Choose a vanity that leaves room to move. Keep at least 15 inches, ideally 18, from the toilet centerline to the vanity edge and 21 to 30 inches of open floor in front. Most single vanities are 24 to 48 inches wide; a double vanity needs at least 60 inches, with sink centers about 30 inches apart.
A vanity that is too big can shrink the whole bathroom. Doors bump into it, the toilet feels squeezed and there is nowhere to stand. One that is too small wastes counter space you will miss every morning.
The right size comes from a few measurements and two or three simple rules. This guide walks through width, depth and height, shows how much clearance you need around the toilet and the door, and ends with a quick worked example you can copy for your own wall.
Common vanity widths by bathroom
| Bathroom | Typical vanity width | Good to know |
|---|---|---|
| Powder room | 18 to 30 in | A floating top or narrow vanity keeps the floor open |
| Small full bath | 24 to 36 in | Often shares one wall with the toilet |
| Standard hall bath (about 5 by 8 ft) | 30 to 48 in | Check the door swing before choosing the widest size |
| Primary bath, single sink | 48 to 60 in | Room for a generous counter on both sides of the sink |
| Primary bath, double sink | 60 to 72 in or more | 72 inches gives each person real elbow room |
Clearances that matter more than width
Width is only half the decision. The space around the vanity decides whether the room feels comfortable. These figures come from the US residential building code (IRC) and the planning guidelines of the National Kitchen and Bath Association (NKBA):
- Toilet to vanity: the code minimum is 15 inches from the toilet centerline to the edge of the vanity; NKBA recommends 18 inches.
- In front of the vanity: at least 21 inches of clear floor by code, and NKBA recommends 30 inches so you can stand and bend comfortably.
- Double sinks: keep the sink centers about 30 inches apart so two people are not bumping elbows.
- Doors and drawers: make sure the bathroom door, the shower door and any vanity drawers can open fully without hitting each other.
Local codes can differ, so confirm the numbers with your contractor or building department before you finalize a layout.
How to measure your wall in 6 steps
- Measure the full wall from corner to corner, at counter height and at the floor, in case the walls are not square.
- Mark the toilet centerline and subtract the 15 to 18 inch clearance on that side.
- Check the door and shower swings and mark where they reach.
- Find the plumbing: note where the drain and supply lines come out of the wall and at what height.
- Note switches, outlets and windows that the vanity, mirror or backsplash must clear.
- Tape the outline of the vanity on the floor and wall with painter's tape and live with it for a day.
A 72-inch wall shares space with a toilet. The toilet center sits 18 inches from the side wall, and you leave the recommended 18 inches to the vanity edge. That uses 36 inches, so the largest comfortable vanity is about 36 inches wide. With the 15-inch minimum instead, a 39 to 40 inch vanity would just fit.
Choosing depth and height
Depth. Standard vanity cabinets are about 21 inches deep. In a narrow bathroom, 18 inches or less keeps the walkway open. Floating wood tops are often shallower: ours mostly run 16 to 20 inches. With a vessel sink, check that the bowl fits with room behind it for the faucet, and that a wall faucet spout reaches past the rim. Using a vessel sink? See our guide to vessel sink vanity height.
Height. Traditional vanities stand about 30 to 32 inches tall; comfort-height vanities are 34 to 36 inches. With a vessel sink, measure to the rim of the bowl rather than the counter. Most people find a rim height of about 34 to 36 inches comfortable, so the wood counter usually sits a few inches lower.
A 30-inch vanity for a vessel sink
Our Thornridge vanity stands 30 inches tall and 18 inches deep, a common combination for a vessel sink. It comes in four widths, 30, 40, 50 and 60 inches, from $2,847.90.
Single or double sink?
A double vanity sounds luxurious, but it needs space. Below 60 inches, two sinks leave almost no counter between them. At 60 inches, two sinks fit if you keep the bowls compact; at 72 inches or more, each person gets a real work area. If your wall is 48 to 60 inches, a single sink with a long counter is often more useful than two cramped ones.
A statement vanity for a primary bath
The Mossbury live edge vanity comes in four sizes from 50 to 79 inches wide, 30 inches high and 20 to 24 inches deep, from $5,830. The widest size suits a large primary bathroom.
Woodfurnist vanity sizes at a glance
Our 34 handmade vanities and vanity tops run from about 20 to 79 inches wide. A few examples, with prices checked on October 13, 2026:
| Vanity | Widths | Depth / height | From |
|---|---|---|---|
| Mossbank floating top | 9 sizes, 22 to 70 in | 16–18 in deep, 1.5–3 in thick | $340 |
| Hollowwick | 35, 40, 50 in | 20–24 in deep, 30–34 in high | $1,980 |
| Larchbrook floating | 40, 50, 60 in | 15–18 in deep | $2,589 |
| Thornridge | 30, 40, 50, 60 in | 18 in deep, 30 in high | $2,847.90 |
| Mossbury | 50, 60, 70, 79 in | 20–24 in deep, 30 in high | $5,830 |
A floating vanity carries the wood, the sink, the water and anyone leaning on it. Fix it into wall studs or solid blocking, and plan the drain and supply lines to come out of the wall at the right height before you tile.
When two sizes both fit, choose the smaller one if the room feels tight and the larger one if you need counter space. A floating vanity in the bigger size often feels lighter than a floor-standing cabinet in the smaller size. For styling ideas, see our spa-like bathroom ideas with warm wood.
Compare woods and styles in our solid wood bathroom vanity guide, learn how to protect a wood vanity from water, or browse all handmade bathroom vanities.
Frequently Asked Questions
What size vanity do I need for my bathroom?
Measure the wall, subtract 15 to 18 inches from the toilet centerline and keep 21 to 30 inches of clear floor in front. Most powder rooms take 18 to 30 inches, small baths 24 to 36 inches, and primary baths 48 to 72 inches.
How much space do you need between a toilet and a vanity?
The building code minimum is 15 inches from the center of the toilet to the edge of the vanity. The NKBA recommends 18 inches for more comfort.
How wide does a double vanity need to be?
At least 60 inches, and 72 inches or more is more comfortable. Keep the sink centers about 30 inches apart so two people can use them at once.
What is the standard depth of a bathroom vanity?
About 21 inches for a standard cabinet. Narrow vanities are 18 inches or less, and floating wood tops are often 16 to 20 inches deep.
How tall should a bathroom vanity be?
Traditional vanities are about 30 to 32 inches tall and comfort-height vanities 34 to 36 inches. With a vessel sink, aim for the rim of the bowl at about 34 to 36 inches.
How much clearance do you need in front of a vanity?
At least 21 inches of clear floor by code, and 30 inches is recommended by the NKBA so you can stand, bend and open drawers comfortably.
Editor's note: Clearance figures are based on the International Residential Code (IRC) and the NKBA Kitchen and Bath Planning Guidelines; local codes may differ, so confirm with your contractor. Typical widths and heights are common US industry ranges. Product sizes and prices were checked on woodfurnist.com on October 13, 2026. Bathroom images are styled product images; the vanity top photo was taken in our Da Nang workshop. See our shipping policy for production and delivery times.
