How To Select Bathtub Size For Hotel And Apartment Projects
Selecting the right standard bathtub size is a decision that echoes through an entire project: it determines the bathroom layout, the plumbing rough-in, the shipping volume and ultimately guest satisfaction. Choose a hotel bathtub size that is too large and you sacrifice circulation space and pay for water volume in every room; too small and reviews mention "cramped tub" for years. This guide explains the common bathtub dimensions used in commercial projects, how to match them to apartment bathroom layouts and hotel star ratings, and what to confirm with your manufacturer before ordering in bulk.
The Standard Size Ranges That Matter
Most commercial bathroom planning starts from a few widely used size bands:
| Type | Length | Width | Height / Depth | Typical application |
|---|---|---|---|---|
| Compact built-in | 1400–1500 mm | 700 mm | 550 mm | Small apartments, budget hotels |
| Standard built-in | 1500–1700 mm | 700–750 mm | 550 mm | Mid-scale hotels, family apartments |
| Full built-in | 1700–1800 mm | 750–800 mm | 550 mm | Upper-mid hotels, master bathrooms |
| Freestanding | 1500–1700 mm | 750–800 mm | 560–580 mm | Boutique hotels, premium apartments |
| Skirt (alcove) | 1500–1700 mm | 700–800 mm | 550 mm | Hotels and apartments with three-wall niches |
A few planning notes for these bathtub dimensions:
- Length drives the plumbing plan. The drain end position (left or right, and distance from the wall) must match the rough-in before the floor is poured. Changing tub length after rough-in is a costly rework.
- Width determines clearance. Building codes and hotel brand standards typically require 600–900 mm of clearance in front of the tub; width also affects whether a glass screen or shower curtain fits.
- Depth matters more than guests notice. A 550 mm built-in depth suits most bathers; a 560–580 mm freestanding depth delivers the deeper soak experience that premium listings advertise.
Matching Size to Project Type
Hotels
For mid-scale hotel chains, a 1500–1700 × 700–750 mm built-in tub over a shower is the dominant configuration because it serves both bath and shower use in a compact footprint. Boutique and four-star properties increasingly specify freestanding tubs at 1600–1700 mm with 750–800 mm width, positioned as the visual centerpiece of the room. Economy properties usually skip bathtubs entirely in favor of shower trays — but where a tub is included, the compact 1400–1500 mm range keeps the bathroom viable.
Apartments
Apartment bathroom layout logic is stricter: the tub must coexist with a toilet, basin and often a washing machine within 4–6 square meters. The reliable choices are:
- 1500 × 700 mm built-in for compact one-bedroom units.
- 1600–1700 × 700–750 mm built-in for two- and three-bedroom family units.
- 1600–1700 × 750–800 mm freestanding where the master bathroom exceeds roughly 6 square meters and the developer wants a marketing differentiator.
For apartment projects with hundreds of repeated units, standardizing on one or two sizes maximizes purchasing volume per SKU and simplifies maintenance stocking for property managers.
Skirt Bathtubs for Fast Installation
In renovation and hotel-refurbishment programs, skirt bathtubs (installed against three walls with a left- or right-hand apron) simplify both the install and future maintenance. Specifying left or right skirt per room type is one detail worth locking into the room schedule early — mixed orientations on site are a common source of installation delays.
Practical Checks Before You Order in Bulk
- Draw the bathroom at true scale with the tub, clearances, door swing and towel rails. A tub that "fits" on a spreadsheet often fails at the door swing.
- Fix the drain orientation and rough-in dimensions per room type and communicate them to the manufacturer — our built-in and skirt models can be produced with drain positions matched to your plumbing plan.
- Check the door and corridor dimensions. A 1700 mm tub must physically reach the bathroom through the unit door and corridor turns; this constraint surprises crews on tight urban renovations.
- Calculate the water heating load. A larger freestanding tub at 580 mm depth uses noticeably more hot water per fill; verify the property's water heater capacity for simultaneous fills in multiple rooms.
- Confirm shipping volume early. Standard 20GP/40GP loading depends heavily on tub dimensions and packing design. We optimize palletized packing for container loading, which directly affects your landed cost per unit — request the packing drawing before confirming sizes.
Why Work with a Factory That Offers Custom Sizing
Catalog sizes cover most projects, but developers with a signature bathroom design often need a specific length or depth. As a direct factory in Xuancheng, China, YUNCCI produces freestanding tubs in 1500/1600/1700 × 750–800 × 560–580 mm, built-in models in 1500–1800 mm, and supports custom size, color and logo through OEM/ODM. For large projects, new mold development is available with mold fees negotiable against order volume — meaning a differentiated bathroom package does not have to mean unaffordable tooling. Our monthly capacity of 8,000+ bathtubs, four vacuum forming lines and 100% factory water testing keep large repeated orders on schedule. You can compare specific models in our freestanding acrylic bathtub and built-in simple bathtub ranges, or review project supply options.
Summary
- Standard bathtub size bands are compact 1400–1500 mm, standard 1500–1700 mm and full 1700–1800 mm for built-ins; freestanding models run 1500–1700 × 750–800 × 560–580 mm.
- Match hotel bathtub size to star rating: built-ins for mid-scale hotels, freestanding tubs for boutique and premium segments.
- For apartment bathroom layouts, standardize on one or two sizes to maximize purchasing volume and simplify maintenance.
- Lock drain orientation, rough-in dimensions and door/corridor access into the plan before ordering.
- Confirm container loading drawings with the factory — packing design affects landed cost per unit as much as the unit price.
Ready to source? Contact us for FOB quotation and product catalog. Email [email protected] or WhatsApp +86 195 6415 0915. Xuancheng Yunchi Technology supports custom bathtub dimensions, CE / CUPC / WaterMark supported production and optimized 20GP/40GP loading for project buyers worldwide. Visit https://www.yuncci.com.