Wall Hung Toilet Specifications

George Jul 01, 2026

In the realm of bathroom design, wall hung toilets have emerged as a popular choice, offering a sleek, modern aesthetic and several practical benefits. But with numerous models available, selecting the right one can be overwhelming. This guide delves into the specifications you should consider when choosing a wall hung toilet, ensuring you make an informed decision that caters to your needs and enhances your space.

80+ Yrs of Bathroom Innovation in AU
80+ Yrs of Bathroom Innovation in AU

Wall hung toilets, also known as wall mounted toilets, are suspended from the wall, creating a minimalist look and facilitating easy cleaning. They are typically paired with a concealed cistern, which is installed within the wall, further contributing to their streamlined appearance. But beyond their aesthetic appeal, there are several functional aspects to consider.

Toilet Dimensions for 8 Different Toilet Sizes (Toilet Diagrams)
Toilet Dimensions for 8 Different Toilet Sizes (Toilet Diagrams)

Dimensions and Space Requirements

Before you begin your search, measure the space where your toilet will be installed. Wall hung toilets come in various sizes, typically ranging from 16 to 20 inches in depth and 14 to 22 inches in width. Consider the size of your bathroom and the toilet's proximity to other fixtures to ensure there's enough space for comfortable use.

an image of some type of toilet and sink in a room with diagrams on it
an image of some type of toilet and sink in a room with diagrams on it

Additionally, wall hung toilets require a suitable wall structure to support their weight. The wall must be strong enough to bear the load of the toilet and its user. If your wall is not load-bearing or is made of a material like drywall, you may need to reinforce it or install a support structure.

Bowl Height

an image of a toilet with the seat up and side view showing it's measurements
an image of a toilet with the seat up and side view showing it's measurements

Bowl height is an essential consideration, especially for users with mobility issues or elderly users. Standard bowl heights range from 14 to 17 inches. Comfort height toilets, which are designed to match the height of a standard chair, are increasingly popular and typically measure around 17 inches. Consider the needs of your users when selecting the appropriate bowl height.

Some toilets also offer adjustable bowl height, providing flexibility to suit different users. This feature can be particularly useful in shared bathrooms or households with varying user needs.

Water Consumption and Efficiency

the wall hung toilet detail is shown with measurements and details for each section in this drawing
the wall hung toilet detail is shown with measurements and details for each section in this drawing

Water efficiency is a crucial factor, especially in areas with water restrictions or high water bills. Wall hung toilets typically use between 0.8 to 1.6 gallons per flush (GPF), making them more water-efficient than traditional toilets. Dual-flush toilets, which offer two flush options for liquid and solid waste, are even more efficient, using as little as 0.8 GPF for liquid waste.

Look for toilets that carry the WaterSense label, indicating they meet the EPA's water efficiency standards. Not only does this help conserve water, but it may also qualify you for water bill rebates or tax credits.

Support Structure and Installation

Wall Hung Toilet - Free CAD Drawings
Wall Hung Toilet - Free CAD Drawings

Wall hung toilets require a support structure to keep them securely in place. This usually consists of a frame or bracket that is installed within the wall during construction or renovation. The toilet is then hung from this frame using bolts or brackets.

Ensure that the toilet you choose is compatible with the support structure you have or plan to install. Some toilets come with their own support system, while others require a separate purchase. Consider the cost and complexity of installation when making your selection.

WC dimensions in mm
WC dimensions in mm
Victorian Plumbing - Online Bathroom Specialist.
Victorian Plumbing - Online Bathroom Specialist.
Standard Height Wall Hung WC Frame With Round Flush Plate - Matt Black
Standard Height Wall Hung WC Frame With Round Flush Plate - Matt Black
Toilet Suites - Wall Hung, Close Coupled & More
Toilet Suites - Wall Hung, Close Coupled & More
an image of a bathroom being built with the words wall hung toilets beware
an image of a bathroom being built with the words wall hung toilets beware
Caroma Liano Invisi II Wall Hung Toilet Suite with Soft Close Quick Release Thin Seat White (4 Star) from Reece
Caroma Liano Invisi II Wall Hung Toilet Suite with Soft Close Quick Release Thin Seat White (4 Star) from Reece
The White Space Anon Rimless Wall Hung WC
The White Space Anon Rimless Wall Hung WC
a hand holding a small black and white brush
a hand holding a small black and white brush
VitrA Sento Rimless Wall Hung WC With Soft Close Seat & JTP Cistern Frame Pack
VitrA Sento Rimless Wall Hung WC With Soft Close Seat & JTP Cistern Frame Pack
Trieu Vo - Trieu Vo added a new photo.
Trieu Vo - Trieu Vo added a new photo.
Creavit Vitroya Wall Hung WC - Baker and Soars - Leicester
Creavit Vitroya Wall Hung WC - Baker and Soars - Leicester
8 Of The Best Wall Hung Toilets You Can Buy
8 Of The Best Wall Hung Toilets You Can Buy
Toilet Suites - Wall Hung, Close Coupled & More
Toilet Suites - Wall Hung, Close Coupled & More
the technical drawing shows different types of toilet
the technical drawing shows different types of toilet
the diagram shows how to install an automatic toilet
the diagram shows how to install an automatic toilet
the diagram shows how to use wall hung toilet detail for bathroom design and installation, including free drawings
the diagram shows how to use wall hung toilet detail for bathroom design and installation, including free drawings
BACK TO WALL TOILET/ WATER CLOSET
BACK TO WALL TOILET/ WATER CLOSET

Bowl Shape and Design

Wall hung toilets come in various bowl shapes and designs, each with its own advantages. Round bowls are compact and suitable for small bathrooms, while elongated bowls offer more space and are generally more comfortable for adults. Consider the size of your bathroom and the needs of your users when selecting the appropriate bowl shape.

Some toilets also feature advanced designs, such as skirted bowls that hide the trapway and provide a sleek, modern look. Others may have unique features like a soft-closing seat or a nightlight. Consider these design elements when selecting a toilet that complements your bathroom's aesthetic and meets your functional needs.

Maintenance and Cleaning

Wall hung toilets are easier to clean than traditional toilets because they are suspended above the floor. This allows you to clean the floor beneath the toilet more easily and prevents dirt and grime from accumulating in hard-to-reach areas.

However, it's important to note that wall hung toilets may require more frequent maintenance of the concealed cistern. The cistern should be inspected regularly to ensure it's functioning correctly and to prevent any leaks or other issues. Some toilets come with easy-to-access cisterns, while others may require professional maintenance.

When choosing a wall hung toilet, consider the long-term maintenance requirements and ensure they align with your preferences and capabilities. A toilet that is easy to clean and maintain will not only enhance your bathroom's appearance but also contribute to its overall functionality and longevity.

In the end, selecting the right wall hung toilet involves balancing aesthetic preferences with functional needs. By considering the dimensions, bowl height, water efficiency, support structure, bowl shape, and maintenance requirements, you can find a toilet that not only looks great but also performs exceptionally well. So, go ahead, transform your bathroom space with a wall hung toilet that reflects your unique style and caters to your specific needs.