A recessed shower niche is one of the smallest line items in a bathroom remodel and one of the most-requested — but it's also one of the details most likely to be planned poorly, because it's genuinely easy to get the placement, sizing, or waterproofing wrong in ways that only become obvious after the tile is already set.
Placement: where a niche actually needs to go
The most common mistake is placing a niche purely for visual symmetry rather than for where it's actually reached during a shower. A niche should sit within comfortable arm's reach of where you stand under the showerhead — typically on the same wall as the shower controls or the adjacent wall, roughly shoulder to chest height. A niche centered on the back wall of a large shower for visual balance, but far from where anyone actually stands, ends up rarely used despite looking good in photos.
Sizing it for what actually goes in it
A single-shelf niche needs to be sized for full-size shampoo and conditioner bottles standing upright, not travel-size samples — a common sizing mistake is building a niche too shallow or too short, forcing bottles to lie on their sides. A comfortable single-shelf niche typically runs at least 12" wide by 7" tall by 4" deep; a double-shelf niche, which we recommend for any shower used by more than one person or with a wider range of products, needs roughly double that vertical space split across two shelves.
Waterproofing: the part that actually matters
A niche is a hole cut into a waterproofed wall, which means it needs its own complete waterproofing membrane, not just tile applied over the cut opening. This includes the back wall, all interior side walls, and — critically — the shelf itself, which needs to be sloped very slightly forward so water drains out rather than pooling on the shelf and eventually finding its way behind the tile. A niche installed without this slope is a slow, hidden leak risk that often doesn't show up as a visible problem for years.
Trim options
The edge where the niche opening meets the surrounding wall tile needs a clean finish, and there are a few standard approaches: a metal trim strip (usually matched to your fixture finish — brushed brass, matte black, or brushed nickel), a mitered tile edge for a seamless all-tile look, or a natural stone or quartz shelf insert as a contrasting accent. Metal trim is the fastest and most forgiving option; a mitered edge looks cleanest but requires a more skilled installer and typically costs more in labor.
Single niche vs. multiple smaller niches
For showers used by multiple people with different product needs, two smaller niches — one at a lower height, one higher — sometimes work better than a single large one, since it keeps each person's products separated rather than crowded together on shared shelves. This is a detail worth discussing during design if the shower will regularly serve more than one household member with different routines.
What it actually costs
A single recessed niche typically adds $300–$700 to a shower project, covering the framing, waterproofing, and trim — genuinely inexpensive relative to the rest of a shower build, which is part of why it's one of the most commonly added upgrades once homeowners see the price during design.