How to Choose a Bathroom Vanity Unit
Choosing a bathroom vanity unit is much easier when you make the decisions in the right order.
With so many sizes, finishes, installation types and storage layouts available, it can be difficult to know where to start. The best approach is not to begin with the colour or the first design you like. Start with how the unit needs to fit, then narrow the choice from there.
A good vanity unit should suit your wall space, work with your plumbing, give you the right amount of storage and match the style of your bathroom. This guide takes you through the key decisions step by step.
What Is a Bathroom Vanity Unit?
A bathroom vanity unit combines a basin with storage underneath.
The basin may be inset, integrated or placed on top as a countertop basin. The cabinet below gives you space for toiletries, cleaning products and everyday essentials, while helping to hide pipework for a neater finish.
You may also see vanity units called basin cabinets. The terms are often used to describe the same thing: a basin and storage cabinet in one piece of bathroom furniture.
Vanity units sit within the wider bathroom furniture category, alongside mirror cabinets, tall units, wall cabinets and storage units.
Step 1: Choose the Installation Type
The first decision is how the vanity will be installed. This affects the look of the room, the storage available and what kind of wall or floor support you need.
Wall-Hung Vanity Units
A wall-hung vanity unit is fixed to the wall and raised off the floor.
This creates a lighter, more modern look and helps small bathrooms feel more open. Because the floor remains visible underneath, wall-hung units can also make cleaning easier.
They are a strong choice for cloakrooms, ensuites and modern bathrooms. However, they need to be fitted to a suitable wall with the correct fixings. Stud walls may require extra reinforcement, so check with your installer before ordering.
Freestanding Vanity Units
A freestanding vanity unit sits on the floor and has a more furniture-like feel.
It can be a good choice for traditional bathrooms, country-style schemes and rooms where you want the vanity to feel more substantial. Freestanding units are often easier to install than wall-hung designs because the floor supports the weight.
They can also help hide pipework neatly inside the cabinet.
Floorstanding Vanity Units
A floorstanding vanity unit sits fully on the floor, often with a solid base or plinth.
This type of vanity is useful when storage is a priority. Because it uses the full height beneath the basin, it can offer generous drawers, cupboards or mixed storage.
Floorstanding units work well in family bathrooms, larger bathrooms and spaces where you want a robust, grounded look.
Step 2: Choose the Right Size
Once you know the installation type, measure the space carefully.
You need to check the width of the wall, the depth available, the door swing, the toilet position, nearby radiators and the plumbing. A vanity that fits the wall may still be wrong if it blocks movement or prevents drawers and doors from opening properly.
Compact Vanity Units
Compact vanity units usually sit around 300mm to 500mm wide.
They are designed for cloakrooms, downstairs WCs and small ensuites. In these spaces, projection is just as important as width. A slim-depth unit can help keep the room usable and prevent the basin from interfering with the door swing.
Standard Vanity Units
Most family bathrooms suit a vanity unit between 600mm and 800mm wide.
This gives you a practical basin size, useful storage and a balanced footprint for everyday use. A 700mm or 800mm unit can give a little more storage where the wall space allows.
Large Vanity Units
Larger bathrooms may suit vanity units from around 900mm to 1200mm wide.
These units provide more storage, more surface space and a stronger focal point. They are a good fit for master bathrooms, larger ensuites and family bathrooms with more generous layouts.
Double Basin Vanity Units
Double basin vanity units usually need at least 1200mm of wall space, with 1400mm or more being more comfortable.
Two basins are useful if two people regularly use the bathroom at the same time. If they do not, a wide single vanity may offer better storage and more usable counter space.
Step 3: Decide Between Single and Double Basin
For most bathrooms, a single basin vanity unit is the most practical choice.
A single basin gives you more flexible storage and often more counter space than a double basin unit of the same width. It is usually the right option for cloakrooms, small ensuites and standard family bathrooms.
A double basin vanity is worth considering if you have enough wall space and two people regularly need the basin area at the same time. It can work well in master ensuites and larger shared bathrooms.
Avoid squeezing two basins into a space that is too narrow. Two cramped basins can be less useful than one comfortable basin with better storage.
Step 4: Choose the Style
Once you know the installation type and size, think about the style of the vanity.
The vanity is often one of the most visible pieces in the bathroom, so it should work with the rest of the room and the wider home.
Modern Vanity Units
Modern vanity units usually have clean lines, smooth fronts and minimal handles.
They often come in finishes such as matt white, gloss white, grey, anthracite, black and wood effect. Wall-hung modern designs are popular because they create a sleek, floating look.
Modern vanities suit contemporary homes, new-builds and bathrooms where you want a clean, uncluttered finish.
Traditional Vanity Units
Traditional vanity units usually have panelled doors, visible handles and softer finishes.
Colours such as cream, off-white, sage, dove grey, navy and warm wood tones work well in traditional bathrooms. Freestanding and floorstanding designs are often a natural fit for this style.
Traditional vanities suit period homes, country-style interiors and bathrooms where you want a warmer, more classic feel.
Step 5: Choose the Material and Finish
The material and finish affect both the look and the lifespan of the vanity unit.
Painted Vanity Units
Painted vanity units are a popular choice across both modern and traditional bathrooms.
They can come in white, grey, navy, sage, anthracite and many other finishes. A good painted finish should feel smooth and be suitable for bathroom conditions.
Wood and Oak Vanity Units
Wood and wood-effect vanity units add warmth to the bathroom.
Oak, walnut and other natural finishes can soften the look of tiles and white ceramics. They can work in both modern and traditional schemes, depending on the door style, shape and handles.
Marble and Stone-Effect Vanity Units
Some vanity units include marble, stone-effect or composite tops.
These can give the basin area a more premium feel. They work well with both traditional freestanding furniture and modern bathrooms where you want the vanity to become a feature.
Step 6: Think About Storage
The best vanity unit is not just the one that fits. It also needs to store the right things.
Drawer Storage
Drawers are useful for smaller everyday items such as toothbrushes, skincare, makeup, razors and grooming products.
They make it easier to see what you have and reach items quickly. Drawer dividers can help keep everything organised.
Cupboard Storage
Cupboards are better for taller bottles, cleaning products, spare toilet rolls and bulkier supplies.
They are also useful if you want more flexible internal space or if you are choosing a more traditional vanity style.
Mixed Storage
Many vanity units combine drawers and cupboards.
This can be a practical choice for family bathrooms because it gives you easy access to daily items while still providing space for taller or bulkier products.
Step 7: Decide Between Stock and Bespoke
Most bathrooms can be fitted with a stock vanity unit.
Ready-made vanity units are available in a wide range of sizes, styles, finishes and installation types. They are usually quicker to order and more cost-effective than bespoke furniture.
Bespoke or made-to-measure vanity units are worth considering when a standard size does not work. This might be because of an awkward wall width, sloped ceiling, chimney breast, boxed pipework or a very tight cloakroom layout.
Bespoke can also be useful if you want a very specific finish, colour, storage layout or UK-made piece of furniture.
For standard bathrooms, stock is usually the best option. For awkward spaces, bespoke may be the better long-term fit.
Plan the Vanity with the Rest of the Bathroom
A vanity unit should not be chosen on its own.
Think about the wall as a whole. Will there be a mirror or mirror cabinet above the vanity? Will a tall unit sit nearby? Do the handles match your taps and shower? Does the finish coordinate with other storage in the room?
Matching the mirror cabinet width to the vanity width can create a cleaner look. Choosing a vanity, mirror cabinet and tall unit from the same range can help the room feel more planned.
It is also worth checking the plumbing before ordering. Make sure the waste pipe and water supply positions will work with the unit you choose.
Bathroom Vanity Unit FAQs
What is the difference between a vanity unit and a basin cabinet?
They usually mean the same thing. Both describe a basin set into or onto a storage cabinet, giving you washing space and concealed storage in one bathroom furniture unit.
Should I choose wall-hung or freestanding for a small bathroom?
Wall-hung is usually best for small bathrooms because it keeps the floor visible and helps the room feel more open. Freestanding can still work if the wall is not suitable for fixing or if you prefer a more traditional look.
Should I choose a single or double basin?
Most bathrooms suit a single basin vanity. A double basin is useful if you have enough wall space and two people regularly use the basin at the same time. For double basins, 1400mm or wider is usually more comfortable.
What size vanity unit fits a standard family bathroom?
A 600mm to 800mm vanity unit suits most standard family bathrooms. Always measure the wall space, depth, door swing and plumbing position before ordering.
When should I consider a bespoke vanity unit?
Consider bespoke if no standard size fits properly, if the bathroom has awkward features such as a sloped ceiling or chimney breast, or if you need an exact colour, finish or storage layout.
Do vanity units usually come with a basin?
Many vanity units include a basin, but not all do. Some are sold as cabinet-only designs for use with a separate countertop basin. Always check the product details before buying.
Choose the Right Bathroom Vanity Unit at Plumbworld
Choosing a vanity unit is easier when you follow the right order: installation type, size, basin layout, style, material, storage and stock or bespoke.
Start by measuring your space, then decide whether wall-hung, freestanding or floorstanding works best. From there, choose the size, finish and storage layout that suits your bathroom and daily routine.
Browse Plumbworld’s bathroom vanity units, wall-hung vanity units, freestanding vanity units, floorstanding vanity units, cloakroom vanity units, double basin vanity units and bespoke UK-made vanity units to find the right fit for your space.