Bathroom Vanity Size Guide, Fitting the Right Cabinet to Your Space

What size bathroom vanity do I need?

For most Indian bathrooms, a vanity between 450mm and 600mm (18 to 24 inches) wide works for a single basin in a compact space, while 750mm to 900mm (30 to 36 inches) is the comfortable standard for a main bathroom. Depth usually falls between 450mm and 500mm (18 to 20 inches), and counter height sits at 800mm to 850mm (32 to 34 inches) from the floor. If you are fitting a 5x8 foot bathroom, stay under 600mm width unless the basin wall is completely clear of doors and shower areas. Double sink vanities need at least 1500mm (60 inches), so they only make sense in larger family bathrooms. Always measure your actual wall space before ordering, since even 50mm can be the difference between a comfortable fit and a cabinet that blocks the door.

What are the standard bathroom vanity dimensions?

Indian sanitaryware brands, including Bassino Impex, list sizes in millimetres first because that is how plumbing and tiling measurements work here. Centimetres and inches are useful for a quick mental picture, so here they are together.

Widths commonly available run in steps, 400mm, 450mm, 500mm, 600mm, 750mm, 900mm, 1200mm and 1500mm. In centimetres that is 40cm, 45cm, 50cm, 60cm, 75cm, 90cm, 120cm and 150cm. In inches, roughly 15.7, 17.7, 19.7, 23.6, 29.5, 35.4, 47.2 and 59.1.

Depth is more standardized. Most wall mounted and floor standing vanities sit at 450mm to 500mm (17.7 to 19.7 inches) deep. Slimmer 300mm to 350mm (11.8 to 13.8 inches) options exist for very tight bathrooms, though these usually pair with smaller basins and less counter space.

Height is fairly fixed too. Standard counter height for an adult user is 800mm to 850mm (31.5 to 33.5 inches) from the finished floor level. Wall hung vanities give you some flexibility here, since installers can raise or lower them slightly to suit the household.

These numbers are a starting point, not a rulebook. A tall household might prefer 850mm height, while a bathroom shared with children sometimes drops to 780mm. What matters is that width, depth and height all work together with your basin size and the door swing in the room.

What vanity size fits a 5x8 or 6x8 Indian bathroom?

This is the part most guides skip, and it is usually the actual question on your mind. Indian bathrooms are rarely spacious. A 5x8 foot bathroom, which is about 1.5m by 2.4m, has to fit a WC, a shower or bathing area, and a wash basin, often along the same wall.

In a 5x8 layout, a vanity wider than 600mm will almost always eat into door clearance or shower space. A 450mm to 500mm wide, single basin vanity is usually the safest choice, especially if it is wall mounted, since you get storage without the cabinet legs narrowing the walking path. If your basin wall is at least 900mm long and free of any door swing, you can stretch to a 600mm vanity, but measure the door arc first, not just the wall length.

A 6x8 foot bathroom, close to 1.8m by 2.4m, gives you more room to work with. Here, a 600mm to 750mm vanity is comfortable, and some layouts can even take 900mm if the basin wall is separate from the WC and shower zone. This size also allows a slightly deeper 500mm cabinet, which gives more usable counter and storage.

The general rule for Indian bathrooms, whichever size you have, is to leave at least 600mm of clear floor space in front of the vanity for standing and bending down to the basin. If that clearance does not exist after adding the cabinet, the vanity is too big for the room, regardless of what the size chart suggests.

Bathroom vanity size chart

Should I choose a single sink or double sink vanity?

A single sink vanity is the right choice for almost every Indian bathroom under 40 square feet, which covers most 5x8 and 6x8 layouts. It uses less width, leaves more floor space, and still gives you a full counter and storage below.

A double sink vanity only earns its space in a larger bathroom, generally 1500mm of wall length or more, shared by two people who get ready around the same time. Think master bathrooms attached to a bedroom, or a family bathroom used by two adults on a tight morning schedule. If your household does not have that daily overlap, a single wide basin with a longer counter usually serves better than splitting the space into two smaller basins.

One point worth remembering, a double sink vanity does not need two separate basin widths added together. Most double vanities work well at 1500mm to 1800mm total, with the two basins spaced so elbows do not collide, roughly 900mm centre to centre.

How do I measure for a bathroom vanity?

Measuring correctly before you order saves a return trip and a wasted cabinet. Follow these steps in order.

1. Measure wall to wall width. Measure the full length of the wall where the vanity will sit, from corner to corner or from the WC to the door frame, whichever comes first. Note the smallest width along that stretch, since walls are rarely perfectly straight.

2. Check door swing clearance. Open the bathroom door fully and measure how far it swings into the room. Your vanity, including any handles or drawer pulls, must sit outside that arc. This single step is where most sizing mistakes happen.

3. Locate the plumbing centreline. Find the centre of your existing water inlet and drain outlet, usually marked by the current basin position or the rough in pipe. Your new vanity and basin need to be centred on this line, or your plumber will need to shift the pipework, which adds cost.

4. Measure depth from the wall. Measure from the wall to where you want the front edge of the vanity to end. Leave at least 600mm of clear floor space beyond that point for a person to stand and use the basin comfortably.

5. Confirm the height that suits your household. Measure from the floor to a height that feels comfortable when you stand upright with your arms relaxed, usually somewhere between 800mm and 850mm. Adjust slightly if the bathroom is mainly used by children or by someone with mobility needs.

6. Recheck against the included basin. Every Bassino vanity set, including the compact bottom-cabinet models, comes complete with a matching basin and mirror as standard; we do not sell a drawer-only cabinet without a basin. Once you have a width in mind, confirm the basin that comes with your chosen vanity fits the top with at least 25mm to 50mm of counter edge remaining on each side, so it does not overhang.

What sizing mistakes do people make most often?

The most common mistake is measuring the wall but forgetting the door swing, which leads to a vanity that blocks the door from opening fully. Always check the open door arc, not just the flat wall length.

Another frequent error is choosing vanity width based on the showroom display rather than the actual room. A 900mm vanity looks completely different in a large showroom than it does against a 5x8 bathroom wall. Bring your own measurements, not just a general sense of what looked good.

People also underestimate depth. A 500mm deep vanity in a narrow bathroom can leave barely enough space to pass by, especially if a door opens inward on the same wall. When in doubt, choose a shallower 450mm depth over a deeper one in a tight room.

Ignoring the plumbing centreline is another costly mistake. Ordering a vanity width without checking where your inlet and outlet pipes actually sit often means either moving the plumbing or accepting an off centre basin, neither of which looks good once tiled and finished.

Finally, many buyers assume a wall mounted vanity is always the space saving choice. It does open up the floor for cleaning and can visually enlarge a small bathroom, but it still needs roughly the same width and depth as an equivalent standing cabinet. The real space saving comes from choosing a narrower cabinet, not from the mounting style alone, which is exactly why Bassino's wall mount vanity sets are worth a closer look, since each set pairs the cabinet with a matching basin and mirror in one wall hung unit while keeping the floor clear.

Frequently asked questions

What size bathroom vanity is right for a small bathroom?

A small bathroom generally suits a vanity between 400mm and 600mm wide, with a depth of 300mm to 450mm. Wall mounted styles are a good fit here since they keep the floor open and make the room feel less cramped.

What is the standard wash basin cabinet size in India?

The most common wash basin cabinet size sold in India is 600mm wide by 450mm to 500mm deep, with a counter height of around 800mm to 850mm. Smaller 450mm wide cabinets are also widely available for compact bathrooms.

How do I choose a vanity size for a 5x8 bathroom?

For a 5x8 foot bathroom, choose a vanity between 450mm and 600mm wide, and confirm the door swing does not overlap the cabinet before finalising the size. A wall mounted single basin unit usually works best in this layout.

What is the ideal wall mounted vanity size for a small bathroom?

A wall mounted vanity between 450mm and 600mm wide, with a depth of 400mm to 450mm, suits most small bathrooms. Mounting height is usually set between 800mm and 820mm from the floor, though this can be adjusted slightly for the household.

Can I fit a double sink vanity in an Indian bathroom?

A double sink vanity needs at least 1500mm of wall length, so it only fits in larger bathrooms, typically master bathrooms or shared family bathrooms above 40 square feet. In a standard 5x8 or 6x8 bathroom, a single wide basin is a better use of the available width.

Does vanity depth matter as much as width?

Yes, depth affects walking space just as much as width affects wall coverage. In a narrow bathroom, a vanity that is too deep can block the path to the door or shower, so a shallower 450mm option is often the safer choice.

What height should a bathroom vanity be?

Standard vanity height in India is 800mm to 850mm from the finished floor, which suits most adult users. Households with children or elderly members sometimes choose a slightly lower height, around 780mm to 800mm, for easier daily use.

Finding the right fit

Getting the vanity size right is mostly about honest measuring, not about picking the biggest cabinet that catches your eye. Once you know your wall width, door clearance and plumbing centreline, the right size usually narrows itself down to one or two sensible options. Bassino makes vanity cabinets and wash basin cabinets across the widths covered in this guide, from compact 450mm units for tight bathrooms to wider double sink ranges for larger spaces, all listed in millimetres so you can match them directly to your own measurements. Do take a look through the range on our website before you place your order, so you can compare sizes against the numbers you have just measured at home.