How to Choose a Toilet Suite: Back to Wall, Wall Hung and Close Coupled Explained

A toilet is the one fixture in the bathroom that has to perform flawlessly every day, yet it is often chosen last and in a hurry. Getting it right is about more than the look. The type of suite affects how easy the bathroom is to clean, how much water you use, and how well the toilet fits the space. This guide explains the main types and what separates a good choice from a frustrating one, and you can browse the full range of toilet suites at Apadana Design as you go.

Toilet suite types

Close coupled toilet suites

A close coupled suite is the familiar design where the cistern sits directly on top of the pan as one connected unit. It is straightforward to install, cost effective, and easy to service because everything is accessible. It is the default choice in many Australian bathrooms for good reason, and it suits most standard layouts.

Back to wall toilet suites

A back to wall suite sits with the pan and cistern pushed flush against the wall, hiding the pipework and the cistern behind the pan or against the wall. The result is a cleaner line and far fewer awkward gaps to clean around, which is why it has become so popular in contemporary bathrooms. It strikes a balance between the easy installation of a close coupled suite and the streamlined look of a wall hung one.

Wall hung toilet suites

A wall hung toilet mounts to the wall with the cistern concealed inside the wall cavity, leaving the pan floating clear of the floor. This is the most streamlined and modern option, and because the floor under the pan is clear, it is the easiest of all to clean. It also lets you set the pan height to suit the household. The trade off is that it relies on an in wall cistern and a supporting frame, so it needs more planning and is best specified early in a renovation.

Smart toilets

Smart toilets add features such as bidet washing, heated seats, automatic lids and self cleaning functions. They are a premium choice for those who want comfort and hygiene features built in, and they need access to power as well as plumbing.

In wall cisterns: floor mount and wall mount

If you choose a back to wall or wall hung design with a concealed cistern, the cistern itself comes in two mounting types. A cistern in wall floor mount supports a pan that still sits on the floor, while a cistern in wall wall mount carries a fully wall hung pan. Both hide the cistern for a clean finish, but they differ in how the pan is supported, so the choice needs to be made alongside the pan and the wall framing.

Water efficiency and the WELS rating

Every toilet sold in Australia carries a water rating under the Water Efficiency Labelling and Standards scheme. The label shows a star rating and the average water used per flush, and choosing a higher rated suite genuinely lowers your water bills over time. According to the Australian Government, replacing an old single flush toilet with a modern water efficient model can save a typical family of four around fifty kilolitres and roughly one hundred and fifty dollars a year. You can check any product and compare models on the official water rating website. It is also worth confirming that any toilet is WaterMark certified, since that certification is required before a licensed plumber can install it.

Rimless pans and easy cleaning

A growing number of modern suites use a rimless pan design, where the bowl has no hidden rim for grime and bacteria to collect under. Rimless pans are easier to clean thoroughly and more hygienic, which is why many of the suites in the Apadana Design toilet range, such as the Gemelli and Venezia suites, use rimless designs.

Choosing the right toilet seat

The seat is easy to overlook, but it shapes the everyday experience of the toilet. A few features are worth looking for.

• Soft close. A soft close or slow close seat lowers gently rather than slamming, which is quieter and lasts longer.
• Quick release. A quick release seat lifts off easily for thorough cleaning, then clicks back into place.
• Slim or standard. Slim seats suit a contemporary look, while standard seats can feel more substantial.
• Specialty seats. Junior seats suit family bathrooms, and assist or ambulant seats raise the height for accessibility.

The Apadana Design range includes a wide selection of seats, from soft close and slim styles to assist and junior options, so you can match the seat to the household and the pan.

Fitting the toilet to your space

Before you commit, check that the suite fits the room and the existing plumbing. The position of the waste outlet matters, as pans are designed for either an S trap, where the waste exits through the floor, or a P trap, where it exits through the wall. A compact suite suits a powder room or small ensuite, while a full size suite suits a main bathroom. If you are reconfiguring the layout, our team handles pan and cistern selection as part of a complete bathroom renovation in Melbourne.

Frequently asked questions

Q. What is the difference between a back to wall and a wall hung toilet?

A back to wall toilet keeps the pan on the floor but pushes it flush against the wall to hide pipework, while a wall hung toilet mounts the pan to the wall with the cistern concealed in the cavity, so the pan floats clear of the floor. Wall hung is the most streamlined and the easiest to clean, but needs an in wall cistern and more planning.

Q. Which toilet suite is easiest to keep clean?

A wall hung suite is the easiest because the floor under the pan is completely clear. A back to wall suite is next best, since it removes the awkward gaps around the base. A rimless pan further reduces the spots where grime collects.

Q. What does the WELS star rating mean for a toilet?

The Water Efficiency Labelling and Standards rating shows how water efficient a toilet is, with more stars meaning less water per flush. A higher rated toilet lowers your water use and bills over time. You can compare models on the government water rating website.

Q. What is a rimless toilet pan?

A rimless pan has no hidden rim around the inside of the bowl, so there is nowhere for grime and bacteria to build up out of sight. This makes it easier to clean thoroughly and more hygienic than a traditional rimmed pan.

Q. Do I need a particular type of toilet for my plumbing?

Yes. Pans are made for either an S trap, where the waste exits through the floor, or a P trap, where it exits through the wall. Check which one your bathroom has, since the suite needs to match the existing waste position unless you are relocating the plumbing.

Browse the full range of toilet suites and seats at Apadana Design, with free shipping across Melbourne, or speak to our team about a complete bathroom renovation.