Shower niche: dimensions, location and mistakes to avoid

Discreet storage that must be planned from the design stage

A shower niche frees up floor space and eliminates the need for additional shelving. When well-integrated, it becomes an elegant architectural detail. However, if it's poorly sized or installed in the wrong place, it can be impractical, difficult to clean, or compromise the wall's waterproofing.

Its design should therefore not be decided once the ceramic work has begun. Its dimensions, height, and placement must be coordinated with the wall structure, plumbing, waterproofing system, and tile format.

Measuring and Installing a Shower Niche

What will the niche actually be used for?

The products to be stored determine its dimensions

Before designing the niche, you need to determine what it will contain. A small shelf might be enough for a bar of soap and a few containers, but not for products used by an entire family.

It is useful to draw up a realistic list:

• bottles of shampoo and conditioner;

• containers equipped with a pump;

• shower gel;

• soap;

• children's products;

• razor;

• care accessories;

• products used occasionally.

Larger pump bottles require more height than standard sizes. Sufficient space must also be left above the container to allow for easy operation of the pump or removal of the bottle.

A niche that is too small will quickly become cluttered. A niche that is too large will unnecessarily occupy wall space and may give the impression of an empty rectangle when few items are placed in it.

What dimensions should I choose?

There is no universal format

The ideal dimensions depend on the occupants, the available wall space, and the number of items to be stored. It's also important to distinguish between the module's external dimensions and its internal dimensions after the wall covering is installed.

As a guideline, we can consider:

Type of niche	Approximate dimensions	Use
compact niche	12 × 12 in	A few small containers
Vertical niche	12 × 20 or 12 × 28 in	Bottles of varying heights
Horizontal niche	24 to 36 inches wide	Products from multiple users
Niche with shelf	Variable format	Separation of small and large containers

These measurements are starting points, not rules. Prefabricated niches are available in several formats , including 12 × 6, 12 × 12, 12 × 20 and 12 × 28 inch models.

The final format must be confirmed based on the available opening between the uprights, the thickness of the panels, the ceramic, and the planned installation methods.

What depth should be expected?

A niche should hold the products without becoming difficult to clean

The depth generally depends on the thickness of the wall. In a conventional interior partition, the available space between the shower enclosure and the back of the wall is limited by the studs, panels, and finish of the adjacent room.

A shallow niche can accommodate standard bottles if its shelf provides a stable surface. Conversely, a very deep niche isn't necessarily more practical: small items can end up at the bottom, and the corners become more difficult to wipe clean.

The depth must also be examined if the wall accommodates:

• plumbing pipes;

• electrical cables;

• a structural column;

• ventilation;

• another built-in device;

• a wardrobe in the next room.

The wall should never be opened under the assumption that it is empty. Prior verification prevents the creation of a niche in a technically unusable location.

At what height should the doghouse be installed?

The correct placement corresponds to the user's natural gesture.

A niche should be accessible without excessive bending or uncomfortably raising the arm. Its height therefore depends on the height of the users and how the shower will be used.

In an adult shower, the lower part of the niche is often placed approximately 36 to 48 inches from the floor. This range should, however, be adapted to the specific project.

A niche can be installed lower down when it needs to be accessible:

• to a person sitting on a bench;

• to a child;

• to a person of small stature;

• to a user with limited mobility.

In a family bathroom, a vertical niche divided by a shelf can make products accessible at different heights. Another solution is to create two smaller niches rather than one very large opening.

The location should be tested with a simple gesture: standing or sitting in the future shower, the user should be able to reach their products without having to turn around completely.

Which wall should the niche be placed on?

The most visible location is not always the most appropriate

A niche can become a decorative element when placed in line with the entrance to the bathroom. However, the choice of wall must first respect the existing structure and fixtures.

It is generally best to avoid:

• a wall filled with pipes;

• the wall directly behind the taps;

• a structural amount that is difficult to modify;

• a heavily insulated exterior wall;

• a partition that is too thin;

• a location directly exposed to the main jet.

The wall housing the shower fixtures may contain the shower supply, valve, shower column, or other connections. A niche placed there could interfere with these elements.

An exterior wall also requires special attention. Recessed construction can reduce the space available for insulation and create a colder zone. In Montreal's climate, this decision should only be made after a thorough examination of the wall's composition.

When the configuration allows, a clear interior wall is often the simplest and most reliable choice.

Horizontal or vertical niche?

The direction of the opening influences the structure and appearance

A vertical niche fits more easily between two uprights when its width matches the available space. It can be divided with a shelf to accommodate products of different heights.

A long, horizontal niche creates a contemporary look and provides extra storage. However, its construction may require modifying several wall studs. A new frame must then be built to properly support the wall's weight.

Therefore, simply cutting the uprights is not enough to obtain the desired width. Whether the partition is load-bearing or non-load-bearing must be verified before any modification.

The horizontal niche must also remain proportionate to the shower. In a small space, a very long opening can visually dominate the wall and multiply the surfaces that need to be waterproofed.

Coordinate the niche with the ceramic

A few inches can change the entire composition of the wall

One of the most common mistakes is fixing the niche's location without considering the tile layout. The installer then has to make very small cuts around the opening or interrupt the grout lines in an unsightly way.

Ideally, the niche is positioned after determining:

• the exact format of the tiles;

• their orientation;

• the thickness of the joints;

• the starting point of the pose;

• the finished dimensions of the shower;

• the type of border planned.

With large tiles, a slight height adjustment can align the top and bottom of the niche with the horizontal joints. This results in a cleaner finish and better-balanced cuts.

Depending on the desired style, the interior of the niche can match the wall tiles or be finished with a contrasting material. A subtle contrast can highlight the opening, while a uniform finish creates a more understated look.

Bring the tablet from the start

The internal divider must be compatible with the containers used.

In a high niche, a shelf allows for the creation of two storage areas. The lower part can hold large bottles and the upper part soaps or small containers.

Before determining its height, you must measure the tallest products and allow sufficient clearance for handling them. A partition located directly above a pump may prevent its use.

The shower shelf can be covered in ceramic, made from a prefabricated panel, or integrated into the chosen system. In all cases, it must be stable, watertight, and slightly angled towards the inside of the shower to prevent water from pooling at the bottom.

The waterproofing of the niche

The angles and joints require special attention

The niche involves multiple changes in plane: back, sides, ceiling, shelf and perimeter. Each of these junctions must be integrated into the shower's waterproofing system.

A reliable installation relies in particular on:

• a rigid support;

• angles properly treated;

• a continuous membrane;

• compatible fittings;

• carefully sealed penetrations;

• a watertight connection with the rest of the wall.

A prefabricated niche can simplify certain steps, but it doesn't eliminate the need to properly address its connection to the surrounding panels. The system must be installed according to the manufacturer's instructions.

Improvised assemblies using incompatible materials are particularly risky. A niche should not rely solely on grout or silicone sealant to prevent water from penetrating the wall.

To give a slope to horizontal surfaces

The water needs to return to the shower

The bottom of the niche and each shelf should slope slightly towards the shower. Without this slope, water will collect against the back wall, leaving deposits and keeping the containers in a constantly damp area.

This slope must be created in the substrate. It should not depend solely on the thickness of the mortar or the final positioning of the ceramic.

It must be discreet enough to keep the bottles stable, but sufficient to allow water to flow freely. The level is therefore used to check lateral horizontality while also controlling the forward tilt.

Should a shower niche be illuminated?

An aesthetic detail that requires additional planning

Integrated lighting can highlight materials and create a pleasant atmosphere. However, it adds electrical constraints in an area exposed to water.

Lighting must be planned before the wall is closed. The light fixture, wiring, connections, and their protective devices must be designed for this environment.

Prefabricated niches with integrated lighting and a waterproof junction box are available. For a custom installation, coordination between the waterproofing system and the electrical installation is essential.

In a small shower, well-placed general lighting may suffice. Adding a light strip shouldn't complicate the project if its effect remains subtle.

The most common mistakes

A successful niche lies in the details.

Here are the main problems to avoid:

1. Choose the dimensions without measuring the containers.

   
   

   Pump bottles do not fit or can no longer be used correctly.

2. Decide on the location after the ceramic work has begun.

   
   

   The niche does not align with the joints and requires small, unsightly cuts.

3. Opening a wall without checking its contents.

   
   

   The niche comes into conflict with a pipe, a valve, or a structural element.

4. Cutting an amount without providing reinforcement.

   
   

   The opening weakens the partition and compromises the stability of the coating.

5. Installing the niche on an exterior wall without analysis.

   
   

   Recessed installation reduces insulation or disrupts the continuity of the building envelope.

6. Forget about the tablet's slope.

   
   

   The water remains in the niche and promotes the appearance of traces.

7. Rely on ceramic to ensure a watertight seal.

   
   

   Ceramics and grout do not replace a continuous membrane.

8. Position the niche facing the main jet.

   
   

   Products and surfaces receive an unnecessarily large amount of water.

9. Creating a niche that's too large.

   
   

   The opening dominates the shower and increases the number of fittings to be sealed.

10. Neglecting the thickness of the finishes.

    
    

    The usable dimensions become smaller than those planned in the plan.

Plan the niche before work begins

An early decision improves both usability and finish

A well-designed niche is not simply a hole added in the wall. It is part of the structure, the waterproofing, and the visual composition of the shower.

Before demolition, it is therefore useful to determine:

• the products to be stored;

• the desired dimensions;

• the accessible height;

• the wall under consideration;

• the format of the ceramic;

• the type of niche;

• the possible presence of a tablet;

• the finishing of the edges;

• the need for lighting or not.

Some decisions will need to be confirmed after the wall is opened. However, prior planning allows for an alternative solution to be found if the initial location proves incompatible with the plumbing or structure.

Entrusting the shower design to BonBain

Integrating the niche into a coherent and sustainable project

The success of a niche depends on its daily use, but also on details that are invisible once the shower is finished. Its support, waterproofing, slope, and alignment with the ceramic tiles must be considered as a whole.

BonBain can assess the available wall space, suggest suitable dimensions, and integrate the niche into the overall shower design. The goal is to achieve practical, easy-to-maintain storage that blends seamlessly into the decor.

To discuss your renovation, fill out BonBain's free estimate request .