Bathroom Vanity Sizes and Heights: Widths, Depths and Clearances

Bathroom vanity sizes come from a short menu: widths of 24, 30, 36, 48, 60 and 72 inches, a depth of about 21 inches (18 in narrow-depth models), and a height of either 30 to 32 inches, the older builder standard, or 34 to 36 inches with the top on, which is what most people now call comfort height. Two sinks need at least 60 inches of vanity once the model plumbing code's spacing rules are applied, and the International Residential Code asks for 21 inches of clear floor in front of the sink and 15 inches from a toilet's centerline to the side of the cabinet.

That is the chart every guide prints. We sell cabinets for a living, and the questions we actually get are one layer down: why a "34½-inch" vanity measures 35¾ inches once the top is on, why a 48-inch double vanity is a bad idea, whether a kitchen base can go in a bathroom, and what fits a 5-by-8 hall bath with a tub at one end. This guide answers those with the real dimensions from the spec books we order from, the code numbers behind the clearances, and a few worked layouts with prices. If you already know you want Fabuwood, our Fabuwood bathroom vanity guide has every SKU in that line; this page stays brand-neutral.

Key takeaways

• Common widths are 24, 30, 36, 48, 60 and 72 inches. Nothing wider than 60 inches comes as one box in the lines we sell; a 72-inch vanity is two or three cabinets set side by side.
• Every vanity box in our spec books is 21 inches deep. We have no 18-inch or 12-inch-deep vanity to offer, and we would rather say so than sell you something that doesn't exist.
• Height is box plus top. A 34½-inch box with a 1¼-inch stone top finishes at 35¾ inches. J&K builds its vanities at 33 inches, and the accessible boxes we can supply run 32½.
• Two sinks need 30 inches between their centerlines under the IRC and 15 inches from each centerline to a side wall, which is where the 60-inch minimum for a double vanity comes from. NKBA recommends 36 and 20, which works out to about 76 inches between walls.
• Budget the cabinet, the top and the installation separately. Cabinet-only prices in our store start at $438.75 for a 24-inch sink base and run to $1,196.00 for a 60-inch combo in Fabuwood Galaxy.

Table of Contents

• Bathroom Vanity Sizes Chart: Widths From 24 to 72 Inches
• Standard Vanity Height vs Comfort Height
• How the Finished Height Adds Up: Box, Top and Sink
• How Deep Is a Bathroom Vanity? 21 vs 18 Inches
• Vanity Dimensions in the Spec Books We Order From
• Single or Double Sink: Where the 60-Inch Line Comes From
• Clearances Around a Vanity: Code Minimums and NKBA Advice
• How to Measure for a New Vanity
• Worked Examples: A 5×8 Bath, a 72-Inch Double and a Vessel Sink
• Vanity Cabinet Only vs Vanity With a Top
• Using a Kitchen Base Cabinet as a Vanity
• Accessible Vanity Heights and the ADA
• What a Vanity Costs by Width
• Frequently Asked Questions

Bathroom Vanity Sizes Chart: Widths From 24 to 72 Inches

Vanity widths follow the same 3-inch grid as kitchen cabinets, so you will see 27, 33 and 39-inch boxes in a catalog as well. The six widths below are the ones people ask for by name, and each one tends to go with a particular kind of room. The "sinks" column is about spacing, not preference; the section on single versus double sinks shows the arithmetic.

One point the charts never make: past 60 inches, a vanity is a run of cabinets, not a single piece of furniture. Fabuwood's widest one-box vanity is its 60-inch sink-and-drawer combo, US Cabinet Depot tops out at 48 inches, KCD's double-door vanities stop at 42, and J&K's at 36. A 72-inch vanity is two 36s, or a pair of 30s with a 12-inch drawer base between them, under one continuous countertop. That is good news, because it means almost any wall can be filled to within a filler strip, and you choose where the drawers go.

Standard Vanity Height vs Comfort Height

For most of the last half century, the standard bathroom vanity height was 30 to 32 inches to the top of the counter. You still find that height in older houses and in a lot of furniture-style vanities sold online. The usual explanation is that a lower counter was a compromise for a household that included children. Whatever the reason, adults at 5'6" and up spend years bending to wash their faces at it, and that is why the height moved.

Comfort height means a finished counter of roughly 34 to 36 inches, close to a kitchen counter. It is now the default in cabinet-grade vanities: three of the lines we order from build their vanity boxes 34½ inches tall, the same as a kitchen base, and with a stone top the counter lands around 35¾ inches. When someone tells us their new vanity "feels like the kitchen," that is exactly why.

NKBA's bathroom planning guidelines put the useful range for a lavatory anywhere from 32 to 43 inches depending on who uses it, and they note that local codes may apply. In other words, there is no code-mandated vanity height for a private home. There is a comfortable one for the people in it, and a hard ceiling of 34 inches only when accessibility rules apply.

So which height is right? For a shared hall bath used by adults, comfort height. For a kids' bath, the older height or a step stool: children grow, a lowered cabinet doesn't. In a primary bath with two very different heights, some people split the run, one side at 34½-inch boxes and the other lower, but it complicates the top and the backsplash. Two matching boxes with a sensible top thickness is the easier call.

Comfort height also moves everything above the counter. Two extra inches push the backsplash, faucet and outlet line up, so a mirror or sconce roughed in for a 31-inch vanity can end up low or crowded. A 34½-inch box plus a stone top needs about 36 inches of clear wall under any window sill, tile band or sconce. Check that before you order, not when the plumber is on site.

How the Finished Height Adds Up: Box, Top and Sink

A catalog lists the cabinet height. The number you live with is the height of the counter or, with some sinks, the height of the bowl's rim. The difference is the top and the sink, and it is easy to lose two or three inches without noticing. Our countertop heights and thicknesses guide covers the slab side in detail; for a vanity, the math looks like this.

The sink changes the picture only when it sits on top of the counter. An undermount bowl's rim is the counter itself. A drop-in adds its lip, usually a fraction of an inch. A vessel sink adds its whole height, and that is where people get caught. Put a 5½-inch vessel on a 34½-inch box with a 1¼-inch top and the rim is at 41¼ inches. That is inside NKBA's range, but most adults will find it high.

If you want a vessel on a comfort-height box, you have three honest options: pick a low-profile vessel (4 inches or under), choose a semi-recessed bowl that drops partly into the counter, or start from a lower box. J&K's 33-inch vanities buy you 1½ inches; beyond that you are into the lowered accessible bases, which are deeper. What you should not do is plan the vessel and the box separately and discover the total at install.

Flooring counts too. New tile over a mud bed or an underlayment raises the floor, and the counter rises with it. The cabinet doesn't change; the measurement from the old floor does. Plan heights from the finished floor.

How Deep Is a Bathroom Vanity? 21 vs 18 Inches

The standard depth of a bathroom vanity cabinet is 21 inches, three inches shallower than a 24-inch kitchen base. The top usually runs 22 inches deep, giving a small overhang at the front, and stock vanity tops sold at home centers are typically made in that 22-inch depth with widths an inch wider than the box (a 31-inch top for a 30-inch vanity). Confirm the exact overhang with whoever makes your top.

Narrow-depth vanities, usually around 18 inches, exist in the retail and furniture-style market for tight baths. Here is the part we want to be straight about: every vanity box in the spec books we order from is 21 inches deep. That holds for Fabuwood Allure and Illume, US Cabinet Depot, KCD and J&K. We don't have an 18-inch-deep vanity to sell, and we don't have a 12-inch-deep one either. The accessible vanity sink bases we can supply go the other way, at 24 inches deep.

There are two partial workarounds. Fabuwood's spec book lists a paid depth-reduction modification for base cabinets (CUT-BASE, down to a 12-inch minimum) and a separate one for sink bases. Whether a cut-down box still clears your bowl, faucet and drain is a job-by-job question, so we check it against the actual sink before quoting it. The other answer, in a powder room that genuinely cannot give up the floor, is a wall-hung sink with no cabinet at all.

How much do three inches matter? Less than people fear in most rooms. In a 5-foot-wide bath, a 22-inch top leaves 38 inches in front of the vanity, well past the 21-inch code minimum and NKBA's 30-inch recommendation. Depth starts to matter when the vanity faces a toilet or tub across a narrow room, or when the entry door swings into its path. Measure that clear space first; if it is over 30 inches with a 22-inch top, the standard depth is fine.

Vanity Dimensions in the Spec Books We Order From

Brand-neutral charts give you ranges. When you order, you get one manufacturer's boxes, and they do not all agree. This table is taken from the vanity pages of the spec books for the lines we carry. Widths are the sink-carrying pieces; drawer bases and door bases fill in beside them.

Our online store lists the Fabuwood vanity boxes by finish under vanity cabinets. For the other lines, ask us which vanity pieces are offered in the finish you want before you plan around them; not every piece exists in every door style. The full pages are in our spec book library, and our reviews of US Cabinet Depot, J&K and the Fabuwood Illume line cover construction and finishes. Box material matters more in a bathroom than a kitchen because of the humidity, which is the subject of our furniture board vs plywood comparison.

Single or Double Sink: Where the 60-Inch Line Comes From

"You need 60 inches for two sinks" gets repeated everywhere without the reason, and the reason is useful because it tells you when you can break it. NKBA's planning guidelines, which read the International Residential Code (IRC), list two code minimums for sinks: 30 inches between the centerlines of two lavatories, and 15 inches from a lavatory's centerline to a side wall. Put a vanity between two walls and add them up: 15 + 30 + 15 = 60 inches. That is the smallest double vanity that meets the model code, with each bowl dead-centered in its half.

NKBA's own recommendations are more generous: 36 inches between sink centers and 20 inches from a sink's centerline to a side wall or tall cabinet. Between two walls that adds up to 76 inches, which is why a 72-inch double in a 75-inch alcove feels right and a 60-inch double feels like sharing a kitchen sink.

The rules loosen when an end is open. If one side of the vanity faces open floor instead of a wall or a linen tower, that side's 15-inch minimum has nothing to measure against, and the practical limit becomes elbow room. A 60-inch double with one open end is noticeably easier to use than the same cabinet boxed in.

Our rule of thumb for customers:

• Under 60 inches: one sink. A 48-inch double cannot get its bowls 30 inches apart and still leave room at the walls, so put the width into drawers.
• 60 to 71 inches: two sinks are possible. Ask whether two people really use the room at the same time. One bowl plus two drawer stacks is often the better bathroom, and it is one less trap and set of supply lines.
• 72 inches and up: two sinks with real counter between them.

Clearances Around a Vanity: Code Minimums and NKBA Advice

Two sets of numbers get mixed up in most articles. The first is the building code: the IRC is a model code published by the International Code Council, and a state or city adopts a particular edition, often with local amendments. It sets minimums your inspector can enforce. The second is the NKBA's Bathroom Planning Guidelines with Access Standards, which are recommendations for a room that is comfortable to use, not law. The table puts them side by side, with the code references NKBA cites (its current guidelines are based on the 2015 IRC).

The 21-inch number deserves a second look. A vanity drawer box in these lines is around 17 to 18 inches deep, so a fully opened drawer uses most of that 21 inches by itself. You can pass inspection with 21 inches and still have nowhere to stand while you dig through the bottom drawer. That is the real argument for NKBA's 30.

The toilet number trips up more remodels than anything else. It is measured from the centerline of the toilet to the nearest edge of the vanity, including the countertop overhang, not the cabinet box. A 30-inch vanity that "fits" by the box can fail by the top's side overhang, and the fix at that stage is a new top.

Always check with your local building department before you commit to a tight layout. Adopted editions and amendments differ, and plumbing work often needs a permit and, in many places, a licensed plumber. For the kitchen equivalents of these numbers, see our kitchen dimensions guide.

How to Measure for a New Vanity

Most sizing mistakes we see come from measuring the wall once, at one height, and ordering a box that equals the number. Walls are rarely square and plumb, and a cabinet has to get into the room before it can go against a wall. This is the order we'd do it in:

1. Measure the wall width three times: at the floor, at about 34 inches, and at backsplash height. Use the smallest number. Note whether each end is a wall, a tub, a tall cabinet or open floor.
2. Leave room for fillers in an alcove. A 60-inch cabinet will not slide into a 60-inch opening. Plan the boxes an inch or more under the opening and close the gaps with fillers or scribe; our guides to scribe molding and end panels and fillers show how.
3. Locate the toilet centerline and measure from it to where the vanity's top will end. Keep at least 15 inches, 18 if you can.
4. Map the plumbing. Measure the drain and supply stubs from the floor and from the planned sink centerline. In a sink-and-drawer combo the drawers take one side, so the pipes have to land in the sink section.
5. Record everything on the wall: window sill height, outlets and switches, sconce boxes, the mirror, any heat register. With a comfort-height box and stone top you need about 36 inches of clear wall under the lowest of them.
6. Check the floor for level along the vanity wall and note any new tile or underlayment that will raise it.
7. Measure the path in. Hall width, stair turns and the bathroom door. An assembled 60-inch combo has to turn through that doorway.

Leveling a vanity is the same job as leveling a kitchen base, with less room to work. Our guide to leveling and shimming base cabinets walks through it.

Worked Examples: A 5×8 Bath, a 72-Inch Double and a Vessel Sink

Prices below are the cabinet-only figures shown in our store for Fabuwood Galaxy in any of its twelve standard-priced finishes, checked in September 2026. Tops, sinks, faucets and labor are extra.

A 5×8 hall bath with a tub across one end

The room is 60 by 96 inches. A 60-inch tub fills one short wall and projects 30 inches, which leaves 66 inches of long wall for the toilet and vanity. Put the toilet centerline 18 inches from the tub, then leave 18 inches from that centerline to the vanity's top. That uses 36 inches and leaves 30 for the vanity against the far wall.

A plain 30-inch sink base (VSB30-34, $461.50) centers the bowl 15 inches from the far wall. That meets the code minimum and misses NKBA's 20. A 30-inch sink-and-drawer combo (VSD30, $757.25) fixes it: order the drawer stack against the wall and the sink section toward the toilet, and the bowl center moves to roughly 20 inches off the wall. You also get three drawers. That handing has to be chosen at order time, because the combo can't be reversed after assembly. In front, a 22-inch top in a 60-inch-wide room leaves 38 inches clear.

A 72-inch double in a 75-inch alcove

With 1½-inch fillers at each wall, there are 72 inches of cabinet to plan. Three ways to build it:

The third build is the one we get asked to quote most often, because a big drawer stack in the middle looks good in photos. It is also the one a sharp plumbing inspector will question. The two-36 build is the cheapest and the most comfortable at the sinks; the 30-12-30 build is the one to choose if drawer storage is the priority.

A vessel sink on a comfort-height box

Someone wants a 5½-inch vessel on a 34½-inch box with a 3 cm quartz top: 34½ + 1¼ + 5½ = 41¼ inches to the rim. For a household of average height, that's too high. Swapping to a 4-inch low-profile vessel brings it to 39¾. Going undermount brings the working height to 35¾, the height the cabinet was designed around. Our advice: if the vessel is the point of the design, choose the bowl first and let it set the cabinet height, not the other way around.

Vanity Cabinet Only vs Vanity With a Top

Retail vanities are usually sold as a set: cabinet, top and sink together, sometimes with a faucet. Cabinet-grade vanities are usually sold as the cabinet only, and most of ours are, including the Fabuwood Galaxy and US Cabinet Depot boxes priced on this page. The exception is Fabuwood's Illume and Ovela lines, where we also sell matching vanity tops in 24- to 60-inch single and double-bowl widths, in Cloud and Moonstone plus quartz-look colors. We don't sell sinks or faucets for any of them. That split confuses people, so here is what each way gets you; our guide to vanity cabinet only vs with a top goes further into the trade-offs.

For a small hall bath where a stock top fits, a cabinet-grade box topped with a stock 22-inch-deep vanity top from a home center is a reasonable middle path. For anything wider than 48 inches, or a primary bath where the counter should match the kitchen, a fabricated top on separate cabinets is the better result. Order the cabinets first, choose the sink before the fabricator templates, and have the top measured after the cabinets are installed and leveled.

Beyond those Illume and Ovela vanity tops, we don't sell countertops. For materials, our guides to solid surface countertops, Formica and laminate and non-porous surfaces apply to a bathroom just as much as a kitchen. On the cabinet side, the drawer details are in what dovetail drawers tell you about quality and soft-close vs self-closing drawers.

Using a Kitchen Base Cabinet as a Vanity

Yes, you can, and designers do it on purpose. A kitchen base is 34½ inches tall, the same height as a comfort-height vanity box, so the counter lands at the same place. The difference is depth: 24 inches instead of 21. Whether that trade is worth it depends on the room.

The rule we give customers: if you have more than 30 inches of clear floor in front after a 25-inch top, a kitchen base is a legitimate upgrade in storage. If you don't, stay at 21 inches. And if you want the kitchen door and finish at vanity depth, ask about a depth reduction before you settle for a 24-inch box; Fabuwood lists one as a paid modification. Kitchen sink base widths and types are covered in our sink base cabinet guide, and the rest of the kitchen base family in types of base cabinets. Laundry rooms raise the same depth question, which our laundry room cabinet guide works through.

Accessible Vanity Heights and the ADA

The 2010 ADA Standards for Accessible Design set a hard number for sinks in the facilities they cover: the front of the higher of the rim or the counter surface can be no more than 34 inches above the finished floor (section 606.3). The ADA governs public accommodations and commercial facilities, not most private homes, but it is the number people plan to when they want a bath that works for a wheelchair user.

Height is the easy part. A 34½-inch box is already over 34 inches before the top, so an accessible vanity starts with a lowered box. The ones we can supply are Fabuwood's ADA vanity sink bases, 32½ inches tall, at 30, 33 and 36 inches wide; with a 1¼-inch top they finish at about 33¾ inches. They are 24 inches deep, so they project three inches further than a standard vanity and eat into the clear floor in front of them.

The harder part is the space underneath. NKBA's access recommendations call for a knee space about 36 inches wide and 27 inches high, and a 30-by-48-inch clear floor space in front of the sink, with exposed pipes insulated. A lowered cabinet with doors doesn't create knee space on its own; that usually means an open sink area, a shallow bowl and an offset drain. Our ADA cabinet heights and clearances guide covers the rules in full, and the lowered boxes are listed on the ADA base cabinets page.

What a Vanity Costs by Width

These are cabinet-only prices in our store for Fabuwood Galaxy's twelve standard-priced finishes, as displayed in September 2026. Desert Oak and Natural Oak run about 20 percent higher. Every SKU and configuration for the line is in our Fabuwood vanity guide; this is the short version by width.

Two things surprise people in that table. The 60-inch double-bowl combo costs less than the single-bowl version. And a 72-inch double built from two plain sink bases costs less than most 60-inch combos. Finished side panels, where an end of the vanity is exposed, are extra. Licensed trades buy 20 to 40 percent below these prices through Captivating Pro.

Installation is a separate line, and we don't do it. We ship nationwide; we do not install the cabinets you buy from us. For budgeting, HomeWyse's cost data for September 2026 puts basic labor to install a bathroom vanity at about $414 to $618 per vanity under favorable conditions, not counting plumbing or electrical changes. This Old House's 2026 replacement guide gives $665 to $3,300 in labor for a full replacement that includes removing the old vanity, disconnecting and reconnecting plumbing, and setting the new top, sink and faucet. The gap between those figures is mostly scope, so ask any installer to quote exactly which of those jobs is included. Our kitchen cabinet installation cost guide explains how trades price this work.

Frequently Asked Questions

What is the standard height of a bathroom vanity?

Older vanities finish at 30 to 32 inches. Comfort-height vanities finish at 34 to 36 inches with the top on, and that is now the norm in cabinet-grade lines. A 34½-inch box with a 1¼-inch stone top finishes at 35¾ inches.

Is a 36-inch vanity height too tall?

For most adults, no. It matches a kitchen counter. It can be too tall for children, for shorter adults, or when a vessel sink sits on top and adds another 4 to 6 inches to the rim.

How deep is a standard bathroom vanity?

The cabinet is 21 inches deep and the top is usually 22. Narrow-depth vanities around 18 inches exist in retail lines, but every vanity box in the spec books we order from is 21 inches deep, and we don't offer an 18 or 12-inch-deep vanity.

What size vanity fits a 5×8 bathroom?

Usually 30 inches, sometimes 36. With a 60-inch tub across one end, the toilet and its clearances use about 36 inches of the remaining 66-inch wall, which leaves 30 for the vanity.

How much space do you need between a toilet and a vanity?

The IRC requires at least 15 inches from the toilet's centerline to the nearest edge of the vanity, measured to the countertop, not the box. NKBA recommends 18 inches.

What is the smallest vanity for two sinks?

60 inches between walls, from 15 inches at each wall plus 30 inches between sink centers. NKBA's recommended spacing works out to about 76 inches, which is why 72 inches is the first double that feels comfortable.

Can I use a kitchen cabinet as a bathroom vanity?

Yes. A kitchen base is the same 34½-inch height as a comfort-height vanity but 24 inches deep instead of 21, so it needs a fabricated top and about three more inches of floor. In a roomy bath it gives you more storage and a finish that matches the kitchen.

Do vanity cabinets come with a sink and top?

Most cabinet-grade vanities, including most of ours, come as the cabinet only. For Fabuwood Illume and Ovela vanities we also sell matching tops from 24 to 60 inches wide; the sink and faucet are bought separately in every case, because we don't sell them. Retail all-in-one vanities include a top, usually in fixed widths.

Get a Vanity Layout Drawn for Your Wall

Send us the wall width, where the toilet and drain are, the sill height of any window, and a photo. We'll lay out the boxes, check the clearances in this guide against your room, pick the drawer side and send an itemized cabinet quote. Our free design service handles bathrooms as well as kitchens: a designer replies within one business day, with the 3D design and quote to follow within 24–48 hours.

Reach us through the contact page or call 609-900-3358. If you're sizing the kitchen at the same time, how cabinet widths step in 3 inches and how to read cabinet SKU codes will help you read the quote.