HomeJobCosts

Bathroom Remodel Cost Per Square Foot: What the Number Actually Measures (2026)

Based on aggregated data, a full bathroom remodel costs $10,000 to $30,000, with a typical project near $20,000. Divide those figures by the size of a real bathroom and the per-square-foot answer comes out anywhere between $65 and $855 per square foot.

That is not a data problem. It is what the metric does. A bathroom’s cost is dominated by fixtures and plumbing, and a toilet costs the same in a 35 square foot room as in a 70 square foot one. So the same $20,000 remodel prices out at:

BathroomFloor area$20,000 remodel works out to
5×7 small full bath35 sq ft$570 per sq ft
5×8 standard bath40 sq ft$500 per sq ft
6×8 bath48 sq ft$415 per sq ft
8×10 primary bath80 sq ft$250 per sq ft
10×10 primary suite100 sq ft$200 per sq ft

Same work. Same fixtures. Same contractor. The per-square-foot figure falls as the room grows — which is the exact opposite of how the number is normally used, because a homeowner who reads “$250 per square foot” and applies it to a small bathroom will budget $10,000 for a job that aggregated data puts at $20,000.

This page gives the per-square-foot figures anyway, because they are useful in one specific way, and then shows exactly which parts of a bathroom are priced by area and which are not.

Bathroom Remodel Cost Per Square Foot, by Room Size

The table below applies the aggregated full-remodel range — $10,000 low / $20,000 typical / $30,000 high — to the room sizes bathrooms actually come in. The dollar figures per square foot are derived, not quoted: they are the project cost divided by the floor area, rounded to the nearest $5.

RoomFloor areaBudget ($10,000)Typical ($20,000)High-end ($30,000)
Powder room, 4×520 sq ft$500/sq ft$1,000/sq ft$1,500/sq ft
Small full, 5×735 sq ft$285/sq ft$570/sq ft$855/sq ft
Standard, 5×840 sq ft$250/sq ft$500/sq ft$750/sq ft
Standard, 6×848 sq ft$210/sq ft$415/sq ft$625/sq ft
Larger full, 6×1060 sq ft$165/sq ft$335/sq ft$500/sq ft
Primary, 8×1080 sq ft$125/sq ft$250/sq ft$375/sq ft
Primary, 10×10100 sq ft$100/sq ft$200/sq ft$300/sq ft
Large primary suite150 sq ft$65/sq ft$135/sq ft$200/sq ft

The powder room row is not a real full-remodel figure — a half bath has no tub or shower — and it is included only to show how violently the metric distorts at small areas. The real half-bath numbers are further down.

Two things fall out of this table.

The spread is 13 to 1. The lowest cell is $65 per square foot and the highest is $1,500. No other trade produces a range like that, because in most trades the thing being bought is the area: a roof, a driveway, a floor. A bathroom is a room full of objects that happen to sit on a floor.

Most of the spread is room size, not scope. Read across a single row and you see the effect of finish level: budget to high-end triples the number. Read down a single column and you see the effect of floor area: it moves the number by a factor of 7 to 8, with the scope held completely constant. Area moves the per-square-foot figure more than the remodel itself does.

Why the Number Behaves This Way: Fixed vs Variable Costs

Split a bathroom budget into two piles and the whole thing becomes predictable.

Fixed costs are per-fixture and per-connection. They are identical whether the room is 35 square feet or 105. Variable costs scale with area — and there are only four of them.

Line itemFixed or variable?Aggregated cost rangeTypical
Bathroom plumbing rough-in (supply + drain + vent)Fixed — per fixture group$1,500–$5,000$3,000
Toilet installationFixed — per unit$200–$700$400
Bathroom sink installationFixed — per unit$280–$1,400$650
Vanity replacementFixed — per unit$500–$3,000$1,500
Bathtub replacementFixed — per unit$1,500–$8,000$2,500
Walk-in shower installationFixed — per unit$4,000–$20,000$9,000
Shower panFixed — per unit$500–$3,500$1,400
Shower valve replacementFixed — per unit$200–$900$425
Shower door installationFixed — per unit$400–$3,000$1,000
Floor tileVariable — per sq ft of floor$17–$30/sq ft installed~$23/sq ft
Wall and shower tileVariable — per sq ft of wall$17–$30/sq ft installed~$23/sq ft
Waterproofing membraneVariable — per sq ft of wet areapart of the tile package—
Drywall, primer, paintVariable — per sq ft of wallthe cheapest surface in the room—
Demolition and disposalMostly fixed — a bathroom is a day either wayinside the labor band—
PermitsFixed — flat feeset by the jurisdiction; not itemized in this dataset—

Add the fixed column for a conventional full bathroom — rough-in, toilet, sink, vanity, tub, valve, shower door — and aggregated standalone pricing lands near $9,475, or roughly $9,500. (Bought as separate visits, each of those carries its own trip charge and setup, so a general contractor doing them inside one remodel prices them lower. The point is not the exact sum; it is that a large, dominant block of the budget does not know how big the room is.)

Now compare it to the variable column. A 5×8 bathroom has 40 square feet of floor. Tile it at the aggregated $17 to $30 per square foot small-bathroom rate and the floor is $680 to $1,200. Double the room to 80 square feet and the floor becomes $1,360 to $2,400 — an increase of roughly $700 to $1,200 on a $20,000 project, or 3 to 6 percent, for a room that is twice the size.

That single comparison is the whole article. Doubling a bathroom’s floor area roughly doubles the tile — and tile is one of the smaller lines.

What a Contractor’s Bid Actually Counts

No bathroom remodeler prices work at “X dollars per square foot.” Bids are assembled from fixtures, scopes and trade minimums:

The bathroom plumbing rough-in is the cleanest illustration in the dataset. Aggregated data puts it at $1,500 to $5,000 — $300 to $1,200 in pipe and fittings, and $1,100 to $3,500 in labor. The pipe run in a 100 square foot bathroom is a few feet longer than in a 40 square foot one; the cost driver is the number of fixtures being fed and vented, whether the floor has to be opened, and how far the new fixtures sit from the existing stack. Move the toilet three feet and the rough-in line moves by more than doubling the room’s floor area does.

The Lines That Genuinely Are Priced Per Square Foot

The per-square-foot metric is not useless. It is just being applied to the wrong thing. Four lines are real, quotable, per-square-foot rates:

Area-driven lineAggregated installed rateWhat drives it
Floor tile, small bathroom$17–$30/sq ftCut density — around 70 to 80 percent of tiles in a small bath need at least one cut
Floor tile, large open floor$10–$14/sq ftFewer cuts per tile laid
Wall and shower tile$17–$30/sq ftVertical work, waterproofing, niches, corners, trim pieces
Whole-bathroom tile package~$23/sq ft over the tiled surfaceThe mid-range $3,500 package covers roughly 155 sq ft of floor, tub surround and backsplash

That last row is the most useful number on this page for anyone actually planning a job. Bathroom tile installation runs $1,500 to $7,000 with a typical package near $3,500 — split into roughly $500 to $3,000 of material and $900 to $3,800 of labor. Because the mid-range package covers about 155 square feet of tiled surface, it works out to about $23 per square foot, and unlike the whole-remodel figure, that rate transfers cleanly between rooms.

Note the counter-intuitive first two rows. A small bathroom floor costs more per square foot to tile than a large one — $17 to $30 against $10 to $14 — because tile labor is priced by cuts, not by area. Even the one genuinely area-driven line in the room gets more expensive per square foot as the room gets smaller. Both of the site’s per-square-foot effects push in the same direction, which is why small-bathroom quotes look so shocking against a national average.

The general market rates for the tile itself are covered in the tile installation cost guide ($5 to $30 per square foot installed depending on material) and the porcelain tile guide ($7 to $16 per square foot).

The Marginal Square Foot: What Extra Floor Area Really Costs

The most misleading use of the metric is applying an average to a change. If a 40 square foot bathroom costs $500 per square foot, does adding 20 square feet cost $10,000?

No. The added area buys:

Aggregated data puts the added work at roughly $500 to $1,200, or $25 to $60 per added square foot — one twentieth of the room’s own average per-square-foot figure.

The catch, and it is a large one: that arithmetic holds only if the walls do not move. Enlarging a bathroom by taking space from a closet means framing, a possible header, new electrical, drywall repair on the other side, flooring repair in the donor room, and very often relocating the plumbing — and the moment a drain moves, the fixed side of the ledger reopens. The 20 square feet themselves are cheap. Getting them is not. In practice, homeowners meet the marginal figure honestly only when they are already gutting and the layout stays put.

The same logic runs backwards for anyone planning a gut. Adding tile is cheap; adding fixtures is not. A second sink adds a rough-in group, a second faucet and a wider vanity. Splitting a tub and shower into two separate fixtures adds a second valve, a second drain and a second waterproofed enclosure. Those are the decisions that move a bathroom budget by thousands, and none of them is visible in a square-foot number.

Cost Per Square Foot by Bathroom Type

Different bathroom types have different fixture counts, and the per-square-foot figure reflects the fixture count far more than the room.

Bathroom typeTypical sizeAggregated project rangeTypical projectDerived $/sq ft (typical)
Half bath / powder room15–30 sq ft$1,500–$12,000$4,500~$225/sq ft at 20 sq ft
Small full bath35–40 sq ft$3,000–$15,000$9,000~$225/sq ft at 40 sq ft
Full bath (gut remodel)40–60 sq ft$10,000–$30,000$20,000~$415/sq ft at 48 sq ft
Primary bath80–150 sq ft$10,000–$30,000+$20,000+~$200/sq ft at 100 sq ft
Accessibility remodelany$5,500–$20,000$12,000depends entirely on the room

Look at the first two rows. A half bath remodel ($1,500 to $12,000, typically $4,500) and a small bathroom remodel ($3,000 to $15,000, typically $9,000) land on the same $225 per square foot — even though the half bath has no tub, no shower, no shower valve, no waterproofing and no glass. The full bath does twice the work in twice the space, and the metric reports them as identical. That coincidence is a good demonstration of how little the number carries.

The half bath is where the metric fails hardest. Aggregated data gives a range of $75 to $600 per square foot for a powder room, against the roughly $150 to $300 per square foot commonly quoted for bathrooms in general. In a 15 square foot room, a toilet, a sink, a light, an exhaust fan and a plumber’s minimum charge are the entire budget — and none of them has a square foot in it.

An accessibility or walk-in shower remodel ($4,000 to $20,000 for the shower alone) breaks the metric in the other direction: a curbless entry, a linear drain, blocking for grab bars and a sloped, fully waterproofed floor concentrate cost into a 5 to 15 square foot area, and the figure per square foot of shower is unrecognisable against the figure per square foot of bathroom.

Materials vs Labor — and Why Labor Is the Bigger Half

The aggregated full remodel breaks down as:

ComponentBudgetTypicalHigh-end
Materials$3,000$6,000$10,000
Labor$6,000$12,000$18,000
Project total (compiled)$10,000$20,000$30,000

The two bands are compiled separately from the project total, so they come to $9,000 to $28,000 against a $10,000 to $30,000 project; the total is the figure to budget from.

Labor is about 60 percent of a bathroom remodel — the highest labor share of any room in a house, because a bathroom packs the greatest number of trades into the smallest area: demolition, plumbing, electrical, framing, drywall, waterproofing, tile, glass, paint. A kitchen has more cabinets; a bathroom has more connections.

This is also why the labor share does not fall as the room gets bigger. Tile is the labor-cheap line per square foot; it is the fixtures and connections that eat crew hours, and they are fixed. So a 100 square foot bathroom is not “more efficient” in any per-square-foot sense — it simply spreads the same crew hours across more floor.

The materials figure, by contrast, is broadly national: a toilet, a valve and a box of porcelain cost about the same in Chicago as in San Antonio. Only labor moves with the metro — which is what the next table measures.

What Each Quality Tier Actually Buys

The three columns in the size table — $10,000, $20,000, $30,000 — are finish levels, and the difference between them is almost entirely in the materials half of the split: $3,000, $6,000 and $10,000 respectively. The labor half ($6,000 / $12,000 / $18,000) rises too, but for a different reason: expensive materials are slower to install, not simply dearer to buy.

TierMaterials budgetWhat the money is spent onTypical $/sq ft in a 40 sq ft bath
Budget — $10,000$3,000Stock vanity, standard toilet, acrylic tub or a prefabricated shower base, ceramic floor tile in a straight lay, painted walls above a tiled surround, existing layout untouched$250/sq ft
Typical — $20,000$6,000Semi-custom vanity with a stone top, tiled shower with a waterproofing membrane, porcelain floor, framed or semi-frameless glass, new lighting and exhaust fan, existing layout untouched$500/sq ft
High-end — $30,000$10,000Custom vanity, full-height wall tile, curbless or linear-drain shower, heavy frameless glass, upgraded valves and trim, and often a layout change$750/sq ft

The tier that costs the most per square foot to build is the tier that moves the plumbing — and a layout change is not a finish decision at all. It is a rough-in decision, which is why the high-end column climbs faster than the material list alone accounts for.

Notice what the tiers do not change: the number of fixtures. All three columns buy one toilet, one sink, one bathing fixture. A $30,000 bathroom and a $10,000 bathroom of the same size hold the same objects, connected to the same drains, in the same places — the expensive one just spent three times as much on what those objects are made of and how the surfaces around them are finished. That is why finish level moves the per-square-foot figure by a factor of 3 while room size moves it by a factor of 7 or 8.

Cost Per Square Foot by City

Metro labor is the one legitimate reason two identical bathrooms carry different per-square-foot figures. Labor adjustment factors here are measured from BLS metropolitan wage data, not estimated from cost of living: materials stay flat, labor scales.

City Labor Adjustment Factor Adjusted Typical RemodelAdjusted $/Sq Ft (40 sq ft bath) vs. National
Chicago, IL 1.33 $21,960$665 +33%
Seattle, WA 1.29 $21,480$645 +29%
New York, NY 1.23 $20,760$615 +23%
Houston, TX 0.93 $17,160$465 −7%
San Antonio, TX 0.85 $16,200$425 −15%

Labor adjustment factors are derived from BLS Occupational Employment and Wage Statistics (May 2025): the median ratio of local to national hourly wages across the trades that do this work. How this is calculated.

The metro spread on a typical remodel is real but modest next to the size effect: the gap between the most and least expensive metros in the set is a few thousand dollars on a $20,000 job, because only the labor half of the bill moves. Changing bathrooms changes the per-square-foot figure by a factor of 7. Changing cities changes it by about a fifth. Any published “national average cost per square foot” is therefore describing an average room size far more than it is describing an average price. The full derivation is on the methodology page, and the cost calculator applies the same factors to a specific project and metro.

When the Per-Square-Foot Figure Is Safe to Use

There is one job it does well, and it is a genuinely useful one.

Safe: comparing two bids on the same room. Floor area is held constant, so it cancels out, and the per-square-foot figure becomes a clean comparison of scope and finish level. Two quotes on the same 40 square foot bathroom at $350 and $600 per square foot are telling you something real — one of them is doing more, specifying better, or charging more. Ask which.

Safe: sanity-checking a bid against the range for that size. If a 5×8 bathroom is quoted at $900 per square foot, the table above says that is $36,000 on a project whose aggregated high-end is $30,000. That is not automatically wrong — it may be a relocated layout, a steam shower, or stone slab walls — but it is a number that deserves a line-item breakdown behind it.

Broken: budgeting a different-sized room. This is the failure that costs real money. A per-square-foot figure carries the fixture cost of the room it came from. Take the $200 per square foot from a 100 square foot primary bath, apply it to a 40 square foot hall bath, and it predicts $8,000 for a room that aggregated data puts at $20,000 — a shortfall of $12,000, arriving as a surprise mid-project.

Broken: pricing an addition or a bump-out. The average says $500 per square foot; the marginal cost of the added floor is $25 to $60 per square foot, plus whatever the walls and the plumbing cost to move. Neither the average nor the marginal figure alone describes the job.

Broken: comparing a half bath to a full bath. Different fixture counts, same metric, meaningless comparison.

The rule that survives all of it: a bathroom is priced per fixture and per scope, then reported per square foot. Anyone quoting the number in the other direction — starting from a rate and multiplying by area — is producing an estimate whose error grows the further the room is from the one the rate came from.

What Moves a Bathroom Budget More Than Area Does

Ranked by how far they move the total, with aggregated figures:

  1. Moving the plumbing. Relocating a toilet, tub or shower means opening the floor and re-running drain and vent. Rough-in plumbing is $1,500 to $5,000, and a slab foundation adds saw-cutting and patching on top. Keeping every fixture where it is, is the single largest cost lever in the room — larger than any material choice.
  2. Tub, shower, or both. A bathtub replacement runs $1,500 to $8,000; a walk-in shower $4,000 to $20,000; a tub-to-shower conversion $3,000 to $10,000. Keeping both, in a primary bath, means paying for two wet enclosures — two valves, two drains, two waterproofed assemblies.
  3. Tile height and coverage. Floor only, floor plus tub surround, or floor plus full-height walls. Each step adds tiled surface at roughly $23 per square foot installed, and full-height wall tile in a 5×8 bathroom can add over 100 square feet of surface — several thousand dollars, on the one line that genuinely does scale with area.
  4. The shower enclosure. A shower door ranges from $400 for a framed unit to $3,000 for heavy frameless glass — a $2,600 swing on a single object with no square footage of its own.
  5. The vanity. Vanity replacement runs $500 to $3,000. A double vanity adds a second sink and a second rough-in group.
  6. What is behind the wall. Rot at the base of a tub, a failed pan, or a soft subfloor is not visible until demolition day. Shower pan replacement is $500 to $3,500 and subfloor replacement with the floor open is $3 to $10 per square foot of decking, plus $150 to $325 per joist sistered — $2,000 to $5,000 once the rot covers the room and its joists. Aggregated practice is a 10 to 20 percent contingency on a gut remodel for exactly this reason.
  7. Fixture grade. The same toilet slot takes a $200 unit or a $700 one; the same valve slot takes a $200 valve or a $900 one. Grade moves the materials half of the bill, which is only about 30 percent of the total.
  8. Permits and code. A full remodel typically requires a permit, and the International Residential Code sets minimum clearances — including at least 30 inches by 30 inches of shower floor and 21 inches of clear space in front of a toilet or lavatory. In a small bathroom, code minimums, not taste, often decide the layout.

Demolition, Permits and the Costs Nobody Puts in the Square Footage

These are the lines a square-foot rate leaves out. They behave like the fixture column — mostly fixed, largely indifferent to how big the room is. The biggest is the tear-out itself: taking a 40 to 60 square foot full bath back to studs and subfloor, haul-away included, costs $650 to $3,500 and typically $1,500, roughly three quarters of it labor — itemized by fixture and by debris route in bathroom demolition cost.

LineAggregated costDoes it scale with area?
Full gut demolition, haul-away included$650–$3,500 (typically $1,500)Barely — a 40 and a 60 sq ft gut are each about a day for a crew
Tile removal$320–$1,120Partly — but a bathroom is a day’s work at either size
Floor removal$100–$600 for a bathroom-sized floorPartly
Subfloor replacement$3–$10/sq ft decking; $2,000–$5,000 whole floor with joistsPartly — only where the rot is
PermitFlat feeNo
Dumpster and disposalFlat, per containerNo — a gutted bathroom is well under one container either way
Material waste allowance10–15% of tileYes — and proportionally worse in a small room, where cuts are denser

A gutted 40 square foot bathroom and a gutted 80 square foot bathroom produce different volumes of debris, but not different containers — and the disposal fee is per container. The permit fee is the same document. The demolition crew shows up for a day either way. Every one of these lines dilutes as the room grows, which is one more reason the per-square-foot figure keeps falling.

The waste allowance is the only line here that runs the other way. Aggregated practice is to order 10 to 15 percent extra tile for cuts and breakage, and small bathrooms need the top of that band because so many tiles are cut. On a $1,200 floor that is $120 to $180, and running short mid-job on a discontinued dye lot is the reason the allowance exists.

Does the Schedule Scale With Area Either? No

Duration behaves exactly like cost, which is the strongest confirmation that fixtures, not floor area, are what a bathroom is made of.

ProjectAggregated typical duration
Half bath remodel1–2 weeks
Small bathroom remodel2–3 weeks
Full bathroom remodel2–4 weeks
Walk-in shower installation1–2 weeks
Bathtub replacement1–3 days
Toilet installation1–2 hours

A 40 square foot bathroom and a 100 square foot bathroom take the same 2 to 4 weeks, because the schedule is a chain of trade visits — demo, rough-in, inspection, waterproofing, tile, cure time, glass templating, glass install, paint, punch — and each link is a mobilisation, not an area. Thinset and grout cure at the same rate in both rooms; glass takes the same 1 to 2 weeks to fabricate. Tile setting is the only step that genuinely stretches with the floor, and it stretches by a day or two.

The practical consequence is a cost the square-foot metric never shows: a household without a second bathroom is out of a bathroom for the same 2 to 4 weeks either way.

DIY vs. Pro, Measured Against the Split

Labor is roughly $12,000 of the typical $20,000 remodel, so DIY looks like the biggest lever on the page. It is not evenly distributed.

ScopeAggregated laborAggregated materialsRealistic to self-perform?
Demolition (full gut to the studs)$500–$2,850$150–$650 disposal and site materialsThe most commonly self-performed step
Plumbing rough-in$1,100–$3,500$300–$1,200Permit and inspection territory; drain slope and venting are code-governed
Tile setting$900–$3,800$500–$3,000Skill-dependent; waterproofing failures surface years later
Vanity and sink$250–$1,300 / $200–$850$200–$1,500 / $50–$550Straightforward on an existing rough-in
Toilet set$100–$350$100–$400Straightforward on an existing flange
Shower valve$150–$550$20–$350Opens a wall; soldering behind finished tile
Paint and trimIncluded in finishesLowStraightforward

The pattern in the labor column is that the cheap-to-hire lines are the easy ones and the expensive-to-hire lines are the ones tied to a permit or to waterproofing. A vanity swap ($250 to $1,300 of labor), a sink ($200 to $850) and a toilet set ($100 to $350) — the genuinely accessible tasks — carry roughly $550 to $2,500 of labor between them on a job with $12,000 of it. Self-performing them is a real saving, and it is a fraction of the labor half.

The two lines that hold most of the labor money — rough-in and tile with its waterproofing — are also the two whose failures are invisible until they are expensive. A tile job that fails is not a tile job; it is a subfloor repair at $350 to $5,000, from a patch to the whole floor with joist work, plus the tile again. That asymmetry, not the hourly rate, is what the DIY arithmetic turns on. The full breakdown of what a bathroom’s labor bill is made of sits in the rough-in plumbing costs and bathroom tile pages.

The Cheaper Path: Not Everything Needs a Gut

The per-square-foot framing pushes homeowners toward whole-room thinking, and whole-room thinking is what makes a bathroom cost $20,000. The aggregated data on partial work says otherwise:

ScopeAggregated costTypical
Shower regrouting$300–$2,000$800
Shower valve replacement$200–$900$425
Toilet installation$200–$700$400
Vanity replacement$500–$3,000$1,500
Shower door installation$400–$3,000$1,000
Tile shower installation$1,200–$7,000$2,700
Shower remodel (shower only)$1,500–$15,000$5,000
Small bathroom remodel$3,000–$15,000$9,000
Full bathroom remodel$10,000–$30,000$20,000

A new vanity, a new toilet, a regrouted shower and paint — roughly $3,000 to $5,000 at typical aggregated pricing — changes what the room looks like without touching a single drain. The step from that to a gut is not driven by square footage; it is driven by whether the layout moves and whether the wet areas are opened.

Questions

How much does a bathroom remodel cost per square foot?
Based on aggregated data, a full bathroom remodel runs $10,000 to $30,000, and dividing that by real room sizes produces $65 to $855 per square foot. A typical $20,000 remodel works out to about $570 per square foot in a 35 square foot bathroom and about $200 per square foot in a 100 square foot one. The per-square-foot figure is arithmetic performed after the fact, not a rate a contractor charges.
Why is the per-square-foot cost higher in a small bathroom?
Because most of a bathroom's budget does not scale with floor area. The toilet, sink, vanity, tub or shower, mixing valve, exhaust fan and plumbing rough-in cost the same in a 35 square foot room as in a 70 square foot one. Aggregated data puts the fixture and rough-in work alone near $9,500 at mid-range pricing. Spreading a mostly fixed cost across fewer square feet raises the per-square-foot result, which is why the figure falls as the room grows.
What is the average cost per square foot to remodel a small bathroom?
A small bathroom remodel runs $3,000 to $15,000 based on aggregated data, and a small full bath is typically 35 to 40 square feet. That works out to roughly $75 to $430 per square foot, with a typical $9,000 project landing near $225 per square foot at 40 square feet. The band is wide because room size barely moves the bill.
What is the cost per square foot for a master bathroom remodel?
A primary bathroom is typically 100 to 150 square feet. Applying the aggregated $10,000 to $30,000 full-remodel range gives roughly $65 to $300 per square foot — the lowest per-square-foot figures of any bathroom, despite these being the most expensive rooms to remodel in absolute dollars. Primary suites often add a second sink, a separate tub and shower, and more tiled wall area, which pushes the total toward and past the top of the range.
Which parts of a bathroom remodel are actually priced per square foot?
Four lines are genuinely area-driven: floor tile, wall and shower tile, waterproofing membrane, and drywall and paint. Aggregated data puts floor tile in a small bathroom at $17 to $30 per square foot installed, well above the $10 to $14 a large open floor commands, because the price is driven by cut density rather than area. Everything else in the room — fixtures, valves, rough-in plumbing, electrical, the exhaust fan, the vanity — is priced per item.
What does an extra square foot of bathroom actually cost?
Far less than the average. Enlarging a bathroom from 40 to 60 square feet adds 20 square feet of floor tile, a little more wall and drywall, and no additional fixtures. At $17 to $30 per square foot for tile plus drywall and paint, aggregated data puts the added work near $500 to $1,200, or roughly $25 to $60 per added square foot — not the $500 per square foot the room's average implies.
When is a per-square-foot figure useful for a bathroom?
It is reliable for comparing two bids on the same room, where floor area is held constant and the figure becomes a clean scope-and-finish comparison. It breaks down when it is transferred between rooms of different sizes, because it carries the fixture cost of the original room with it. Applying a 100 square foot bathroom's $200 per square foot to a 40 square foot bathroom predicts $8,000 against an aggregated typical of $20,000.
How much of a bathroom remodel is labor?
Based on aggregated data, a $20,000 full bathroom remodel splits into roughly $6,000 of materials and $12,000 of labor, with the two bands compiled separately from the $20,000 total. Labor is close to 60 percent of the bill, which is why the same remodel varies by metro: labor adjustment factors measured from BLS wage data range from 0.85 in San Antonio to 1.33 in Chicago.

Related Bathroom guides

How the scale is built

Base ranges

Metro adjustment

Labor adjustment factors are measured from BLS metropolitan wage data: the median ratio of local to national hourly wages across the ten trades this site prices.

Drawing rules

Every chart on a page shares one axis unless its caption says otherwise. Bars are drawn from zero and are never truncated. Full method →

Last updated: October 2026

Estimates, not quotes. These cost estimates are based on aggregated data from public sources. Actual costs vary by project scope, contractor, and local conditions. Always obtain multiple written quotes from licensed professionals. This site sells nothing, lists no contractors and takes no payment for placement. Methodology →

Cost data last updated: October 2026