Smart Storage Ideas for Small Bathrooms: Space-Saving Fittings

June 22, 2026

Furnishing a small bathroom requires furniture with a reduced depth of under 30 cm, wall-hung installations to visually enlarge the floor area, and the use of space-saving hardware technology.

Fitting out a small bathroom is like packing a toolbox – every single element needs its precisely assigned spot, otherwise the lid will jam in the end. In many flats, the bathroom measures barely four or five square metres. Sloping ceilings, awkwardly positioned radiators, or narrow alcoves often make standard units difficult to install. Creating storage space here requires precise planning, the correct dimensions, and clever methods when assembling furniture.

This guide demonstrates how DIY enthusiasts can achieve maximum functionality even in the tightest spaces, what to look for when choosing materials, and how to fix furniture securely to the wall.

Dimensions and Zones: The Foundation of Bathroom Planning

Before the first wall plug goes into the wall, accurate measuring is essential. A small bathroom does not forgive planning mistakes. Furniture must not restrict freedom of movement. The following guidelines apply as minimum clearances when planning:

In front of the washbasin: 60 cm to 75 cm clearance.
In front of the toilet: 60 cm clearance.
Between individual sanitary items: 20 cm.

Classic bathroom furniture often has a depth of 40 cm to 60 cm. In a narrow, corridor-style bathroom, these dimensions obstruct the walkway. The solution is furniture with a reduced depth of 15 cm to 30 cm. The interior space remains perfectly adequate for toiletries, cleaning supplies, or rolled-up towels.

Clever Furniture Types and Repurposing

A piece of furniture does not always have to be explicitly labelled as a bathroom cabinet to serve effectively in the bathroom. The crucial factors are the dimensions and the material.

The Vanity Unit

The space beneath the washbasin is the most vital storage area in a small bathroom. A base cabinet conceals the pipework and utilises the unused area down to the floor. When selecting the drawer system, paying attention to the installed runner mechanism is worthwhile. A full-extension runner allows the drawer to be pulled 100% out of the cabinet. In tight bathrooms, this offers a huge advantage over a single-extension runner, as items at the very back of the drawer can be reached easily from above without bending down deeply.

Wall-Hung Cabinets and Shelving

Clear floor space is the most effective visual technique for making a room appear larger. When floor tiles remain visible right up to the wall, the bathroom feels much less cramped. Wall-hung cabinets require solid installation, particularly when bearing heavy items such as laundry detergent. For internal shelving, the System 32 arrangement is ideal. This standardised line of holes spaced at 32 mm intervals allows shelf boards to be adjusted flexibly to the height of shampoo bottles or cleaning agents.

Repurposing Furniture: Utilising Tilt-Out Compartments

One of the most effective methods for extremely narrow bathrooms is using hallway furniture fittings. Space-saving shoe cabinets often have a depth of just 15 cm to 25 cm. The integrated drop-front tilt mechanisms are outstanding for storing rolled towels or tall bottles. Because these units sit extremely flat against the wall, they frequently fit behind the opened bathroom door – an area that otherwise remains completely unused.

Shallow cabinets are also ideal for organising cleaning products or toilet rolls. If there is only 20 cm of space in an alcove next to the shower, standard bathroom ranges often offer no solution. In these spaces, space-saving shoe cabinets bridge the gap perfectly.

Materials: Moisture Protection in the Bathroom

The bathroom is a damp environment. Temperature fluctuations and high humidity place high demands on materials. Solid wood requires regular maintenance with hard wax oil. For DIYers, furniture made of MDF (medium-density fibreboard) or classic chipboard is often the more practical choice, provided it is properly coated.

A melamine resin coating makes the surface water-repellent and scratch-resistant. Edge banding quality is equally crucial. Edges must be sealed with thick ABS edging (often 1 mm or 2 mm thick) and waterproof PU adhesive. If water penetrates the chipboard through an improperly finished edge, the material will swell irreversibly.

Fittings for Tight Spaces: Doors and Flaps

In a compact bathroom, a wide-swinging cabinet door can easily hit the shower enclosure or towel radiator. Choosing the right hinges and opening mechanisms is therefore essential.

Adjusting hinges: A standard concealed cup hinge usually has an opening angle of 110°. If the cabinet hangs directly in a corner, the door may strike the tiles upon opening. Opening angle restrictors help here by reducing the angle to 85° or 90°.
Mounting types: If the cabinet needs to sit flush inside a recess, an inset mounting is chosen, where the door sits entirely within the cabinet sides. For standalone hanging cabinets, a full overlay (door sits over the cabinet front edges) is standard.
Damping: A soft-close mechanism is particularly beneficial in a small bathroom. It prevents doors from slamming shut when closed in a hurry.
Flaps instead of doors: Above the washbasin or toilet, upward-opening flaps are often more practical than hinged doors. They do not protrude into the walkway when open. They are supported by a gas strut. The force of these stays is specified in Newtons (N) and must be matched precisely to the weight of the flap (e.g. 250 N for lightweight fronts).

Installation and Tools: Secure Fixing to Tiled Walls

Assembling and fitting bathroom units requires accuracy. Drilling into tiles is an intimidating prospect for many DIYers. However, with the right technique and suitable tools, wall-hung installation is straightforward.

Required Tools

Power drill (without hammer action for the tile)
Tile drill bit or glass drill bit (usually 6 mm or 8 mm)
Masonry drill bit (for the masonry behind)
Spirit level and tape measure
Cordless screwdriver with matching bits (usually TX or PZ)
Masking tape

Step-by-Step Installation

Measuring and marking: Mark the positions of the drill holes precisely using a spirit level and tape measure. If possible, drill into the grout line. If that is not feasible, mark the hole directly on the tile. A piece of masking tape over the mark prevents the drill bit from slipping on the smooth surface.
Drilling: The hammer action on the drill must be switched off. Drill through the glaze of the tile using light pressure and low speed. Once the masonry is reached, switch to a masonry drill bit and engage the hammer action if required.
Inserting wall plugs: The wall plug must sit completely flush within the drill hole and must not protrude beyond the tile.
Hanging the cabinet: For fixing hanging brackets and rails, chipboard screws or specialised wood screws with a TX drive (Torx) are recommended. This drive type provides optimal power transfer without the risk of the bit slipping.

If you want to create additional storage in the hallway directly outside the bathroom door, space-saving shoe cabinets can be used there as well. They keep fresh towels accessible, relieve storage pressure from the main bathroom, and blend seamlessly into walkways thanks to their shallow depth.

FAQ – Frequently Asked Questions About Small Bathroom Planning

What is the maximum recommended depth for furniture in a small bathroom? For very tight spaces, depths between 15 cm and 30 cm are recommended. Standard units with a depth of 40 cm often obstruct walkways. Alternatives such as space-saving shoe cabinets offer ideal dimensions for narrow alcoves at around 20 cm deep.

Are drawers or doors better when space is limited? Drawers fitted with full-extension runners are ergonomically superior because the contents can be viewed from above without bending down. Standard doors also require a swing clearance that is often unavailable in narrow bathrooms.

How do I adjust the cabinet if the doors are catching? A modern concealed cup hinge can be adjusted in three dimensions. Using the adjustment screws on the hinge arm, the door can be aligned in height, depth (distance to the cabinet), and lateral overlay until the gap alignment is uniform.

Can standard living room units be used in the bathroom? Yes, provided the material is protected from direct water contact. An intact melamine resin coating and sealed edges are essential. Unfinished wood or exposed cut edges will swell under high humidity. Shallow space-saving shoe cabinets made from coated engineered wood can also be fitted in the bathroom without issue.