Bathroom Vanity Dimensions: Standard Widths, Depth and Height
Bathroom vanity sizes for planning or replacing one: standard widths, depths and heights in inches and centimeters, how much width two sinks need, metric sizes, and the clearances around a vanity.
Standard bathroom vanities are 24, 30, 36, 48, 60 or 72 in wide (61-183 cm), about 21 in (53 cm) deep, and 32-36 in (81-91 cm) tall including the countertop. Single-sink vanities run up to 48 in; double-sink vanities start at 60 in (152 cm), and 72 in (183 cm) is the comfortable size for two people.
- Common widths
- 24-72 in (61-183 cm)
- Standard depth
- 21 in (53 cm)
- Height
- 32-36 in (81-91 cm)
- Double sink from
- 60 in (152 cm)
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Standard bathroom vanity sizes
Stock vanities are built in 6 in width steps from 18 to 36 in, then 42, 48, 60 and 72 in. Depth and height vary less than width.
| Width | Metric | Sinks | Typical bathroom |
|---|---|---|---|
| 18-20 in | 46-51 cm | 1, small basin | Powder room, half bath |
| 24 in | 61 cm | 1 | Small full bath |
| 30 in | 76 cm | 1 | Standard hall or guest bath |
| 36 in | 91 cm | 1 | Hall bath with more counter |
| 42 in | 107 cm | 1, often offset | Single sink with side counter |
| 48 in | 122 cm | 1 (sometimes 2 small) | Primary bath with one sink |
| 60 in | 152 cm | 1 or 2 | Smallest practical double |
| 72 in | 183 cm | 2 | Standard double vanity |
| 84-96 in | 213-244 cm | 2 | Large primary bath, makeup area |
Vanity depth
- Standard: 21 in (53 cm) for the cabinet, plus about 1 in of countertop overhang, so 22 in (56 cm) to the front edge of the top.
- Shallow: 16-18 in (41-46 cm) for narrow bathrooms and walkways. Basins are smaller and the faucet often sits to one side.
- Deep: 22-24 in (56-61 cm) for large bathrooms. The extra depth puts the faucet farther away, which is less comfortable for shorter users.
For comparison, kitchen base cabinets are 24 in deep. See the kitchen cabinet dimensions if you are considering kitchen cabinets for a bathroom build.
Vanity height: standard vs comfort height
| Type | Height | Notes |
|---|---|---|
| Standard (older) | 30-32 in (76-81 cm) | Suits children and shorter adults; a lot of bending for tall users |
| Comfort height | 34-36 in (86-91 cm) | Common in new homes, close to kitchen counter height |
| Vessel sink cabinet | 30-32 in (76-81 cm) | A 4-6 in vessel brings the rim to about 34-38 in |
| Wall-hung (floating) | Mounted to 32-36 in (81-91 cm) | Height is set at installation |
| ADA accessible | 34 in (86 cm) maximum to rim or counter | With knee clearance below |
A vessel bowl adds its own height above the counter, so a 36 in cabinet with a 5 in vessel puts the rim at 41 in, which is uncomfortably high for most adults. That is why vessel sinks are paired with lower cabinets.
Double vanity size and sink spacing
Two sinks need space for two people's elbows. The NKBA planning guidelines recommend at least 20 in (51 cm) from a sink's centerline to a side wall or tall obstruction (15 in minimum) and 36 in (91 cm) between the centerlines of two sinks (30 in minimum).
- 60 in double vanity: sinks 30 in apart leave 15 in from each sink center to the cabinet ends. That meets the minimums, with little counter between basins.
- 72 in double vanity: sinks 36 in apart leave 18 in at each end. This is the most common double size and meets the recommended spacing between sinks.
- Between walls: if the vanity runs wall to wall, apply the 20 in recommendation to the walls, so two sinks at 36 in centers need about 76 in (193 cm) of wall.
In a 60 in space, one sink and 36 in of counter is often more usable than two sinks crammed 30 in apart. Two sinks pay off when two people really do get ready at the same time.
Metric and European vanity sizes
European vanity units are often wall-hung and shallower than US vanities. Widths follow 100 mm steps.
| Width (mm) | Width (in) | Depth (mm) | Use |
|---|---|---|---|
| 400-450 | 15.7-17.7 | 220-300 | Cloakroom, guest WC |
| 500 | 19.7 | 350-450 | Small bathroom |
| 600 | 23.6 | 400-500 | The common single size |
| 800 | 31.5 | 450-500 | Family bathroom |
| 1000 | 39.4 | 450-500 | Large single or compact double |
| 1200 | 47.2 | 450-500 | Double basin |
Basin rims in Europe are commonly set at 850-900 mm (33.5-35.4 in) above the floor, similar to US comfort height.
Clearances around a vanity
- In front: 21 in (53 cm) minimum clear floor by the International Residential Code (R307.1); 30 in (76 cm) recommended by the NKBA.
- Next to a toilet: the toilet's centerline must be at least 15 in (38 cm) from the side of the vanity (IRC); the NKBA recommends 18 in (46 cm).
- Doors and drawers: vanity doors open 12-18 in into the room. Keep them clear of the bathroom door swing and the toilet.
- Accessible lavatory (ADA 606): rim or counter at 34 in (86 cm) maximum, a 30 × 48 in (76 × 122 cm) clear floor space for a forward approach, knee clearance at least 27 in (69 cm) high, and exposed pipes insulated or shielded.
How to measure for a replacement vanity
- Measure the wall width at the floor and at counter height. Old walls are rarely square; use the smaller number.
- Note the plumbing. Measure the height of the drain and the supply valves and their distance from one wall. Drawers in a new vanity can clash with a drain that the old cabinet cleared.
- Check side clearances to the toilet, tub and door using the figures above.
- Plan the mirror and lights at the same time. Mirror widths and mounting heights are in the mirror size guide.
- Check the floor in front for a bath mat and drawer swing.
For tubs and showers that share the wall, see bathtub sizes and shower sizes. Kitchen sink basins, which are larger and deeper, are covered in the kitchen sink size guide.
Frequently asked questions
What is the standard height of a bathroom vanity?
Older and standard-height vanities are 30-32 in (76-81 cm) tall with the countertop. Comfort-height vanities, now the most common in new bathrooms, are 34-36 in (86-91 cm), close to kitchen counter height. Vessel sinks sit on top, so pair them with a 30-32 in cabinet.
How deep is a standard bathroom vanity?
The cabinet is usually 21 in (53 cm) deep, and the countertop adds about 1 in (2.5 cm) of overhang to 22 in. Shallow vanities for narrow bathrooms are 16-18 in (41-46 cm) deep.
What size is a single sink vanity?
Single-sink vanities are 18-48 in (46-122 cm) wide. 24, 30 and 36 in are the common sizes; 18-20 in units fit powder rooms, and 48 in gives the most counter space before a second sink makes sense.
How much space do you need in front of a vanity?
The International Residential Code requires 21 in (53 cm) of clear floor in front of a sink. The NKBA recommends 30 in (76 cm), which leaves room to open drawers and doors without stepping aside.
What size mirror goes over a vanity?
A mirror a few inches narrower than the vanity looks balanced: about 20-22 in wide over a 24 in vanity and 30-34 in over a 36 in vanity. Over a double vanity, use one wide mirror or two mirrors centered on the sinks. See the mirror size guide for heights.