Which Is Right for Your Bathroom?

Choosing between a single sink vanity and a double sink vanity is one of the most important decisions when designing or remodeling a bathroom. The choice affects not only the appearance of the space but also how functional the bathroom will be for daily use.

Single vanities are typically used in smaller bathrooms and range from 24 to 48 inches wide, while double sink vanities usually range from 60 to 72 inches and are commonly installed in master bathrooms.

Many homeowners struggle with this decision because each option offers different benefits depending on the bathroom size, number of users, and available plumbing.

In this guide, we’ll explain:

• The key differences between single and double vanities
• Bathroom size requirements for each option
• Plumbing cost differences
• Which option works best for couples, families, and guest bathrooms
• How vanity choice can affect home resale value

By the end of this guide, you’ll know exactly which vanity type is the best fit for your bathroom.

Before diving into details, here is a quick overview of how the two options compare.

A single vanity contains one sink and one cabinet base. These vanities are the most common option for smaller bathrooms and guest bathrooms.

Typical widths include:

• 24 inches
• 30 inches
• 36 inches
• 48 inches

Space Efficient:

Single vanities are ideal for bathrooms where space is limited.
They work well in:

• apartments
• powder rooms
• guest bathrooms

Lower Installation Cost:
Because they require only one plumbing line, installation costs are generally lower.

More Counter Space in Smaller Bathrooms:
In a compact bathroom, a single sink vanity can provide more usable counter space.

Disadvantages of Single Vanities:
Single vanities may not be ideal for shared bathrooms because only one person can use the sink at a time. This can create congestion during busy morning routines.

A double vanity includes two sinks installed in one cabinet unit. These vanities are typically installed in larger bathrooms, especially master bathrooms.

Common widths include:

• 60 inches
• 72 inches

Ideal for Shared Bathrooms:

Double sinks allow two people to use the vanity simultaneously.

This is especially helpful for:

• couples
• families with children
• busy morning routines

Increased Storage:
Double vanities usually include more drawers and cabinet storage.

Higher Luxury Appeal:
Large vanities often create a luxury master bathroom feel.

Requires More Space:
Double vanities need significantly more wall space and floor space.

Higher Plumbing Costs:
Two sinks mean additional plumbing installation.

Bathroom size is the most important factor when deciding between a single or double vanity.

Experts typically recommend at least 60 inches of wall space for a double vanity.

In addition, you should leave:

• 30 inches of walking space in front of the vanity
• clearance from toilets and walls

Without enough space, a double vanity can make the bathroom feel cramped.

Another major difference between single and double vanities is plumbing complexity.

Double vanities require:

• additional drain lines
• extra water supply connections
• more installation labor

However, many homeowners feel the convenience of double sinks is worth the added cost.

Couples often prefer double vanities because they allow both partners to use the bathroom at the same time.

Benefits include:

• separate sink areas
• reduced morning congestion
• more personal storage space

In master bathrooms, double vanities are now considered a modern design standard.

Families with children may benefit from larger vanities with two sinks.

Advantages include:

• multiple people can brush teeth at the same time
• more drawer storage for toiletries
• easier morning routines

Guest bathrooms usually do not require two sinks.

Single vanities are often the best choice because they:

• save space
• reduce renovation costs
• maintain a clean layout

Bathroom design can influence home resale value.

Many real estate agents report that double vanities are highly desirable in master bathrooms.

Benefits for resale:

• perceived luxury upgrade
• increased functionality
• modern design expectations

However, installing a double vanity in a bathroom that is too small can negatively affect the layout.

Ask yourself these questions:

How many people use the bathroom daily?
If two people regularly share the bathroom, a double vanity may be worth the investment.

How much wall space do you have?
Bathrooms under 60 inches of available wall space should typically use single vanities.

What is your renovation budget?
Double vanities usually cost more due to:

• larger cabinet size
• additional plumbing
• larger countertops

Bathroom type strongly influences vanity choice.

If you're choosing a vanity for your bathroom, these are the most popular sizes.

• 24 inch vanities for powder rooms
• 30 inch vanities for compact bathrooms
• 36 inch vanities for guest bathrooms
• 48 inch vanities for medium bathrooms
• 60 inch double vanities for master bathrooms
• 72 inch luxury double vanities

Each size offers different storage capacity and layout flexibility.

Is a double vanity worth it?
Double vanities are worth it for shared bathrooms because they allow two people to use the space at the same time.

Can you put two sinks in a 48 inch vanity?
Some 48-inch vanities can fit two small sinks, but most double vanities start at 60 inches wide.

What size vanity is best for a master bathroom?
Most master bathrooms use 60-inch or 72-inch double vanities.

Does a double vanity increase home value?
Double vanities can improve resale appeal, especially in master bathrooms.