Our Top Picks
For a deep soak, choose an acrylic freestanding tub with a reclined back and a stated water depth of around 15 inches or more, such as the MAAX Delsia, if you want a statement piece that retains warmth reasonably well; pick a drop-in or alcove soaking tub from a maker like Kohler if you are replacing an existing tub in a standard bathroom; and consider a budget freestanding acrylic model if you want the look for less. Tub choice depends on your floor plan, floor strength, plumbing, and how you like to sit in the water.
Soaking Tubs at a Glance
| Option | Best for | Details reported by makers and reviewers | Limits |
|---|---|---|---|
| MAAX Delsia (freestanding acrylic) | Midrange freestanding soaking | Retail listings show a glossy two-piece acrylic design in 60 inch and 66 inch lengths with a water depth of about 15.5 inches and a centre drain | Needs floor space and a plumbing plan for a centre drain |
| MAAX Brioso, Soca, Calinda and similar freestanding tubs | Choice of shapes in the same brand | The maker’s freestanding range includes several oval and sculpted styles | Sizes and depths differ; compare the spec sheets |
| Kohler Stargaze (freestanding acrylic) | Premium design | A 2026 roundup describes a 66 inch centre-drain acrylic tub; the same source notes a gloss finish that can scratch more easily and lower heat retention than stone resin | Premium tier; roundup source is not an independent test |
| Kohler Underscore, Entity and Archer (alcove or drop-in soaking) | Replacing a standard bathtub | These Kohler lines are sold mainly as alcove or drop-in soaking tubs | Needs surround or deck; confirm dimensions and drain position |
| Woodbridge and Empava freestanding acrylic | Budget freestanding looks | Value picks in a 2026 guide; Empava is listed for deep soaking | Finish and warranty vary; read the maker’s specification carefully |
Specifications change by year and finish, so use the table as a comparison framework and rely on the maker’s current data sheet for exact measurements. Several roundups come from sellers or brand blogs, so independent lab testing of soaking tubs is thin.
Portable Bathtub for Adult, Foldable Soaking Bathtub for Hot SPA&Ice Bath, Foldable Small Bathtub collapsible bathtub for Bathing, 6-layer Insulated portable tub,Space-Saving (black 41.3X26.6 IN)
Chosen because it specifies Foldable Soaking Bathtub for Hot SPA&Ice Bath and Foldable Small Bathtub collapsible bathtub for Bathing.
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Portable Bathtub for Adult, Foldable Soaking Bathtub for Hot SPA&Ice Bath, Foldable Small Bathtub collapsible bathtub for Bathing, 6-layer Insulated portable tub,Space-Saving (Lotus, 27.5X26.6 IN)
Chosen because it specifies Foldable Soaking Bathtub for Hot SPA&Ice Bath and Foldable Small Bathtub collapsible bathtub for Bathing.
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Serenelife 59" Portable Bathtub for Adults – Large Foldable Ice Bath Tub for Cold Plunge & Hot Spa, Freestanding Soaking Tub for Indoor/Outdoor, Athlete Recovery & Family Use, 440lbs Capacity
Chosen because it specifies Large Foldable Ice Bath Tub for Cold Plunge & Hot Spa and Freestanding Soaking Tub for Indoor/Outdoor.
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59" Acrylic Freestanding Bathtub, Deep Soaking Tub, High Back | Ergonomic high backrest for ultimate neck support, non-slip base, cUPC certified modern bathroom tub with chrome drain.
Chosen because it specifies Deep Soaking Tub and High Back.
View on AmazonWhat Makes a Tub Good for Soaking
Water depth and overflow
Soaking tubs are defined by depth. A depth of about 14 to 16 inches to the overflow is typical for deeper models, but the usable depth depends on where the overflow sits. A deeper tub holds more water, which takes longer to fill and heat, so check the capacity against your water heater’s output.
Material
- Acrylic: lightweight, available in many shapes, and comfortable to touch. Roundups describe it as retaining heat better than enamelled steel or cast iron, though one source notes it holds less heat than stone resin. Gloss finishes can scratch if cleaned with abrasive products.
- Cast iron: heavy and durable, with an enamel finish. It retains heat but requires strong floor support.
- Stone resin and solid surface: reported to keep warmth well and feel solid, but heavy and often at higher price tiers.
- Enamelled steel: the lowest cost, but typically cooler to the touch and less insulating.
Shape and comfort
Reclined, sloped backs and rounded ends are more comfortable for long soaks than straight, boxy interiors. Measure your height and shoulder width, and sit in a showroom tub if you can. A tub designed with a shaped neck rest and slope allows you to lie back rather than sit upright.
Freestanding vs alcove vs drop-in
| Style | Pros | Cons |
|---|---|---|
| Freestanding | Visual impact, flexible placement, easier cleaning around | Needs open floor space; plumbing and floor-mounted fillers can be complex |
| Alcove | Fits standard three-wall openings, simple replacement | Limited shapes; one finished side |
| Drop-in | Built into a deck or surround for a custom look | Needs a built platform and more installation work |
Weight, floors and installation
A full tub plus bather is heavy. Freestanding tubs often need a floor check, especially on upper levels, and cast iron or stone resin models are heavier still. A qualified plumber and, where needed, a structural professional should confirm the floor, drain location, water supply, and local codes before purchase. Follow the manufacturer’s installation manual closely. Freestanding tubs need a tub filler that matches the design, or a wall-mounted or floor-mounted faucet.
Drain and overflow
Many freestanding tubs, including the MAAX Delsia, have centre drains. Check whether a drain and overflow are included, and whether your plumbing can connect to the drain position the tub requires.
Budget Tiers
| Tier | Typical choices | Trade-off |
|---|---|---|
| Budget | Woodbridge, Empava and similar acrylic freestanding tubs | Lower cost for the look; finish and long-term service can vary |
| Mid-range | MAAX freestanding acrylic, Kohler alcove soakers | Established makers, defined spec sheets |
| Premium | Kohler Stargaze-type designer tubs, stone resin and cast iron | Style and heat retention rise, but so does weight and installation cost |
Pick X If… Decision Table
| Pick this | If you… |
|---|---|
| MAAX Delsia or similar acrylic freestanding | want a soaking tub with a design look at a mid-range level |
| Kohler alcove or drop-in soaker | are replacing a standard bathtub and want a deep soak |
| Stone resin or cast iron | want maximum heat retention and have a strong floor |
| Budget acrylic freestanding | want the look with fewer upfront costs |
| Corner or oversized soaker | have a larger bathroom and want room for two |
Alternatives
- Japanese-style deep soaking tubs: compact and tall rather than long, popular in small bathrooms. Check height against the room’s access and your ability to step in and out.
- Whirlpool or air-jet tubs: add jets but need electrical supply and regular cleaning of the plumbing lines. Electrical work should be carried out by a licensed electrician.
- Walk-in tubs: a door design that suits reduced mobility. Consult a medical professional or occupational therapist if mobility is a concern.
Care and Safety
- Clean acrylic with non-abrasive products, as the maker recommends, to protect the finish.
- Wet tubs are slippery. Use a bath mat in the tub and grab bars where appropriate.
- Do not exceed recommended water temperatures. Very hot baths are not advisable for everyone, and anyone with heart conditions, pregnancy or other health concerns should ask a doctor about hot soaking.
- Never leave children unattended in the tub.
Sizing a Soaking Tub for Your Bathroom
Common lengths for soaking tubs run from about 60 inches, which suits compact rooms, to 66 inches or more for taller bathers. The MAAX Delsia, for example, is listed in 60 by 32 inch and 66 by 36 inch sizes in retail listings. Measure the room, then add clear space around a freestanding tub for cleaning and for getting in and out. Many designers suggest leaving a few inches to a foot between the tub and walls, and more if you plan a floor-mounted faucet. Do not forget the door swing, window positions, and the route the tub must take through the house during delivery.
Planning Checklist Before You Buy
- Confirm the drain position and whether your plumbing allows a centre drain.
- Check the water heater capacity against the tub volume if you like full, deep baths.
- Choose a faucet designed for the tub style and rim thickness.
- Ask a plumber about local code requirements, including overflow and trap rules.
- Read the warranty for what is covered, including finish and installation conditions.
- Consider how the tub will be cleaned, especially behind and beneath a freestanding model.
Soaking Habits and Comfort
Some bathers prefer a long, gently sloped tub for lying back, while others like a shorter, deeper tub that lets them sit upright with water at the shoulders. Think about who will use the tub. A tall bather may want extra length, and a household with smaller adults may prefer a depth that covers the shoulders without too much water. Bath temperature is a personal preference, but very hot water is not advisable for everyone, and anyone with a health condition should ask a doctor for personal advice.
Frequently Asked Questions
What is the best material for a soaking tub?
It depends on your priorities. Acrylic is lightweight and available in many shapes, while stone resin and cast iron are reported to retain heat longer but are much heavier. Check your floor strength and budget before deciding.
How deep should a soaking tub be?
Soaking tubs often have a stated water depth of about 14 to 16 inches or more. The MAAX Delsia, for instance, lists roughly 15.5 inches according to retail listings. Look at the maker’s depth to overflow rather than the overall height of the tub.
Do freestanding tubs need special plumbing?
Often yes. Many have centre drains and need a floor-mounted or wall-mounted faucet. A licensed plumber should confirm the layout and local code requirements.
Will my floor support a freestanding tub?
Filled weight can be significant, especially with cast iron or stone resin. A structural professional or the tub maker can advise about the floor load. This matters most for upper floors and older homes.
Is acrylic good at keeping bathwater warm?
Reviewers and guides describe acrylic as better than thin steel at holding heat but not as good as heavier stone resin or cast iron. A deeper tub and a pre-warmed bathroom also help. A larger water volume cools more slowly.
How do I keep an acrylic tub looking new?
Use mild, non-abrasive cleaners and a soft cloth, and rinse after each use. Avoid scouring pads and harsh chemicals that can dull or scratch the gloss. Follow the manufacturer’s care instructions to protect the warranty.
