Furnishing a Small Bathroom: 5 Essential Things to Know

LAST UPDATE: JUNE 2026

Furnishing a small bathroom can seem like a challenging task. Little space, many things to fit, and the desire to have a space that is also pleasant to live in. 

The good news is that a small space is not a space without possibilities, but a space that requires more precise and conscious choices. Often, precisely because designing it is a challenge, the final result is even more satisfying.

In this guide, you’ll find everything you need to transform a small bathroom into a functional, tidy space with a clear identity.

Where to start: the minimum measurements for a small bathroom

Before buying anything, it’s worth having the numbers clear.
"Small bathroom" covers a broad category: from two square meters for service bathrooms up to five or six square meters. Choices vary greatly depending on the size and shape of the bathroom, and knowing the minimum reference measurements avoids costly mistakes.

The number one mistake when furnishing a small bathroom independently is underestimating measurements. Measure first, then choose (in this order).

1. Originality and personality: the focal point that captures attention

The first step for the aesthetic success of a small bathroom is to add originality to the space. A limited space doesn’t need to give up character; often, even a single bold choice is enough to completely transform it.

The secret is the focal point: an element that immediately catches the eye of anyone entering. It can be a wall with a bold color, wallpaper with a daring pattern, or a covering with particular designs.
To be magnetic, this element must be well integrated into the environment but in contrast, either in proportion or color, with everything else.

If every detail is intentional, limited dimensions are no longer an issue.

For color, the 60-30-10 rule applies: 60% of the space has a dominant color (covering, walls), 30% a secondary tone (vanity, curtains), and 10% is the accent color: the one that surprises.

Painted metal accessories are perfect for this role: in colors like our Light Teal, Antique Pink, or Cornflower Blue, they become the detail that makes a difference without weighing down the space.

2. Essential furnishings: proportional and functional

In a small bathroom, every centimeter has a purpose. Furniture choices must start with essential elements (sink, sanitary fixtures, shower) and proceed with a clear criterion: nothing that doesn’t earn (even aesthetically) the space it occupies.

• Sink: choose a compact but practical one. Freestanding sinks are often very attractive, but make sure you have space elsewhere for towels, products, and accessories.
  If, instead, you prefer a vanity with drawers or doors, suspended solutions give the impression of a more open space.
  
  
• Sanitary fixtures: wall-mounted models are almost always the best choice: they make the bathroom visually airier. There are more compact models that, if necessary, save a few centimeters.
  
  
• Shower: in a small bathroom with a shower, a corner cabin or wall-mounted enclosure is the most efficient solution. It occupies between 0.5 and 0.8 sqm compared to 1.1 sqm for a standard bathtub.

You can also save space inside the shower. 
A multi-shelf shower caddy that hooks onto the shower enclosure without drilling the walls solves the problem of space for shampoo and products. 

→ Discover Hiro accessories for the shower area

3. Functional layout: clear the passage

The arrangement of elements is where you win or lose the game.
A poorly arranged small bathroom feels even narrower than it is. A well-designed one feels livable and makes you forget the size.

Basic rule: sanitary fixtures should never be the first thing you see when entering.

For vertical storage, a column shelf, which takes up very little floor space and offers multiple levels of shelving, is an extremely effective solution in bathrooms up to five square meters.

Small rectangular bathroom: how to approach it?

The rectangular bathroom is the most common layout in Italian homes and, if well managed, is also one of the most functional.

In these cases, it is best to distribute the elements along one or both long sides, leaving the central area free for movement.
For example: shower, toilet, and bidet on one wall, sink on the other, or sink and all sanitary fixtures in sequence along the long wall, with the shower against the short back wall.

A multifunctional floor stand holding a roll and brush in the corner solves two accessory needs at once without adding bulk.

Small bathroom with washing machine: common problems and how to solve them.

Fitting a washing machine in a small bathroom is possible, but requires planning.
The most common solutions are three: 

• hide it under the sink countertop,
• position it in the corner in a custom-made cabinet,
• if space allows, place it in a closet created right from the bathroom.
  
  

4. The illusion of space: mirrors, light, and coverings

No other element affects the perception of space as much as the mirror. A large mirror above the sink reflects natural light, visually multiplies depth, and, if chosen carefully, becomes the focal point of the entire room.

For those who need extra storage space without adding furniture, a mirror with an internal compartment to keep personal care products and anything else you want to hide from view is the smartest solution in a bathroom without cabinets.

Light: often the most overlooked detail

Good bathroom lighting is not improvised. A backlit mirror alone is not enough: a complementary light source is needed to illuminate the face without creating shadows. The light temperature should not exceed 4000K (above that, it creates a hospital-like effect), and the CRI value of the bulbs should always be above 90 for faithful color rendering. You can find this information on the packaging of every bulb.

5. The details that complete the look: coordinated accessories and home styling

This is where a small bathroom becomes a beautiful bathroom. The details define the character of the space and are the last things noticed, but felt immediately.

The sink area tends to accumulate visual clutter: liquid soap, a glass, cotton swabs, lotions. The solution is to organize that area with accessories that have color and shape coherence, designed to be on display, not hidden. A neat tray with a dispenser, toothbrush holder, and small organizer transforms the sink countertop from chaos into a composition.

For towel racks, wall-mounted solutions are always preferable in small bathrooms: they free up floor space and keep everything tidy. A minimal wall-mounted towel rack takes up zero space, installs in minutes, and, in the right color, becomes part of the design, not just an ordinary accessory.

Coordinated towels and rugs with the bathroom palette gain intentionality and meaning, with some color accents to add vitality and create contrast. 

Plants like ferns, pothos, and tillandsia love the bathroom humidity and bring a touch of life even to the smallest corner.

In the most successful small bathrooms, the secret is always the same: few elements, carefully chosen.

→ Explore the entire Hiro bathroom collection

Frequently asked questions about small bathrooms

Is a shower or bathtub better in a small bathroom? In almost all cases, the shower. A standard bathtub takes up 1.6 sqm compared to 0.5 sqm for a corner shower. There are 120 cm bathtubs, but they still require a bathroom of at least 5-6 sqm to be used comfortably.

How do I make a small bathroom look bigger? Large mirror over the sink, light colors on walls and floor, large format coverings, wall-mounted solutions instead of floor-standing furniture, diffuse lighting without shadows.

Can I use dark colors in a small bathroom? Yes. It’s not necessary that the priority is to make the space look bigger.
A bathroom with great character where every detail is cared for still makes the size secondary. If you’re not afraid to dare and the color scheme is well thought out, you can also opt for a total dark look, semi-dark and bold colors, or unexpected color mixes.

The reminder: how to furnish a small bathroom in 5 steps

Furnishing a small bathroom requires careful planning but is not complicated. The starting point is always the same: measure before buying. Then:

1. Choose a focal point: a wall, a covering, an element that gives character to the entire space.
   
   
2. Focus on essential furniture: wall-hung toilet, compact sink, corner shower enclosure. Nothing more than what is needed.
   
   
3. Go vertical: column shelves, floating shelves, wall accessories. The floor is precious: free it up.
   
   
4. Use the mirror: large, well positioned. It is the most effective tool to expand the perception of space.
   
   
5. Pay attention to details: coordinated accessories, tidy sink area, a plant in the corner. These are the last things noticed but the ones that remain.

By following these five points, even a 3 sqm bathroom can become a space you want to show off to guests.

→ Discover all Hiro design options for your small bathroom