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Decina bathroomware: freestanding, back to wall, island and inset baths, spa baths and fittings

Decina is a bathroomware brand, and the range in stock at the moment is built around baths made from premium sanitary grade acrylic in high gloss white. It covers freestanding, back to wall, island and inset baths, Contour spa baths with jets and a pump, round and oval baths, shower bases, and the wastes, connectors and support frames that go with them.

People search for it as Decina and Decina bathroomware. This page is the guide to the brand, and the tables below set out the sizes and capacities that decide fit. For every bath, see Decina baths, for the jetted baths see Decina spa baths.

What is in the range

Group Pieces Where to see more
Baths Decina Elisi Freestanding Contour Spa Bath 1700mm, Decina Alegra 1400 Back-To-Wall Freestanding Bath with Integrated Overflow, Decina Mintori Contour Freestanding Spa Bath 1790mm, Decina Cosmo 1300mm Freestanding Bath With Integrated Overflow, Decina Oxford 1700mm Back-To-Wall Freestanding Bath with Overflow, Decina Modena Bath, Decina Alegra Contour Back-To-Wall Freestanding Spa Bath 1700mm with Jets, Decina Natalia 1500 Back-To-Wall Corner Bath with Overflow, Decina Bianco Back-to-Wall / Corner Freestanding Bath 1500mm, Decina Natalia 1700 Back-To-Wall Corner Bath with Overflow, Decina Prezzo 1500 Freestanding Bath with Integrated Overflow, Decina Adatto Contour Spa Bath, Decina Bianco Back-to-Wall / Corner Freestanding Bath 1700mm, Decina Fabrino 1675 Inset Bath Decina baths, Decina spa baths
Bathroom Accessories Decina Sia Headrest Curved Sold with the bath or on their own
Wastes Traps Grates Decina Bath Pop-Up Plug with Removable Waste, Decina Flexible Bath Connector with Pop-Up Waste, Decina Bath Pop Down Overflow & Waste Kit Sold with the bath or on their own

Finishes

Decina baths are made in high gloss white acrylic, and a few are also made in matte white. The wastes and connectors are electroplated in chrome. A white bath keeps a bathroom plain and works with any tapware finish, so choose the tapware and the waste to match each other, since the bath itself does not decide the metal.

Baths

The table sets out a sample of the Decina baths with length, width, height and capacity, taken from the specification of each product. Capacity is measured 200mm below the rim, which is the level most people fill to.

Piece Rating Key sizes
Decina Elisi Freestanding Contour Spa Bath 1700mm No rating needed, 350 L/min Length 1700mm; Width 840mm
Decina Alegra 1400 Back-To-Wall Freestanding Bath with Integrated Overflow No rating needed Length 1400mm; Width 800mm
Decina Mintori Contour Freestanding Spa Bath 1790mm No rating needed, 350 L/min Length 1790mm; Width 900mm
Decina Cosmo 1300mm Freestanding Bath With Integrated Overflow No rating needed Length 1300mm; Width 800mm
Decina Oxford 1700mm Back-To-Wall Freestanding Bath with Overflow No rating needed Length 1700mm; Width 800mm
Decina Alegra Contour Back-To-Wall Freestanding Spa Bath 1700mm with Jets No rating needed, 350 L/min Length 1700mm; Width 800mm
Decina Natalia 1500 Back-To-Wall Corner Bath with Overflow No rating needed Length 1500mm; Width 750mm
Decina Bianco Back-to-Wall / Corner Freestanding Bath 1500mm No rating needed Length 1500mm; Width 730mm
Decina Natalia 1700 Back-To-Wall Corner Bath with Overflow No rating needed Length 1700mm; Width 780mm
Decina Prezzo 1500 Freestanding Bath with Integrated Overflow No rating needed Length 1500mm; Width 800mm
Decina Bianco Back-to-Wall / Corner Freestanding Bath 1700mm No rating needed Length 1700mm; Width 730mm
Decina Fabrino 1675 Inset Bath No rating needed Length 1675mm; Width 765mm

Choosing a Decina bath by installation style

Style Examples in the range Suits
Freestanding Prezzo 1500 and 1700, Novara 1680, Elisi 1700, Lola 1700, Regent 1700 oval, Florencia 1400 round A bathroom with room to walk around the bath
Back to wall freestanding Alegra 1400, 1500 and 1700, Aria 1500 and 1700, Oxford 1700, Natalia 1500 and 1700, Aurora 1500 and 1700 One clear wall and a freestanding look
Island Uno 1530 and 1700, Caval island 1800 A bath placed in the middle of a large room
Inset Fabrino 1525 and 1675, Shenseki, Turin Contour spa A bath set into a hob or a tiled surround

The sizes are the lengths in the name of each bath. Read the width, the height and the waste position on the product page, because baths of the same length differ by 50mm or more.

Capacity and size

A bath's capacity decides how much hot water it takes to fill. The Prezzo 1500 holds 121 litres, the Novara 1680 holds 182 litres and the Florencia 1400 round bath holds 290 litres, which makes a 1400mm bath hold more than a 1700mm one when its shape is round. Capacity is measured 200mm below the rim, so a full bath with a bather in it holds less. Check the capacity against the hot water system, and against the weight the floor can carry.

Contour spa baths

The Decina Contour spa baths are jetted baths with a pump. The Turin 1790 is an inset spa bath with 12 jets, a 750 watt TriFlo Eco pump, a rim mounted touch pad and a bath base reinforced with resin and fibreglass, and it is made in Australia. The Alegra Contour is a back to wall freestanding spa bath with lumbar support, a centre waste for two bathers and the pump mounted through the wall, outside or in an adjoining room. See Decina spa baths for the full set.

A spa bath needs two things a plain bath does not: a place to reach the pump for service, and a power supply fitted by a licensed electrician. Settle both before the walls are lined, and decide where the pump goes before you choose the bath.

Supporting the bath

An acrylic bath must be supported under its base so it does not flex when it is full. Decina names two ways: a full mortar bed, or the Ezi Frame, a galvanised steel support frame with adjustable legs that is glued to the underside of the bath with construction adhesive and screwed down to the floor. Scrap timber, bricks or foam under the bath are not a support, and they put the warranty at risk. The Ezi Frame suits selected baths and spa baths, so check that it is made for the bath you choose. For a shower over bath, the frame should be fitted before the bath is installed.

Wastes and connectors

The Decina pop-up plug and waste has a 68mm surface diameter and a G1 1/2 inch thread, and it is not made for baths with an overflow. The flexible bath connector with a pop-up waste has a 70mm surface diameter and the same thread. Some baths include a waste and some are sold without one, so check the box contents. Building codes require a fully removable waste in some situations, so ask your plumber about it before you order.

Shower bases

Decina also makes Luna shower bases in 900mm and 1000mm sizes, with a centre outlet or a curved shape. They are acrylic, reinforced with resin, timber board and fibreglass, with a low entry height of 49mm, and they need no mortar bed. They come with a chrome removable waste cover. Measure the recess and the position of the outlet before you order.

Floor load and clearance

A freestanding bath puts its weight on a few small feet. Water adds about 1kg per litre, so the load with a bather can reach 400kg to 500kg, and a timber floor usually needs reinforcement, such as blocking between the joists. Leave 200mm to 300mm clear on three sides and 600mm at the entry end, with 50mm to 100mm around the bath for cleaning. A freestanding bath is at its best in a bathroom 2.8m wide or more, and a back to wall bath suits a narrower room.

Where the pipes go

Water reaches a bath by one of two routes. A floor mounted mixer takes its pipes up through the floor, and a wall mounted spout takes them through a wall. Floor flanges should be fixed to the structural floor, not just to the tile, and the supply pipes should be pressure tested before the floor finish goes on. A floor mounted spout needs precise positioning before tiling, which is why the tapware is chosen before the bath is fixed. Confirm the position matches the tap you chose, because changing it after delivery is costly.

Tapware for a bath

A freestanding bath needs a floor mounted spout or mixer, or a wall mounted set if the bath sits close enough to a wall. Leave at least 100mm clear around the bath edge for a freestanding mixer. A wall mounted spout with a long reach can work if the bath is positioned close enough, and a bath near a wall can need a spout arm of nearly 350mm, so check the reach before you fix the position. A back to wall bath takes a wall mixer and a spout, or a deck mixer where the bath has a tap deck.

Caring for the bath

Rinse the bath after each use, then wipe it with a soft sponge or a microfibre cloth and a pH neutral cleaner. Avoid bleach, ammonia, abrasive powders and steel wool, which dull the surface. Give the bath a weekly deeper clean and a monthly look at the waste and the silicone seals. A freestanding bath has more surface to dry, so a quick wipe of the sides after use keeps soap marks from setting.

Choosing a bath format

The format depends on the walls you have and the floor you can give up. Use the table as a starting point, then measure the room.

If your room has Choose Reason
Space to walk around a bath, 2.8m width or more Freestanding Finished on all sides
One clear wall Back to wall Freestanding look, flush to the wall, no gap behind
A corner Back to corner, left or right hand Saves floor space; check the hand before you order
A small bathroom 1500mm in any format The shorter bath leaves room to walk

Before you order

Choose the format from the room first, then the size from the floor and the people who use the bath. Check the waste position against the plumbing, plan the support, and confirm the floor can carry the weight of a full bath. For a spa bath, plan the pump access and the power before the walls are closed.

Frequently Asked Questions

What is a spa bath and how does it work?

A spa bath is a bathtub fitted with jets that pump pressurised water or air through nozzles in the bath walls to create a therapeutic massage effect. Water jets provide a deep-pressure massage, while air spa systems create a gentler, bubbling sensation. Some models combine both systems for a customisable experience.

Are spa baths hard to maintain?

Spa baths require more maintenance than standard baths. The jet system, pipes, and pump need to be cleaned regularly to prevent bacteria and biofilm buildup inside the plumbing. Most spa baths have a self-cleaning or purge cycle that should be run after each use. Using appropriate spa bath cleaning products (not standard bathroom cleaners) is essential for maintaining the internal pipework.

Do spa baths require special plumbing or electrical connections?

Yes. Spa baths require both standard plumbing connections (hot and cold water, waste) and a dedicated electrical connection for the pump and controls. This must be installed by a licensed electrician and plumber. The bath location must be accessible for the motor in case of maintenance or replacement. Discuss these requirements with your trades early in the planning process.

Are spa baths suitable for small bathrooms?

Most spa baths are built into alcove or corner configurations and are available in standard bath sizes (1500–1800mm), so they can fit in the same space as a regular built-in bath. However, the motor and pump require accessible housing, which may add to the spatial footprint. If a spa bath appeals to you but space is limited, a drop-in spa bath with a built-in surround is often the most compact option.