There is a wide range of available vanity dimensions. To find the right vanity size for your bathroom, follow these super easy steps.

Tip!

Read How to Choose a Bathroom Vanity for everything else you need to know when making the right choice for your space, and check out Bathroom Vanity Ideas Sure To Make A Statement for our favorites.

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Step 1: Determine Project Scope
Step 2: Measure the Width of Your Space
Step 3: Measure the Depth of Your Space
Step 4: Measure the Height of Your Space
Standard Vanity Dimensions
Room Layout Considerations
Important Compatibility Considerations

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Step 1: Determine Project Scope

If you’re replacing an existing vanity with the same size, simply measure the length, width, and depth of your current vanity and choose a replacement with the same dimensions. If you’re starting from scratch, your bathroom’s available space will dictate your next steps.

Step 2: Measure the Width of Your Space

To find the width of your space, measure from wall to wall (side to side), taking into account where your bathroom and shower doors swing. Make sure these doors won’t hit your vanity. To accommodate a single-sink vanity, you’ll need at least 18" of width available. For a double-sink vanity, you’ll need at least 48" of width available. Remember that the vanity top will typically add ½ to 1" on either side of the vanity width.

Step 3: Measure the Depth of Your Space

To find the distance of usable space, measure from the back wall outward. Remember: you’ll need clearance for vanity drawers and doors to open, and enough room for a person to pass by easily. We recommend at least 30" of clear floor space in front of your vanity in order to feel comfortable walking through. The most common vanity depths are 17" – 24".

Step 4: Measure the Height of Your Space

To find the right height for your vanity, measure from the floor up, factoring in faucet height and existing features, like the placement of a potential backsplash and electrical outlets. For floating vanities, adjust the mounting so your countertop sits waist-high (or slightly lower for small children). The standard vanity height is 30" – 36".

Standard Vanity Dimensions

Standard vanity dimensions are typically between 18" – 72" wide. For a single vanity, the most popular widths are 24", 30", 36", 48", and for double vanities the most popular widths are 60" and 72", but start at 48". The standard depth of a vanity is typically around 20", but narrower options are available. The standard vanity height is 32", but ranges from 30" – 36".

Room Layout Considerations

• Make it fit: Measure the width, height, and depth of the intended vanity location or of the current vanity you are replacing.
• Maintain clearances: Consider needs for walking room; plan for door swings and drawer pull out space.
• Adhere to compliance: Ensure the center of your toilet is at least 18" from vanity’s side, and tub has min 30" of clearance space.

Important Compatibility Considerations

• Plan your faucet: Ensure the faucet spout will reach the sink and the number of faucet installation holes match the vanity.
• Scale: Ensure the width of your vanity is to scale with existing mirrors or cabinets.
• Identify existing elements: Review where the water from your sink needs to flow from, plus any outlets or electrical switches.

Tip!

Now that you've selected the correct-sized vanity for your space, read our How to Install a Bathroom Vanity guide to begin.