A flange bath is a type of bath or shower tray that is installed level with the floor, rather than raised up on legs. Flange baths create a minimalist, contemporary look and take up less visual space in a bathroom. They are also known as flush baths or flush shower trays.
What Does a Flange Bath Look Like?
A flange bath is a rectangular or square tray that sits directly on the floor. The edges extend out slightly to create a flange that runs around the perimeter of the bath. This flange allows the bath to be sealed and watertight where it meets the floor.
The inside of a flange bath is just like a regular bathtub, with sloped sides and a drain. The outside edges are usually about 1-2 inches wide. Flange baths come in a variety of sizes, with lengths typically ranging from 1500mm to 1800mm.
Flange baths are made from materials like acrylic, resin, quartz or cast iron. Acrylic and resin flange baths often have a stone-like finish. Quartz flange baths have an elegant, glossy finish. Cast iron flange baths have an enamel coating over the iron.
How are Flange Baths Installed?
Installing a flange bath takes careful planning and precision. The floor needs to be prepared so that the bath can sit perfectly level. The gap between the bath flange and floor then needs to be waterproofed.
Here are the key steps for installing a flange bath:
- Prepare the installation area – Make sure the floor is clean and level. The floor may need to be chipped or filled to create an even surface.
- Make a recess – A recess slightly wider and longer than the bath needs to be created so the edges of the bath can sit flush with the floor level.
- Waterproof the recess – Waterproofing membrane or tanking material needs to be applied to seal the recess.
- Lower the bath into place – The bath is carefully lowered into the recess and positioned so it is level.
- Connect plumbing – The bath drain and waste pipes are connected.
- Seal the flange – Flexible sealant is applied around the flange to seal it to the floor.
- Tile – Tiles can be laid around the bath up to the flange.
The key to getting a waterproof seal is making sure the gap between the bath flange and floor is completely filled with sealant. The entire installation area must be waterproofed.
The Pros of Flange Baths
Here are some of the benefits that flange baths offer over regular baths:
- Contemporary look – Flange baths create a sleek, minimalist aesthetic. They have clean lines and visual appeal.
- Space saver – Sitting on the floor, flange baths take up less visible space than a bath on a stand. This helps small bathrooms feel more open.
- Easier access – With no rim to step over, it is easier to get in and out of a flange bath.
- Versatility – Flange baths can be used as a shower as well as a bath. Some people even install them as wet rooms.
- Customization – The surrounds can be easily tiled to coordinate with the rest of the bathroom design.
The flush profile of flange baths means they blend into the floor for a sleek, seamless look. Their minimalist style works well in contemporary and modern bathrooms.
The Cons of Flange Baths
There are also a few potential disadvantages with flange baths:
- Tricky installation – Getting the installation right is imperative for a waterproof seal. Any leaks could lead to major floor damage.
- Permanent – They are difficult to remove or replace without re-tiling.
- Limitations – The rectangular shape may not suit more traditional style bathrooms. Built-in seating or reclining areas are not usually possible.
- Added expense – Installation costs are higher compared to drop-in baths. Extensive waterproofing is required.
- Ongoing care – The flange will need periodic resealing to prevent leaks as the floor moves slightly over time.
Flange baths also require a solid, stable floor for installation. They are generally not suitable for upper floors or timber constructions unless reinforcement is added.
Common Uses for Flange Baths
Here are some of the most popular ways flange baths are used in bathrooms:
Spacious Showering
Flange baths create an open, walk-in shower area without the raised step of a regular tub. An overhead shower and hand shower can be installed for comfortable showering.
Bathing & Shower Combo
Serving double duty, flange baths work well for both bathing and showering. The low profile makes stretching out for a soak easy.
Wet Room Style
With full waterproofing, flange baths can be installed to create a wet room. The whole bathroom can then function as the shower area.
Modern Soaking Tub
As a chic contemporary soaking tub, flange baths bring sleek minimalism to bathroom designs. Candles and bath accessories finish the look.
Accessibility & Universal Design
The easy access and walk-in design of flange baths make them ideal for users with mobility considerations. They facilitate aging in place.
Costs of Installing a Flange Bath
Installing a flange bath is a significant project that requires professional installation. Here are the typical costs involved:
| Cost | Price Range |
|---|---|
| Flange bath unit | $300 – $2000 |
| Tile, waterproofing & plumbing supplies | $500 – $1500 |
| Removal of old bath & installation labor | $1000 – $3000 |
| Total Install Cost | $1800 – $6500 |
This gives a ballpark range of $1800 to $6500 to purchase and professionally install a flange bath. The exact cost will depend on the bath chosen, complexity of the install, and labor rates in your area.
Finding the Right Size Flange Bath
Flange baths come in different lengths, widths and depths to suit different spaces. Here are some tips for choosing the right size:
- Measure your bathroom space – Write down the length, width and any slopes, angles or irregularities.
- Consider existing or planned plumbing locations – Try to align the bath drain location.
- Decide on use – Will it be just for showering or both bathing and showering? This affects the ideal size.
- Allow for tiling space – Remember to account for the thickness of your planned wall tiles around the bath perimeter.
- Check access – Make sure there is enough clearance to bring the bath in and lower it into position.
- Browse dimensions – Catalogues will provide the outer flange and inner bath dimensions for different models.
A professional bathroom supplier can help you browse size options and order a custom flange bath to fit your precise space.
Key Considerations for Flange Bath Materials
Flange baths are made from various materials, each with their own pros and cons:
Acrylic
- Pros – Warm feel, molded shapes, color options, scratches can be buffed out.
- Cons – Not as durable as other materials.
Resin & Minerals
- Pros – Very hard wearing and durable, can look like stone.
- Cons – Prone to fading over time, lacks warmth of acrylic.
Quartz
- Pros – Hard, glossy and stylish finish.
- Cons – Higher cost, weighty so may require floor reinforcement.
Cast Iron
- Pros – Strong, durable and keeps water hot for longer.
- Cons – Very heavy, enamel coating can chip over time.
For most flange bath installations, acrylic or resin/mineral composite are good choices. Quartz or cast iron look beautiful but weigh a lot more.
How to Clean & Maintain a Flange Bath
With the bath edges flush to the floor, it is important to take care cleaning a flange bath. Here are some top tips:
- Use a soft cloth and mild detergent – Avoid abrasive cleaners or scourers.
- Rinse thoroughly after cleaning – Residual chemicals can damage the bath surface.
- Immediately wipe spills – Don’t allow soap, shampoo or oils to linger.
- Avoid sitting or standing on the edges – Protect the flange from chips and cracks.
- Reapply sealant when needed – Check the seal for leaks and reseal every few years.
- Consider anti-slip treatment – Etching or grip tape can improve slip resistance in the bath.
With proper care, a flange bath should maintain its flawless finish for many years before needing resurfacing.
Conclusion
Flange baths create a contemporary, minimalist look perfect for modern bathroom designs. The low profile provides an accessible and versatile space for showering and bathing.
However, installing a flange bath takes skill, time and higher costs compared to a regular tub. Ongoing maintenance is also required to keep the flush fit waterproof and prevent leaks.
When professionally installed and cared for, a flange bath can be a beautiful, functional centerpiece for both large and small bathrooms. The seamless, clean lines provide an inviting place to bath, shower and unwind.