Formed and Prefabricated Niches
Two construction routes are in common use and they suit different situations.
A formed niche is built on site from board and framing within the wall, then waterproofed and tiled as part of the wall. It can be any size the wall allows, and it can be tiled to match the surrounding wall exactly, which is what most designers want.
A prefabricated niche is a molded unit built into the wall as a single piece and then tiled around. Because the box itself is one waterproof piece with no internal corners to seal, it removes the most failure-prone part of the detail. It comes in fixed sizes and its interior may be a different surface from the wall, which some buyers want and others do not.
For repeat rooms in a hotel or apartment project, the prefabricated route is usually the better one: consistent, faster, and it removes a workmanship variable that would otherwise be repeated across every bathroom.
- Formed on site: any size, tiled to match the wall exactly
- Prefabricated: one waterproof piece, no internal corners to seal
- Prefabricated comes in fixed sizes
- For repeat rooms, prefabricated removes a workmanship variable
- Solid surface niches can be made to size with no visible joints
Sizing and Positioning
Depth is set by the wall. In a standard stud wall the void gives a usable niche around 90 to 100 mm deep, which takes most bottles. Anything deeper requires a thickened wall, a service void, or a chase into masonry, all of which are construction decisions rather than choices.
Height above the floor should suit the person using it, not the tile course. Somewhere around chest height puts bottles within easy reach without bending; a second lower niche or shelf is useful for a foot when shaving legs. In an accessible bathroom the position should be confirmed against the applicable standard, and reachable from a seated position.
Width is a free choice within the stud bay. A long horizontal niche spanning between studs reads as a deliberate architectural line and holds far more than a small square one. A tall vertical niche fits within a single bay and suits narrow walls.
The one instruction that saves an argument later: coordinate the niche with the tile setting-out. A niche whose edges do not align with a grout line looks like an accident, and it is free to prevent on a drawing.
- Depth around 90 to 100 mm in a standard stud wall
- Position at reachable height, not at a convenient tile course
- Long horizontal niches hold more and read better
- Confirm reach requirements for accessible bathrooms
- Align the niche edges with the tile setting-out
Waterproofing and Drainage
A niche is a hole in a waterproofed wall, which makes it a potential weak point unless it is treated as part of the waterproofing rather than an interruption to it.
The membrane must run continuously into the recess, across its base, up its back and returning out to the wall face. Internal corners are reinforced. Stopping the membrane at the opening and relying on tile and grout inside the niche is the failure mode, and it is not visible once tiled.
The base needs a slight fall outward so water drains rather than pooling. A perfectly level niche base holds a shallow pool of water permanently, which discolors grout and eventually finds the weakest point.
And avoid placing a niche on an external wall where the recess reduces insulation, or directly opposite the shower head where it takes the full spray.
- Membrane runs continuously into and out of the recess
- Reinforce every internal corner
- Fall the base slightly outward so water drains
- Do not stop the waterproofing at the opening
- Avoid external walls and the direct spray line
Storage Intent and Niche Count
Before a size or format is chosen, decide what the niche actually needs to hold. A single niche for shampoo and soap needs far less depth and width than one that also stores a razor shower base, shaving mirror or spare towels, and that difference changes both the wall depth required and the shelf count.
On a repeat-room project — a hotel floor or an apartment block — it is worth settling on one or two standard niche configurations early rather than sizing every room individually. A single approved module keeps tiling and waterproofing detailing consistent across rooms and reduces the number of separate reference drawings a site team has to work from.
WNS Global’s bathroom niche range is organized around this project-planning approach: niche size, orientation and shelf configuration are confirmed against the room plan before production rather than assumed from a catalog image.
- Match niche depth and width to what will actually be stored
- Standardize on one or two configurations for repeat rooms
- A larger niche count adds tiling and waterproofing detail to review
- Confirm shelf count and spacing against the storage intent
Confirming the Wall Before Choosing a Niche
Not every wall can accept a niche in the position a design first proposes. Stud spacing, concealed pipework or cabling, structural bracing, and fire or acoustic separation requirements can all rule out a niche at a given point on the wall, or limit how deep it can go.
Confirm the finished wall build-up — stud and lining, masonry, or a prefabricated wall panel system — before deciding between a formed niche and a prefabricated unit. The wall condition also determines how much of the waterproofing detail is a site responsibility versus a product specification.
WNS Global specifies and supplies the niche unit or module to the approved design; confirming the wall cavity, framing and services on site, and executing the waterproofing and tiling around the niche, remain the responsibility of the installer or contractor unless otherwise agreed in writing.
- Identify stud spacing, pipework, cabling and structural bracing first
- Confirm masonry, stud wall or panel system before choosing a niche type
- Product specification and on-site installation are separate responsibilities
- Not every wall position will support a niche at the depth requested
LED Lighting, Stainless Steel and Recessed Storage Options
Beyond the basic recess, several finish and feature options are commonly discussed at the planning stage: LED lighting built into the niche, a stainless steel or solid surface interior liner instead of tile, and multi-tier recessed storage for projects that want more than a single shelf.
None of these should be assumed as standard. LED components, in particular, add a wiring and waterproofing interface that must be confirmed and coordinated with the electrical contractor before the drawing is finalized. Interior liner material and finish should also be confirmed per project rather than assumed from a general product photo.
Where a feature is wanted, note it on the requirement brief early — retrofitting an LED niche or changing the interior liner after the wall is closed is not practical, in the same way the niche itself cannot be added after tiling.
- LED lighting requires confirmed wiring and waterproofing coordination
- Interior liner material and finish: confirm per project, not assumed
- Multi-tier recessed storage suits projects wanting more than one shelf
- Add-on features are decided at the drawing stage, not after the wall is closed
Project Drawing Confirmation
As with any built-in bathroom feature, the niche size, position, orientation, shelf lines, trim direction and waterproofing interface should be shown on an approved drawing before the wall is built or tiled. A product photo or a verbal description is not sufficient for production or site coordination.
For project orders, confirming the drawing against the actual site conditions — wall thickness, framing, concealed services and tile schedule — is the step that prevents a niche from being specified in a position the wall cannot actually support.
The same drawing-approval principle applies across built-in bathroom fittings; see how to measure for a shower enclosure for the equivalent process on shower doors and screens.
- Show niche size, position, shelf lines and trim on the drawing
- Confirm wall thickness, framing and services against the drawing
- A product photo does not substitute for an approved drawing
- Apply the same drawing-approval step across built-in bathroom fittings
