Standard Bathroom Vanity Dimensions Chart: Height, Depth & Width (2026)
Bathroom vanities are the one cabinet most people get wrong. Kitchen cabinet dimensions are standardized and well known; vanity dimensions changed about twenty years ago and half the internet still quotes the old numbers.
Here is the current bathroom vanity dimensions chart, plus the reasoning behind each number.
Quick reference: standard bathroom vanity dimensions
| Measurement | Standard | Range |
|---|---|---|
| Height | 34.5 in. (36 in. with countertop) | 32-36 in. |
| Depth | 21 in. | 18-24 in. |
| Width | 30 in. or 36 in. | 24-72 in. |
| Toe kick height | 4 in. | 3-4.5 in. |
| ADA counter height | 34 in. max | Fixed by code |
1. Bathroom vanity height
This is where the old numbers cause trouble.
- Standard height (current): 34.5 in. for the cabinet box, finishing at 36 in. with a countertop. This is called comfort height, and it now matches standard kitchen base cabinet height.
- Standard height (legacy): 30 to 32 in. This was the norm for most of the 20th century, sized around children rather than adults.
The average adult has to stoop at a 32 in. vanity. Nearly every vanity sold today is comfort height, and it is what we build. The exception is a bathroom used mainly by young children.
Browse our in-stock bathroom vanity cabinets — all comfort height.
2. Bathroom vanity depth
- Standard depth: 21 in. Plan around this number. Note it is three inches shallower than a kitchen base cabinet, which is 24 in.
- Shallow depth: 18 in. For powder rooms and tight hallway baths. You lose storage, you gain floor clearance.
- Deep: 24 in. Used with vessel sinks or when the vanity doubles as significant storage.
Countertops overhang the cabinet by about 1 in., so a 21 in. vanity finishes at roughly 22 in. total depth. Measure the door swing before committing to anything over 21 in. in a small bathroom.
3. Bathroom vanity width
| Width | Sink | Typical use |
|---|---|---|
| 24 in. | Single | Powder room, small guest bath |
| 30 in. | Single | The most common single-sink size |
| 36 in. | Single | Single sink with real counter space either side |
| 48 in. | Single or double | The practical minimum for two sinks — tight |
| 60 in. | Double | The comfortable double-sink standard |
| 72 in. | Double | Primary bath, generous |
The double-sink rule: do not attempt two sinks under 48 in. of width. Below that you get two cramped bowls, no usable counter, and no under-sink storage, because two plumbing runs eat the entire cabinet. A single sink in a 48 in. vanity is more useful than two sinks in the same space. Two sinks start making sense at 60 in.
4. Clearances you must not skip
- In front of the vanity: minimum 21 in. of clear floor space (30 in. is comfortable)
- Beside a toilet: at least 15 in. from the toilet centerline to the vanity edge
- Between two sinks: at least 30 in. centerline to centerline
- Mirror width: should not exceed the vanity width
5. ADA and accessible vanity dimensions
- Counter height: no more than 34 in. from floor to counter top
- Knee clearance: at least 27 in. high, 30 in. wide, 11 in. deep under the counter
- Approach: a 30 x 48 in. clear floor space in front
Note the conflict: an ADA vanity is lower than a modern comfort-height vanity, and it must be open underneath, which means giving up the sink base cabinet entirely.
6. Vanity cabinet types
- Vanity sink base — open interior for plumbing, doors only. The default.
- Vanity drawer base — all drawers, no sink. Pairs with a sink base in wider layouts.
- Vanity sink combo — sink base with a bank of drawers on the left or right. Best storage-per-inch at 36 in. and up.
- Knee drawer — a shallow drawer directly under the sink bowl. Recovers otherwise wasted space.
See all four in our bathroom vanity collection, available in Shaker White, Shaker Gray, Shaker Pearl, and Shaker Caramelo.
Frequently asked questions
What is the standard bathroom vanity height?
34.5 in. for the cabinet, 36 in. finished with a countertop. This is comfort height and it is the current standard. The older 30 to 32 in. height is still widely quoted but is no longer what is sold or installed in new work.
What is the standard bathroom vanity depth?
21 in. Shallow vanities run 18 in. for tight spaces; deep vanities run 24 in. All are 3 in. shallower than a kitchen base cabinet at the same nominal size.
How wide should a bathroom vanity be?
30 in. is the most common single-sink width. 36 in. gives usable counter on both sides of the bowl. For two sinks, 60 in. is the comfortable standard; 48 in. is the absolute floor and it will feel cramped.
Is a bathroom vanity the same depth as a kitchen cabinet?
No. A kitchen base cabinet is 24 in. deep. A bathroom vanity is 21 in. You cannot substitute one for the other and expect the plumbing, countertop, and door clearances to work out.
How much space do you need in front of a vanity?
21 in. of clear floor space is the code minimum in most jurisdictions. 30 in. is what actually feels comfortable when someone needs to walk past you at the sink.
What is the difference between comfort height and standard height?
Comfort height (34.5 in. cabinet, 36 in. finished) is the modern standard and matches kitchen counter height. "Standard height" is often used to mean the legacy 30 to 32 in. vanity. If a listing says "standard height" without a number, ask which one they mean — the difference is four inches and you will feel every one of them.
Planning a bathroom remodel?
All CNT Cabinet vanities are built to the same standard as our kitchen line: 3/4 in. solid wood face frames, 1/2 in. cabinet-grade plywood boxes, solid wood dovetail drawer boxes, and soft-close hardware throughout. Not the particleboard vanities you find at a big box store.
Everything is in stock at our Norcross, GA warehouse at wholesale prices, available for same-day pickup. We serve Atlanta, Marietta, Duluth, Alpharetta, and metro Georgia.
See also: standard kitchen cabinet sizes and how tall a kitchen base cabinet is.