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Bathroom cost comparison · model 2026.1
Bathroom Remodel Cost by Square Foot
Evidence note: these are editorial planning comparisons, not observed contractor-bid averages. Project allowances are not necessarily outputs of the calculator formula; compare the defined scope and obtain local written quotes.
Bathroom remodeling does not scale evenly with floor area. A 35-square-foot room still requires fixtures, trade visits, waterproofing, ventilation, and inspections, while larger rooms add tile, cabinetry, glass, lighting, and sometimes more plumbing fixtures.
| Option | Planning cost | Typical duration | Best fit | Main cost drivers |
|---|---|---|---|---|
| Small · 35 sq ft | $15,500–$23,500 | 3–5 weeks | Compact full bathrooms and tightly planned same-layout replacements | Minimum trade charges, tight access, fixture density, detailed cuts |
| Standard · 55 sq ft | $21,500–$32,000 | 3–6 weeks | Typical hall or full bathroom with a standard complete-remodel scope | Wet-area system, vanity, tile, plumbing, electrical, ventilation |
| Large · 85 sq ft | $30,000–$45,000 | 4–7 weeks | Larger full or primary bathrooms with more storage and finish area | Tile quantity, double vanity, glass, lighting, added fixtures |
| Extra large · 120 sq ft | $40,500–$60,000 | 5–9 weeks | Spacious primary bathrooms with multiple fixture zones | Multiple fixtures, extensive finishes, cabinetry, coordination, access |
Why price per square foot can mislead
A toilet, valve, exhaust fan, electrical circuit, permit process, and contractor mobilization do not become proportionally cheaper because the floor is small. Dividing a total by floor area is useful for comparison, but it is not the model used to quote individual trade scopes.
What the size model assumes
These ranges use the RenoCostData full-remodel model with Standard finishes and professional installation. They assume an existing bathroom rather than a new addition and keep extraordinary structural work outside the range.
- Existing bathroom footprint
- Complete fixture and finish replacement
- Professional labor and normal coordination
- Modeled demolition, permit allowance, and contingency
- National coverage before a city adjustment
Use size with scope and finish
Measure finished floor area, then define whether the project is a cosmetic refresh, full remodel, or layout-changing rebuild. A small premium shower room can cost more than a larger standard bathroom, so size should never be the only input.
Sources and model basis
These sources inform the national model and technical context. The project ranges are RenoCostData editorial planning allowances; they are not all generated by the calculator formula and are not prices quoted by the source organizations.