like countertops and backsplashes.

Measure the width, depth, and height of the space, keeping in mind plumbing fixtures, clearance, and overhangs like countertops and backsplashes.

Yes, install a compact 48-inch vanity or floating vanities which is ideal for small bathrooms

Vanity depths typically range from 12 to 24 inches, with 21 inches being the most common for family bathrooms

Standard heights are between 30 and 36 inches. Choose based on user height and ensure room for outlets, mirrors, and light fixtures

Double sink vanities add convenience, give extra storage, and create a luxurious appeal to your bathroom, increasing your home's value

Costs range from $500 to $6,000, depending on the size, materials, and design. Prefabricated vanities are more affordable than custom ones.

Published: April 2, 2025

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