Vanity size and layout guide for your bathroom

Vanities and storage

Start with how the bathroom is used

Before you look at a single cabinet, think about the morning. Who is in the bathroom at the same time, what do they keep within reach, and where do they stand? A vanity that suits a guest bath for occasional visitors is a different object from one that serves two people getting ready for work.

Write down what has to live in the vanity. Hair tools, skin care, cleaning supplies, spare towels and medicine all want different kinds of space. Tall bottles need a deep drawer or a cabinet with a tall opening, while small items do better in shallow trays that keep them from sliding around.

It also helps to think about what you do not want to keep in the bathroom. Old products, duplicates and rarely used items take up space that a smaller, well organized vanity could handle comfortably. Editing before you design is often simpler and calmer than building more storage than you need.

This list drives every other choice in the guide. It tells you how much storage the vanity needs, whether you want drawers or doors, and whether a second sink would actually be used. It is also the kind of question we ask first when we help build a project direction, because layout follows use.

Width: how much room the wall really gives you

Width is set by the wall, the door swing and the fixtures beside the vanity. Measure the full length of the wall, then subtract the space needed for the toilet, the shower or tub and any door that opens into the room. What remains is the usable width, and it is often smaller than people expect.

A narrow vanity with a single sink suits a small guest bath or a powder room. A wider cabinet gives you counter space on both sides of the basin, which is the part most people miss when they have only a few inches around the sink. Counter space beside the basin is where you actually set things down.

Consider what sits at each end of the vanity wall. A toilet on one side and a shower on the other can pinch the usable width, and a door that swings toward the vanity can limit how far a drawer opens. Sketching these relationships on paper saves surprises later.

Do not choose a width only because a cabinet comes in that size. Custom and semi custom options let the vanity fit the wall exactly, with filler pieces or built in side storage where a stock cabinet would leave an awkward gap. Our page on vanities and custom storage explains how those choices work.

Depth and the walking space in front

Depth controls how much the vanity pushes into the room. Standard cabinets are deeper than slim or compact versions, and the difference is noticeable in a narrow bathroom. A deeper vanity gives more storage and a larger counter, while a shallower one leaves more room to walk, turn and open the door.

Stand where the vanity will be and picture a person at the sink. They need room to lean forward, to open a drawer fully and to stand without bumping a knee on the toilet or a shower door. Drawers in particular need space in front to pull out without hitting anything.

Depth also affects the counter. A deep top lets you tuck the faucet back and still have room in front of the basin, while a shallow top can force the faucet close to the front edge. Splashing and reaching both change with that small difference in distance.

In a small room, a shallow or wall hung vanity can help the floor feel open, since you can see the tile underneath. It stores less, so some homeowners pair it with a recessed niche or a tall shelf. Our small bathroom layout ideas go deeper on how to balance depth and walking space.

Height and comfort for the people who use it

Vanity height affects the back, the shoulders and the wrists, so it is worth thinking about the people who use it every day. Taller cabinets are often more comfortable for adults, since they reduce bending at the sink. Lower ones can feel better for children or for anyone who prefers to sit or work at a lower counter.

The sink style changes the effective height. A vessel sink sits on top of the counter and raises the rim, so the cabinet underneath is often built lower to compensate. An undermount basin sits below the counter surface and keeps the top flat and easy to wipe.

Tall family members and young children often share a bathroom, and a step stool at the sink is a simple answer in the second case. If you expect the household to change, choose a height that works for most people and add flexibility through stools, adjustable mirrors or a second sink at a different level.

If more than one person with different heights shares the bathroom, you can pick a comfortable middle height or plan a second sink at a different level. For households planning ahead, a comfortable height and open space under the sink can be part of the thinking described on our accessibility and aging in place page.

• Measure the height of the people who use the sink most often.
• Remember that vessel sinks raise the rim above the counter.
• Make sure faucets and handles are easy to reach from where you stand.
• Leave room for a mirror and light above the finished counter height.

Drawers or doors: what fits your storage

Drawers let you see everything at once. You open the front and look down into the space, so nothing gets lost at the back. They are ideal for small items, tools and daily products. The trade is the plumbing: the drain and supply lines under the sink mean the top drawer usually has to be cut around them.

Doors give you a single open cavity, which is useful for tall bottles, cleaning supplies and baskets. Everything is reached by opening the door and crouching, so items at the back are harder to get to. Pull out trays inside a door cabinet can solve that problem and make the space work more like a drawer.

Drawer hardware is worth a look. Soft closing slides, full extension and sturdy sides make a drawer feel solid for years, while thin, poor slides loosen. Ask what kind of drawer box and slide the cabinet uses, and open one in person if you can.

Many vanities combine both: doors under the sink with drawers on the sides, or a top drawer shaped around the drain. If storage is a priority, ask how the interior is organized. We often suggest planning inserts and dividers while the cabinet is being designed, because adding them afterward rarely works as well.

One sink or two

Two sinks sound ideal, but they do not always help. A double vanity needs a lot of wall, and two small basins can leave you with very little counter space between and beside them. If the bathroom is not wide enough, a single large sink with generous counter often works better in daily life.

Two sinks make sense when two people regularly use the room at the same time and the wall is wide enough to give each person real elbow room. In a primary bathroom with a long wall, two basins with a shared counter in the middle is a comfortable and familiar arrangement.

Also think about cleaning around the basins. A wide counter with a smooth top and a simple backsplash is easier to wipe than one with many corners. Two sinks double the number of drains and faucets to clean, which matters if you want the bathroom to stay easy to maintain.

Another option is one wide trough sink with two faucets, which saves space and keeps cleaning simple. For a primary suite where this decision is central, our overview of primary bathroom renovations shows how the vanity fits with the shower, the tub and the rest of the room.

Plumbing locations and what they mean for the layout

The location of the supply lines and drain in the wall is one of the biggest influences on a vanity layout. Keeping the sink where the plumbing already is can keep a project simpler. Moving it is possible, but it affects the floor, the wall and the work needed behind the finished surfaces.

The plumbing also shapes the cabinet. A sink centered over the drain needs a cabinet that is open in that area, while a sink offset to one side allows a full bank of drawers on the other. This is a layout question you can answer on paper before any cabinet is ordered.

Take photos of the wall before demolition and measure the distance from the corner to the drain and to each supply line. These simple notes help everyone involved compare the existing plumbing to the new layout and discuss options before decisions are fixed.

Plumbing work should be done by qualified professionals and checked against the requirements of your city. Rules vary by city and by building, so ask your city building department what applies to your project, and ask your association first if you live in a condo or a managed community.

Mirrors, medicine cabinets and wall storage

A mirror should be centered over the sink, or over each sink if there are two, and it should be wide enough to feel balanced against the vanity. A mirror that is too small makes the whole wall look unfinished, while one that is too large can crowd the lights and the wall space around it.

Recessed medicine cabinets with mirrored doors add storage without taking up counter space. They need a wall cavity clear of obstructions, so plan them early. Wall mounted shelves and open niches beside the mirror can hold daily items and soften the look of a larger wall.

Think also about how the mirror changes with the vanity top. Backsplash height, wall tile that runs behind the vanity and the finish of the wall above the counter all affect where the bottom edge of the mirror should land. Bring those details together on one drawing.

Think about how the mirror and the lighting work together. Side lights give an even glow on a face, while a single fixture above can cast shadows. Our guide to bathroom lighting layers explains how to place light around the mirror so that the face is evenly lit.

Outlets, switches and safe placement

Outlets near a sink need to be planned, not squeezed in at the end. Think about what you plug in: a toothbrush, a hair dryer, a razor, a small lamp. Placing an outlet inside the vanity or in a side panel can keep cords off the counter and the room looking clean.

Outlets in a bathroom use ground fault protection, in general terms a device that cuts power right away if it senses a problem near water. Where and how they are installed is work for a qualified electrician, following the rules of your city. For a homeowner, the planning job is to say where you need power.

Grouping outlets and switches in a tidy arrangement also makes the finished wall easier on the eye. Placing devices at consistent heights and in line with one another can make a plain wall look intentional, even when the function behind it is simple.

Switches should be easy to find from the door, with lights and the exhaust fan on separate controls if possible. Place them so that a wet hand does not need to reach across a sink. Good outlet and switch planning is one of the least visible parts of a remodel and one of the most appreciated.

Clearances that make the vanity comfortable

Clearance is the open space around a fixture. In front of the vanity you need enough room to stand, bend and open drawers. Beside the sink you need space for your elbows. Between the toilet and the vanity there should be enough distance that sitting down does not feel crowded.

Requirements for minimum clearances can vary by city, so rather than assuming a number, ask your city building department what applies to your bathroom. Your remodeler can also lay out the plan on the floor with painter's tape so you can walk through the space before anything is built.

Remember that a vanity layout is rarely final until the surrounding surfaces are chosen. Wall tile, floor tile and paint colors change the way cabinet finishes look. Keep samples together in the actual room light before you commit to a cabinet color or a counter material.

This simple test is one of the most useful things you can do. Mark the vanity, the toilet and the door swing on the floor, then act out a normal morning. If something feels tight, it will feel tighter every day after the cabinet is in. Our bathroom remodel planning checklist includes this kind of walk through.

Putting the vanity decisions together

Once you know the width, depth, height, storage type and sink count, the rest of the room falls into place around them. Choose the top material and the faucet next, then the mirror and light. Finally choose the hardware, because small pulls and knobs are the part of the cabinet your hands touch the most.

If you are remodeling a full room, the vanity should be planned together with the shower, the floor and the lighting. A vanity that looks great in a showroom can feel wrong beside a particular tile, so bring samples and look at them together. Our page on complete bathroom remodeling describes how those pieces come together.

When you are ready to talk about your bathroom, request an estimate and tell us how the room is used. We will help you shape the layout, the storage and the details, step by step, before construction begins.

Good to know

Common questions