What’s the right size for a bathroom vanity? It’s a question that comes up often, and the answer depends on a few key factors. In this guide, we’ll break down standard vanity sizes, dive into customizable options, and show you how choosing the right dimensions can improve your bathroom’s storage and style. Whether you’re a homeowner or designer, you’ll find useful tips to help you pick the perfect vanity for any space.
What Are Standard Bathroom Vanity Sizes?

Width
When choosing a bathroom vanity, width impacts the available space for sinks and storage. Here are the standard widths for bathroom vanities:
- 18″: Ideal for very small spaces or powder rooms.
- 24″: Commonly used in small bathrooms or guest bathrooms.
- 30″: A practical option for tight spaces while still offering functional storage.
- 36″: A standard size that works well in most medium-sized bathrooms.
- 42″: Provides more storage and a larger countertop, suitable for family bathrooms.
- 48″ to 72″: These larger vanities are designed for master bathrooms, providing ample space for double sinks and extra storage.
Depth
The bathroom vanity depth directly affects your countertop space and storage below. Here are the standard depth ranges:
- 20″ to 21″: This is the typical depth for most vanities. It gives you enough space for toiletries, a soap dispenser, or even a countertop appliance like a hair dryer, while still leaving room for under-sink storage.
- Less than 20″: In smaller bathrooms, you might go with a more compact vanity. Custom depths can go down to 18″ or even smaller, perfect for tight spaces that still need to hold some essentials.
Height
Standard bathroom vanity heights range from 32″ to 36″. The 36″ height is the most common, providing a comfortable and ergonomic reach. This height aligns with kitchen countertops, making it ideal for taller users. Older homes may have vanities around 32″, but these are less common today. For a more modern and accessible option, comfort-height vanities (between 34″ and 36″) are gaining popularity for their convenience and ease of use.
Customizable Vanity Cabinet Dimensions

While standard vanity sizes work for many spaces, custom vanities offer the flexibility to perfectly fit unique layouts and meet specific needs. Customization is becoming increasingly popular as homeowners and businesses seek to personalize their spaces.
- Perfect Fit for Any Layout: Custom vanities are designed to fit precisely into your space, whether it’s a narrow bathroom or an irregular layout. Unlike standard sizes, custom dimensions optimize every inch of the room, ensuring your bathroom vanity width and depth are perfectly tailored.
- Maximized Storage: Custom designs allow for deeper drawers, additional shelves, and compartments tailored to your storage needs. This means more room for toiletries, towels, or cleaning supplies—something standard options often lack. Custom bathroom vanity depth options, such as shallower or deeper cabinets, ensure you have the right amount of space for all your essentials.
- Enhanced Functionality: Custom vanities can include specialized features like pull-out organizers, hidden compartments, or even built-in hampers to enhance convenience and organization. You can also adjust the bathroom vanity height for optimal ergonomics, making it more comfortable to use.
- Aesthetic Freedom: Customization lets you choose the materials, finishes, and hardware that align with your bathroom’s design. From modern to traditional, a custom vanity fits your style perfectly.
At Kangjian, we offer a one-stop solution for your entire bathroom renovation. From custom vanities to shower doors, bathtubs, wall panels, and smart toilets, we provide a complete package to suit your needs.
Maximizing Storage and Choosing the Right Vanity Dimensions

Maximizing storage is one of the key reasons people upgrade their bathroom vanities. Whether you’re working with a small or spacious bathroom, there are ways to increase storage without compromising design.
Design Considerations
In smaller bathrooms, space-saving vanities are a must. Consider narrow but deep cabinets with drawers to maximize storage capacity. Corner vanities are another great option for tight spaces. They can make use of otherwise wasted corners, offering storage without taking up too much room.
In larger bathrooms, you can afford a bigger footprint, offering more space for double sinks or a larger countertop. A wall-mounted vanity not only creates the illusion of more space but also frees up floor area for other features, such as shelving or a laundry basket. Plus, it makes cleaning easier.
Storage Solutions
For increased storage, look for vanities that feature both shelves and drawers. Drawers are ideal for storing smaller items like cosmetics, razors, and hair tools, while shelves work well for towels, toiletries, or decorative pieces. Some vanities even include built-in pull-out organizers or dividers to keep everything neat and easy to access.
Additionally, if you’re opting for a larger vanity, consider adding under-sink storage or double cabinets. Some custom vanities come with pull-out trays, which are perfect for organizing cleaning supplies, extra toilet paper, or even larger items like hairdryers.
Plumbing Considerations
The position of pipes and drainage can limit the available space for your vanity. If plumbing is in an awkward location or there are obstructions, a custom vanity can help. Custom designs allow you to adjust dimensions and configurations, ensuring a proper fit without interfering with the plumbing system.
Single Sink vs. Double Sink Vanities
Choosing between a single sink vanity and a double sink vanity depends largely on the available space and the bathroom’s functionality. Here’s a quick comparison to help you decide which one works best for your needs:
| Feature | Single Sink Vanity | Double Sink Vanity |
|---|---|---|
| Ideal for | Smaller bathrooms or tight spaces | Shared bathrooms, especially master bathrooms |
| Space Required | Compact, fits into smaller areas | Requires larger bathrooms with enough width and layout |
| Functionality | Suitable for single users, convenient for one person | Allows simultaneous use by two people, great for couples |
| Storage | Generally more storage underneath, less cabinet space | More cabinet space, often with separate compartments |
| Cost | More affordable | Typically more expensive due to larger size and additional plumbing |
| Installation Complexity | Easier installation and fewer plumbing issues | More complex installation due to dual plumbing setup |
Popular Bathroom Vanity Styles
Vanity styles come in various configurations and materials, each offering different aesthetic and functional benefits. Here are some of the most popular styles:
- Traditional Vanities: These typically feature wood construction, with intricate detailing. They often come in rich finishes such as cherry, walnut, or oak.
- Modern Vanities: Sleek, clean lines and minimalist designs characterize modern vanities. These often feature a combination of wood and metal or a floating design.
- Transitional Vanities: This style combines elements of both traditional and modern designs. Transitional vanities offer more versatility in design, making them suitable for a variety of bathroom styles.
- Industrial Vanities: With exposed piping, raw materials, and unfinished finishes, industrial vanities add a touch of urban appeal to any bathroom.
Comparing Standard vs. Custom Vanity Cabinet Dimensions
When choosing between standard and custom vanities, there are pros and cons to consider:
| Feature | Standard Vanity Cabinet Dimensions | Custom Vanity Cabinet Dimensions |
|---|---|---|
| Cost | Typically ranges from $200 to $1,000, depending on size and materials. | Higher cost, ranging from $1,200 to $3,000, due to customization and premium materials. |
| Installation | Quick and easy, typically within 1–2 days. | Takes 3–5 days due to custom fitting and design. |
| Design Flexibility | Limited to standard sizes (24″, 36″, 48″ widths) and basic finishes. | Fully customizable in width, depth, height, and material, with options like shallow vanities or corner units. |
| Space Utilization | Best for standard layouts but may not maximize space in smaller bathrooms. | Optimized for unique layouts, including narrow, deep vanities (as shallow as 18″). |
| Storage Options | Basic storage, usually 2–3 drawers or shelves. | Customizable with up to 6–8 drawers, pull-out trays, and hidden compartments for better organization. |
| Plumbing Flexibility | Limited to standard plumbing configurations. | Flexible design that accommodates unique plumbing setups or non-ideal pipe locations. |
Kangjian’s Expertise in Custom Vanity Manufacturing
The right vanity can completely transform your bathroom—whether it’s a standard or custom size. Custom vanities, in particular, offer the perfect balance of function and design, tailored to your exact needs.
As a leading bathroom vanity manufacturer, Kangjian offers high-quality custom vanities designed to meet the needs of both residential and commercial spaces. From custom vanities to shower rooms, bathtubs, and smart toilets, we handle it all. With certifications like SGCC, CE, and CUPC, we ensure your bathroom lasts and functions beautifully.
Let’s bring your vision to life. Contact Kangjian today and start designing the perfect bathroom!