A freestanding bathtub is the single most visible specification in a hotel or high-end residential bathroom — and the easiest one to get wrong. The specification that works is the one that matches the room's dimensions, the plumbing position and the daily traffic the bathroom will actually see.

This guide is written for buyers specifying freestanding bathtubs in volume: importers, distributors, developers, contractors and hospitality projects. It covers materials, sizes, filler planning and the commercial points that decide your landed cost.

Key takeaways

• Acrylic is the volume material; solid surface is the premium one. Acrylic gives the best cost-to-weight ratio and the widest size range. Solid surface (stone resin) adds rigidity and a matte stone look at a higher unit price.
• Size for the body, not the catalogue. A 1700 mm tub suits most adults; 1500–1600 mm suits compact bathrooms and second bathrooms.
• Plan the filler first. A floor-mounted or deck-mounted filler, and its hot/cold positions, must be decided before the tub is ordered.
• Freestanding tubs are shipped by volume, not weight. Container loading per model drives your freight cost more than the ex-works price.
• Confirm approvals. cUPC, CE and WaterMark documentation for the tub and drain assembly avoids customs and inspection problems in the US, EU and Australia.

1. Freestanding vs built-in vs drop-in

Type	Description	Best for	Trade-offs
Freestanding	Fully self-supporting, finished on all sides	Feature bathrooms, hotel suites, luxury residential	Needs floor space on all sides and accessible plumbing
Built-in	Set into a masonry or timber surround	Compact bathrooms; tiled-in look	Surround must be built and tiled — more site labour
Drop-in	Dropped into a pre-cut countertop or deck	Standardised apartment bathrooms	Deck edge detail shows wear; less flexible on size
Corner / compact	Angled or shortened tub for tight layouts	Small apartments, second bathrooms	Limited seating comfort for taller users

For hospitality work the freestanding tub usually wins on design impact and installation speed — there is no surround to build. The trade-off is that the floor and wall finishes behind and beside the tub have to be finished properly, because all sides stay visible.

2. Materials compared

Material	Feel and look	Weight	Cost	Best for
Acrylic (reinforced with fibreglass)	Warm to the touch, high-gloss, seamless	Light (approx. 40–70 kg)	Lowest to mid	Volume ranges, apartments, hotels
Solid surface / stone resin	Matte, stone-like, repairable surface	Heavy (approx. 90–150 kg)	Premium	Luxury residential, boutique hotels
Fibreglass	Similar to acrylic but thinner shell	Light	Lowest	Budget and contract ranges
Cast iron with enamel	Very solid, retains heat longer	Very heavy (150 kg+)	High	Traditional residential
Natural stone / marble	Unique veining, extremely heavy	Very heavy	Highest	Signature projects only

Acrylic remains the right default for most wholesale programmes: the shell is warm to the touch, the surface is easy to clean, and the low weight keeps freight and handling manageable. Solid surface is the natural step up for hospitality and high-end residential work, where the matte finish and repairability justify the higher unit price. As a reference from our current range, this solid surface freestanding bathtub (R-8759) is specified for hotel projects at 1500×1270×560 mm and is available with optional underwater light, filtration and ozone functions.

3. Sizes and shapes

Freestanding tubs are quoted as length × width × height. Length is the number that matters to the end user; width matters to the room layout, because a freestanding tub needs working clearance on at least one long side.

Length	Typical width	Suits	Notes
1400–1500 mm	700–750 mm	Compact and second bathrooms, kids' use	Check the internal length — the shell wall eats 80–120 mm
1600–1650 mm	750–800 mm	Standard residential and hotel bathrooms	Comfortable for most adults
1700–1800 mm	800–850 mm	Master bathrooms, suites	The most popular premium size worldwide
1700–1900 mm (oval/boat)	850–900 mm	Design-led installations	Boat and oval shapes free up floor clearance

Shapes follow the room. Rectangular tubs maximise the usable bathing area and suit alcoves; oval and boat-shaped tubs soften the layout and use less visual space; back-to-wall models sit flush against a wall and save depth without losing length. For two-person specification, a whirlpool or spa model is the usual choice — see this hotel whirlpool and massage tub as an example of that configuration.

4. Filler and plumbing planning

This is the step buyers most often leave too late. Decide it before the tub is ordered:

• Filler position. A floor-mounted freestanding filler is the cleanest solution and needs a hot and cold supply plus waste stubbed up through the floor at the correct offset from the tub rim. A deck-mounted filler needs a pre-drilled tub; a wall-mounted filler needs a wall close enough to reach the tub.
• Waste and overflow. Confirm whether the model uses a centre drain or a side/offset drain, and whether the waste kit is included in the price. Return the drain position to your contractor before the floor screed goes in.
• Access. Leave a service route to the filler and to the drain trap. Once a freestanding tub is set, moving it again usually means damaging the floor finish.
• Water capacity. A larger tub needs more hot water. Check the capacity against the building's hot-water design so the tub does not exceed the available supply — this matters most in hotels with central hot-water systems.

If your project includes a shower over or beside the tub, the faucets and shower systems buying guide covers the thermostatic and pressure-balance valve options that pair with these installations.

5. Whirlpool, air-jet and spa options

Massage functions change both the specification and the shipment. Air-jet systems blow air through the base and are easier to drain; whirlpool (hydromassage) systems circulate water through jets and pumps and give a stronger massage. Typical upgrade options on project tubs include underwater lighting, bubble bath, filtration and ozone sanitising, and occasionally audio and Bluetooth. Each added function adds components, cable routing and a maintenance path — so specify them deliberately, and confirm the electrical requirements for your market at quotation stage.

6. Wholesale and project supply

1. MOQ. Low minimums on standard models let you validate a market before committing to a container. On the current Aqua Gallery bath lines, sample orders start from 1 set.
2. Container loading. Loading quantity is quoted per model because tub shapes nest differently. As an example, the R-8759 solid surface tub loads 4 sets per 20GP, 9 sets per 40GP and 11 sets per 40HQ. Get this number before you calculate landed cost.
3. Lead time. From the same current line, production runs around 40–45 days for a 1×40ft container, 30–35 days for 1×20ft, and 10–15 days for a single sample. Plan stock against the container cycle.
4. Customisation. Size, colour, drain position and function set can be customised on OEM and ODM terms, which is how distributors build a range that is not identical to a competitor's.
5. Warranty and approvals. Current bath lines carry a limited lifetime warranty, and the wider range is produced under cUPC, CE and WaterMark certified processes. Documentation is listed on our certificates page.

7. Installation and care

• Support the base across its full footprint. Acrylic shells need a level, continuous floor or a matching support frame — point-loading under the base causes cracks.
• Bed the tub in, do not force it. If the tub does not sit flat, correct the floor rather than tightening the waste connection to pull it down.
• Manoeuvre freestanding tubs by the frame or with a trolley, never by the rim or the overflow cut-out.
• Clean with a soft cloth and mild soap. Abrasive powders, acetone-based solvents and acidic descalers dull the surface and are excluded from most warranties.
• On whirlpool tubs, run the pump and drain the system after each period of use to prevent residual water standing in the pipework.

8. Frequently asked questions

Acrylic or solid surface — which should I specify?
Acrylic for volume residential, apartment and standard hotel bathrooms, where cost, weight and size range matter most. Solid surface for luxury residential and boutique hospitality projects, where the matte stone appearance, rigidity and repairability justify a higher unit price.

What is the most popular freestanding bathtub size?
1700 – 1800 mm long by 800–850 mm wide is the most widely specified premium size. 1500–1600 mm models are the standard choice for compact and second bathrooms.

How much space does a freestanding bathtub need?
Allow working clearance on at least one long side for cleaning and servicing, and enough room for the filler position. Measure the room's usable floor area after tiling and remember that oval and boat-shaped tubs use the available space more efficiently than rectangles.

Does a freestanding bathtub need a special floor?
It needs a level, structurally sound floor. Acrylic tubs are relatively light, but solid surface and cast iron models are heavy, and a filled tub adds several hundred kilograms. On timber floors, confirm the joist loading and spread the load across the base.

Can I customise the size and colour?
Yes. Size, colour, drain position and function options can be produced to order on OEM and ODM terms, so it is worth returning your project dimensions and finish schedule before ordering.

How many bathtubs fit in a container?
It depends entirely on the model and shape. Ask your supplier for the 20GP / 40GP / 40HQ loading quantity for the exact model at quotation stage, because the difference between models is often several sets per container.

Next step: request a bathtub quotation

Aqua Gallery manufactures freestanding bathtubs, solid surface tubs, whirlpool and massage tubs and outdoor spas in Foshan, China, for importers, distributors, developers and hotel projects. Send us the length you need, the material you prefer and your destination market, and we will come back with a specification, MOQ, container loading and lead time.

Contact our export team through the contact page, or browse the full bathtub range and the wider showers, tubs and panels collection.

Related reading: Luxury Meets Comfort: Bathtubs That Help You Recharge and Bathroom Vanity Wholesale: MOQ, Pricing & Factory Guide for Importers.