How high should a shower niche be off the floor?

Set the bottom of the niche 40–48 inches above the finished shower floor for a standing shower, so the shelf sits at chest height and out of the direct spray. In a tub-shower, measure from the tub deck instead and use 30–36 inches. For a seated shower or an aging-in-place layout, drop it to 30–36 inches so the niche is reachable from a bench.

How much does a shower niche cost in Seattle?

A single tiled niche typically runs $300–$900 as part of a larger bathroom project in the Seattle–Tacoma area, depending on size, whether a stud has to be cut and headered, and how much the tile has to be cut to keep the grout lines aligned. It is a line item inside a bathroom remodel of $20,000–$50,000, not a standalone job.

Can a shower niche leak?

Yes, and it is one of the most common leak points in a tiled shower. A niche is a recess cut into the waterproofing plane, so every inside corner, the shelf and the outside edges have to be sealed with the same continuous membrane used on the walls. When a niche leaks it is almost always because the membrane stopped at the opening instead of wrapping out over the surround, or because the shelf was set dead level and held water at the back joint.

Should the niche shelf be sloped?

Slightly. Roughly 1/8 inch per foot of slope toward the shower drains the shelf so water does not pool against the back corner. The slope is small enough that bottles stand up normally and large enough that the shelf dries between showers, which matters in the Puget Sound climate where bathrooms stay damp for most of the year.

How many niches should a shower have?

One well-placed niche handles most bathrooms. A shared primary shower often gets two — one per user, or one tall niche split by a shelf. A second niche is worth the framing coordination only if it lands in a clean stud bay; two niches crowded into one wall usually look like an afterthought and complicate the tile layout.

Where should the niche go relative to the shower head?

On a side wall, out of the direct spray, and never on an exterior wall if it can be avoided. An exterior wall in a Seattle or Tacoma home means giving up insulation depth in a wall that already faces the wet side of the weather, so a niche belongs in an interior partition or a plumbing wall whenever the layout allows.

Can you add a niche to an existing tiled shower?

Not without taking the wall apart. The niche is framed and waterproofed before tile, so adding one later means removing tile, opening the wall, reframing, re-waterproofing and re-tiling that section — which rarely matches the old tile. Practically, a niche is added during a tub-to-shower conversion or a re-tile, both of which run 1–3 weeks.

Does a shower niche need a permit?

By itself, no. A recessed niche is finish and framing work inside an existing wall. A permit is generally tied to what else is happening — relocating plumbing, altering structure, or adding circuits. Permits are issued by the city the home sits in, such as Seattle, Tacoma, Bellevue or Issaquah, or by King or Pierce County for unincorporated addresses.

What tile works best inside a niche?

Whatever keeps the fewest joints inside the recess. A single slab or large-format panel on the back wall means one grout line instead of nine, and a solid stone or quartz shelf beats a tiled shelf because it removes the joint that sits directly under standing water. Mosaic backs look good in photos but add grout in the wettest six square feet of the room.

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What Size Should a Shower Niche Be? Seattle Guide

Sep 2, 2026 9 min Seattle–Tacoma, WA

TileBathroomShowerSeattleTacoma

Recessed shower niche with a stone shelf set into deep-green large-format tile in a Seattle bathroom remodel

TL;DR

A standard shower niche is 12–16 inches tall and 12–36 inches wide, recessed 3.5 inches deep — the depth of a 2x4 stud bay in most Seattle and Tacoma homes. Wider than 14 inches means cutting a stud, which needs a header.
Set the bottom of the niche 40–48 inches off the finished shower floor for a standing shower, and 30–36 inches when the niche serves a tub-shower or a seated bather.
The niche is a hole in your waterproofing, so it is the first place a shower leaks. It gets the same continuous membrane as the walls, lapped from the back panel out over the tiled surround, with the shelf sloped roughly 1/8 inch per foot to drain.
Cost inside a bathroom project is small: usually $300–$900 for a single tiled niche, and it adds about a day to the tile block rather than a week to the schedule.
Timeline context: the niche is built inside a full bathroom remodel of 4–8 weeks, or inside a tub-to-shower conversion or tile-only scope of 1–3 weeks.
Decide the size before demolition. A niche is framed at rough-in, and after the backer board is up, moving it means re-opening a wall you already paid to close.

Quick answer: A shower niche is normally 12–16 inches tall, 12–36 inches wide and 3.5 inches deep — the depth of a standard 2x4 stud bay in most Seattle and Tacoma homes. Put the bottom of the niche 40–48 inches off the finished shower floor in a standing shower, or 30–36 inches over a tub deck. The size matters less than the waterproofing: the niche is a hole in the membrane, and that is where showers leak.

Planning the shower it goes in? Our bathroom remodeling service page covers what the fixed price and fixed scope include, and how to book a free in-home assessment.

Key facts: shower niche sizes in Seattle–Tacoma bathrooms

In the bathrooms we build across Seattle, Tacoma, Bellevue and the wider Puget Sound region, the niche decision comes down to five numbers: 3.5 inches of depth, 12–16 inches of height, 12–36 inches of width, a 40–48 inch mounting height, and $300–$900 of cost inside a bathroom remodel of $20,000–$50,000. Everything below is how those numbers are set and what breaks them.

Depth: 3.5 inches in a 2x4 wall, 5.5 inches in a 2x6 wall — set by framing, not by preference.
Width: up to about 14 inches fits between studs untouched; wider needs a stud cut and a header.
Height of the opening: 12–16 inches for a single niche, taller when it is split by a shelf.
Mounting height: 40–48 inches off the finished shower floor standing, 30–36 inches over a tub deck or for a seated user — see the aging-in-place bathroom guide.
Cost: $300–$900 for one tiled niche as part of a bathroom project; about a day inside the tile block.

Standard shower niche sizes, and what each one holds

There is no code-mandated niche size. What exists is a set of sizes that fall out of framing and of what people actually store in a shower. The table below is the range we build from in King and Pierce County homes, with the trade-off attached to each.

Niche size (W × H)	Framing impact	What it holds	Best for
12" × 12"	Fits inside one stud bay, no stud cut	Two bottles and a bar of soap	Guest and hall baths, tight 5x8 layouts
14" × 14"	Usually the largest true no-cut opening	Shampoo, conditioner, body wash, razor	The default single-user niche
24" × 14"	One stud cut, header and sill added	A full set of bottles plus room to see them	Primary showers, shared bathrooms
36" × 14" (ledge style)	Two stud cuts, engineered header	Everything, spread out instead of stacked	Wide walls, large-format tile layouts
14" × 28" (double, split shelf)	Single bay, taller opening, mid shelf	Two users’ products, separated	Shared showers with no wide wall available
Full-height column	Continuous opening, header at top only	Everything, including a foot rest at the base	Design-led primary suites; most tile cuts

Depth is the number nobody can negotiate. A 2x4 wall gives 3.5 inches minus the thickness of the backer board and tile at the back, which is why a tall pump bottle sits at a slight angle in most niches. A 2x6 plumbing wall gives 5.5 inches and a genuinely deep shelf — if your shower happens to back onto one, that is where the niche belongs.

Niche height: the 40–48 inch rule and when to break it

Measure from the finished shower floor, not the subfloor, or the niche ends up an inch and a half low. For a standing shower, 40–48 inches puts the shelf between waist and chest height for most adults, reachable without stooping and above the heaviest splash. In a tub-shower the reference changes: measure 30–36 inches from the tub deck, because the person using it is often sitting down. The same 30–36 inches applies when the shower has a bench or is being built for someone who bathes seated.

One more constraint that is easy to miss: the niche should land on a full tile course, not force a 2-inch sliver at the top or bottom. On a wall running 24x48 large-format tile, moving the niche an inch to keep the grout lines continuous is worth more visually than hitting an exact height — our guide to 24x48 shower tile walks through how that layout gets planned before the first sheet is cut.

Waterproofing: why the niche is the first place a shower fails

Every niche is a deliberate hole in the waterproofing plane. It adds twelve inside corners, a horizontal shelf and an outside edge to an assembly whose entire job is to be continuous. In the Puget Sound climate, where a bathroom can stay damp from October to May, that is not a theoretical risk — it is the failure we are called to open up years later.

The assembly we build is simple and unglamorous: the membrane runs into the recess as one continuous system, lapped from the back panel across the sill and jambs and out over the face of the surrounding wall, with preformed or banded inside corners rather than a smear of sealant. The shelf gets about 1/8 inch per foot of slope back toward the shower so it drains, and the outside edge of the niche gets a silicone movement joint instead of grout, because that corner moves and grout does not. Cure times apply here the same as everywhere else in the shower — the shower waterproofing guide covers the full wall assembly and the flood test that proves it before tile goes on.

Framing limits in King and Pierce County housing stock

What is actually possible depends on the house. In a 1950s rambler in Lake Hills or a 1920s bungalow in Tacoma’s North End, the shower wall is often 2x4 framing at 16 inches on center, sometimes with a drain stack or a vent running exactly where the client wants the niche. In a 1970s split-level off Newport Way, the wet wall is frequently the only interior wall available and it is full of plumbing. In a 2010s Issaquah Highlands or Kent build, the framing is predictable and the niche is a straightforward decision.

Three rules survive all of them. Do not put a niche in an exterior wall if there is any interior alternative — in a Seattle or Tacoma home that means trading away insulation depth on the weather side of the house. Do not put one in a wall carrying a vent or a drain stack without checking first; the pipe wins. And do not cut more than one stud without a real header sized for the load, because a wide niche in a bearing wall is a structural change, not a tile detail.

What a niche costs and where it lands in the schedule

A single tiled niche typically runs $300–$900 inside a bathroom project in the Seattle–Tacoma area. The spread is framing plus tile labor: a 14-inch niche in a clean stud bay with a slab shelf sits at the bottom, a 36-inch headered opening with mitered edges and a mosaic back sits at the top. It is a small line inside a full bathroom remodel of $20,000–$50,000, or inside a tub-to-shower conversion at $8,000–$25,000.

On the calendar it costs about a day. The niche is framed during rough-in in week 1–2, waterproofed with the rest of the shower in week 2–3, and tiled inside the tile block — it does not extend a full bathroom remodel beyond 4–8 weeks, or a tub-to-shower conversion or tile-only scope beyond 1–3 weeks. The week-by-week bathroom remodel timeline shows where each of those stages falls.

The one expensive version of this decision is a late one. A niche is framed before the walls close. Ask for it after the backer board is up and you are paying to open, reframe, re-waterproof and re-tile a wall that was already finished. Decide during selections, mark it on the wall at demolition, and it stays a $300–$900 detail.

How we build niches in Seattle and Tacoma

We mark the niche on the wall with you before demolition, at the real height, in the real place, so nobody is approving a dimension on paper. It is framed at rough-in, waterproofed as part of the continuous shower assembly, and tiled with the layout planned so the grout lines carry through the opening. The shelf is sloped, the perimeter is siliconed, and the scope and price are fixed in writing with the exclusions spelled out before work begins.

See how it fits the larger job on our tile installation, tub-to-shower conversion and bathroom remodeling pages, or send us your bathroom details for a free estimate across King and Pierce counties.

Related Bathroom Remodeling Guides

Quick answers: What Size Should a Shower Niche Be? Seattle Guide

What size should a shower niche be?: The common size is 12–16 inches tall and 12–36 inches wide, recessed about 3.5 inches deep. Depth is fixed by the wall: a 2x4 stud bay in a typical Seattle or Tacoma home leaves 3.5 inches, which is enough for a shampoo bottle laid at an angle. Width is what varies — up to roughly 14 inches fits between studs untouched, and anything wider means cutting a stud and adding a header.
How high should a shower niche be off the floor?: Set the bottom of the niche 40–48 inches above the finished shower floor for a standing shower, so the shelf sits at chest height and out of the direct spray. In a tub-shower, measure from the tub deck instead and use 30–36 inches. For a seated shower or an aging-in-place layout, drop it to 30–36 inches so the niche is reachable from a bench.
How much does a shower niche cost in Seattle?: A single tiled niche typically runs $300–$900 as part of a larger bathroom project in the Seattle–Tacoma area, depending on size, whether a stud has to be cut and headered, and how much the tile has to be cut to keep the grout lines aligned. It is a line item inside a bathroom remodel of $20,000–$50,000, not a standalone job.
Can a shower niche leak?: Yes, and it is one of the most common leak points in a tiled shower. A niche is a recess cut into the waterproofing plane, so every inside corner, the shelf and the outside edges have to be sealed with the same continuous membrane used on the walls. When a niche leaks it is almost always because the membrane stopped at the opening instead of wrapping out over the surround, or because the shelf was set dead level and held water at the back joint.
Should the niche shelf be sloped?: Slightly. Roughly 1/8 inch per foot of slope toward the shower drains the shelf so water does not pool against the back corner. The slope is small enough that bottles stand up normally and large enough that the shelf dries between showers, which matters in the Puget Sound climate where bathrooms stay damp for most of the year.
How many niches should a shower have?: One well-placed niche handles most bathrooms. A shared primary shower often gets two — one per user, or one tall niche split by a shelf. A second niche is worth the framing coordination only if it lands in a clean stud bay; two niches crowded into one wall usually look like an afterthought and complicate the tile layout.
Where should the niche go relative to the shower head?: On a side wall, out of the direct spray, and never on an exterior wall if it can be avoided. An exterior wall in a Seattle or Tacoma home means giving up insulation depth in a wall that already faces the wet side of the weather, so a niche belongs in an interior partition or a plumbing wall whenever the layout allows.
Can you add a niche to an existing tiled shower?: Not without taking the wall apart. The niche is framed and waterproofed before tile, so adding one later means removing tile, opening the wall, reframing, re-waterproofing and re-tiling that section — which rarely matches the old tile. Practically, a niche is added during a tub-to-shower conversion or a re-tile, both of which run 1–3 weeks.
Does a shower niche need a permit?: By itself, no. A recessed niche is finish and framing work inside an existing wall. A permit is generally tied to what else is happening — relocating plumbing, altering structure, or adding circuits. Permits are issued by the city the home sits in, such as Seattle, Tacoma, Bellevue or Issaquah, or by King or Pierce County for unincorporated addresses.
What tile works best inside a niche?: Whatever keeps the fewest joints inside the recess. A single slab or large-format panel on the back wall means one grout line instead of nine, and a solid stone or quartz shelf beats a tiled shelf because it removes the joint that sits directly under standing water. Mosaic backs look good in photos but add grout in the wettest six square feet of the room.

Get a fixed price for your Seattle or Tacoma project

Four fields, about 30 seconds. We reply within 2 business hours, Monday–Friday 8am–5pm PT, and we work across King and Pierce counties — Seattle, Bellevue, Issaquah, Renton, Kent, Tacoma and the towns between them. Bathroom remodels here run $20,000–$50,000 over 4–8 weeks and tub-to-shower conversions $8,000–$30,000 over 1–3 weeks; your written estimate prices your actual room, with the exclusions spelled out.