Standard bathroom vanity sizes
| Measurement | Standard size | Good to know |
|---|---|---|
| Width | 24″ (61 cm), 30″ (76 cm), 36″ (91 cm), 48″ (122 cm), 60″ (152 cm) and 72″ (183 cm) | Under 48″ suits one sink; two sinks need 60″ (72″ is comfortable) |
| Height, traditional | 30–32″ (76–81 cm) to the top of the counter | A vessel basin adds 4–6″ (10–15 cm), so vessel vanities are built lower |
| Height, comfort | 34–36″ (86–91 cm) to the top of the counter | Same as a kitchen counter, and easier on adult backs |
| Depth | 21″ (53 cm) cabinet, about 22″ (56 cm) with the top | 16–18″ (41–46 cm) in a tight powder room |
| Floating vanity | Counter at 34–36″ (86–91 cm) off the finished floor | Anchored into studs or solid blocking |
| Clearance | About 30″ (76 cm) of clear floor in front | Keep a sink's centreline at least 15″ (38 cm) off the side wall |
Need a size that isn't on the list? Our Signature Series custom bathroom vanities are built in our Etobicoke shop to your exact width and depth, complete with countertop and sink. Select Series vanities come in preset sizes.
Vanity width: standard sizes, and why the wall decides
Retail vanities come in fixed widths — 24″ (61 cm), 30″ (76 cm), 36″ (91 cm), 48″ (122 cm), 60″ (152 cm) and 72″ (183 cm) — which is why so many bathrooms end up with an awkward strip of dead wall beside the cabinet. A custom vanity is built to the exact width of your space, wall to wall or right up to the tub deck. As a rule of thumb: under 48″ suits a single sink; 60″ and up is double-sink territory; and anything between is usually best spent on one generous basin with real counter space. Alcove installs should be measured at both the front and the back of the recess — walls are rarely parallel, and we scribe the cabinet to the tighter number.
Vanity height: comfort height won for a reason
The old standard was 30–32″ (76–81 cm) to the countertop. Modern “comfort height” is 34–36″ (86–91 cm) — the same as a kitchen counter — and it's what most adults find easier on the back at the sink. A vessel basin sitting on top of the counter effectively adds 4–6″ (10–15 cm), so vessel vanities are built lower to compensate. Because every Signature vanity leaves our Etobicoke workshop made to order, the height is a decision, not a default — tall households go 36″, and bathrooms children use daily often land around 34″.
Vanity depth: 21″ standard, shallower when the room demands it
Standard cabinet depth is 21″ (53 cm), carrying roughly a 22″ (56 cm) top once the overhang is counted. In a narrow powder room, a custom build can come down to 16–18″ (41–46 cm) and still take a proper undermount sink; shallower than that calls for a vessel or trough basin. Depth is also where door swings and traffic get decided — leave about 30″ (76 cm) of clear floor in front of the vanity where the room allows, and keep a sink's centreline at least 15″ (38 cm) off the side wall so elbows clear.
Floating vanity height: the height is yours, the structure is ours
Wall-mounted vanities are the largest part of our gallery, and sizing them adds one question: mounting height. The convention is to hang the cabinet so the counter lands at 34–36″ (86–91 cm) from the finished floor, with the tile running underneath. What the convention doesn't mention is structure — a floating cabinet carrying a stone top and full drawers must anchor into studs or solid blocking, engineered for the loaded weight, not the empty showroom weight. That anchoring is part of our installation on every floating piece we build.
How to measure for a bathroom vanity
Five minutes with a tape is all a quote needs: measure the wall width at counter height (and at the back of an alcove), note the centreline of the existing drain and supply lines, and photograph anything the cabinet must work around — baseboard, outlets, a window sill, the door swing. Then browse the vanity gallery, note the photo numbers you like from the photo index, and we'll size that exact design to your numbers — final site measurement before production is always ours to get right, not yours. Curious what the cabinet itself should be made of? The materials guide covers that.
Questions, answered.
What are the standard bathroom vanity widths?
Retail vanities come in fixed widths of 24″ (61 cm), 30″ (76 cm), 36″ (91 cm), 48″ (122 cm), 60″ (152 cm) and 72″ (183 cm). Under 48″ suits a single sink; 60″ and up is double-sink territory. A custom vanity skips the fixed widths and is built to the exact width of your wall.
What is the standard height of a bathroom vanity?
Traditional vanities sit at 30–32″ (76–81 cm) to the top of the counter; today's “comfort height” standard is 34–36″ (86–91 cm), matching kitchen counters and easier on adult backs. Because our Signature vanities are built to order, you pick the exact height — families often split the difference around 34″ when children share the bathroom.
How wide does a double-sink vanity need to be?
60″ (152 cm) is the practical minimum for two sinks with usable counter between them, and 72″ (183 cm) is comfortable. A 48″ (122 cm) double is possible but leaves almost no landing space beside each basin — at that width a generous single sink usually serves better. A custom build can also place the two basins off-centre to work around plumbing or a window.
How deep is a standard bathroom vanity?
The standard cabinet depth is 21″ (53 cm), giving roughly a 22″ (56 cm) countertop with overhang. In a tight powder room a custom vanity can drop to 16–18″ (41–46 cm) deep and still hold a proper sink; going shallower than that usually means a vessel or trough basin.
What height should a floating vanity be mounted at?
Floating vanities are typically hung so the countertop lands at 34–36″ (86–91 cm) from the finished floor — the same comfort height as a floor-mounted unit. The cabinet must be anchored into wall structure (studs or blocking) rated for the stone top and full drawers, which is part of our installation on every wall-mounted piece.