Wall Hung Toilet Spec Sheet

George Jul 01, 2026

When it comes to bathroom renovations or new constructions, one of the most crucial decisions you'll make is choosing the right toilet. Among the various types available, wall-hung toilets have gained significant popularity due to their space-saving design, modern aesthetics, and easy cleaning. To help you make an informed decision, we've compiled a comprehensive spec sheet detailing the key aspects of wall-hung toilets.

Los Flexi White Round Custom height Wall-hung Rough-In Dual Flush Soft Close 1-piece Toilet Lowes.com
Los Flexi White Round Custom height Wall-hung Rough-In Dual Flush Soft Close 1-piece Toilet Lowes.com

Before we dive into the specifics, let's briefly discuss what sets wall-hung toilets apart. These toilets are installed on the wall, with the tank and plumbing hidden within a wall-mounted carrier, leaving only the bowl visible. This not only creates a sleek, minimalist look but also makes cleaning the floor beneath the toilet a breeze.

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

Understanding Wall-Hung Toilet Specifications

To ensure you're selecting the right wall-hung toilet for your space, it's essential to understand the following specifications:

a bathroom wall hung toilet detail diagram with measurements for the walls and floor area, along with instructions on how to install it
a bathroom wall hung toilet detail diagram with measurements for the walls and floor area, along with instructions on how to install it

Bowl Dimensions

Wall-hung toilets come in various bowl sizes to accommodate different user needs and space constraints. The most common sizes are:

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
  • Compact (480mm x 380mm) - Ideal for small bathrooms and guest toilets.
  • Standard (570mm x 420mm) - Suitable for most residential bathrooms.
  • Comfort Height (570mm x 520mm) - Designed for users with mobility issues or taller individuals.

Always measure your space and consider the users' needs when selecting the bowl size.

Water Consumption

WC dimensions in mm
WC dimensions in mm

Water efficiency is a crucial factor to consider, especially in water-conscious regions. Wall-hung toilets typically use either 4, 6, or 9 liters of water per flush (Lpf). Dual-flush models allow users to choose between a partial flush (3-4L) for liquid waste and a full flush (6-9L) for solid waste, promoting water savings.

To ensure compliance with local water-saving regulations, check the toilet's Water Efficiency Label (WEL) or consult your local plumbing codes.

Wall-Hung Toilet Components and Installation

Ivy Wall Hung Elongated Toilet Bowl 0.8/1.28 GPF Dual Flush
Ivy Wall Hung Elongated Toilet Bowl 0.8/1.28 GPF Dual Flush

Understanding the components and installation process of wall-hung toilets can help you plan your project more effectively.

Components

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
Standard Height Wall Hung WC Frame With Round Flush Plate - Matt Black
Standard Height Wall Hung WC Frame With Round Flush Plate - Matt Black
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 technical drawing shows different types of toilet
the technical drawing shows different types of toilet
Elongated Compact Wall Hung Toilet Bowl Only in White, Soft Close Seat Included
Elongated Compact Wall Hung Toilet Bowl Only in White, Soft Close Seat Included
the standard toilet seat height is shown
the standard toilet seat height is shown
8 Of The Best Wall Hung Toilets You Can Buy
8 Of The Best Wall Hung Toilets You Can Buy
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
BACK TO WALL TOILET/ WATER CLOSET
BACK TO WALL TOILET/ WATER CLOSET
the technical drawing for an automatic toilet
the technical drawing for an automatic toilet
Wall Hung Toilets | Floating Toilet | Sanctuary Bathrooms
Wall Hung Toilets | Floating Toilet | Sanctuary Bathrooms
the instructions for how to use an automatic toilet
the instructions for how to use an automatic toilet
the diagram shows how to install an automatic toilet
the diagram shows how to install an automatic toilet
the details of a wall hung toilet
the details of a wall hung toilet
Liberty 1.6 GPF Elongated Wall Hung Toilets (Seat Included)
Liberty 1.6 GPF Elongated Wall Hung Toilets (Seat Included)
RAK Sensation Rimless Wall Hung WC & Soft Close Seat
RAK Sensation Rimless Wall Hung WC & Soft Close Seat
Viega Prevista 1120mm Wall Hung Dry WC Frame & Cistern
Viega Prevista 1120mm Wall Hung Dry WC Frame & Cistern
How to Hide Bathroom Plumbing Without Blocking Future Repairs
How to Hide Bathroom Plumbing Without Blocking Future Repairs

Wall-hung toilets consist of two main components:

  • Bowl - The visible part of the toilet that users interact with.
  • Carrier - The wall-mounted frame that houses the tank and connects to the plumbing. It supports the bowl's weight and ensures stability.

The carrier typically comes with a flush plate that can be mounted on the wall or integrated into the bowl design.

Installation

Installing a wall-hung toilet requires careful planning and professional execution. Here's a simplified overview of the process:

  1. Determine the optimal wall location for the carrier, ensuring it aligns with the rough-in plumbing.
  2. Install the carrier onto the wall studs, using appropriate fasteners and ensuring it's level and plumb.
  3. Connect the toilet's water supply line to the carrier's inlet and the drain line to the waste outlet.
  4. Position the bowl onto the carrier, aligning the mounting bolts, and secure it in place using the provided hardware.
  5. Attach the flush plate to the wall or bowl, depending on the model.

Always consult the manufacturer's installation instructions for specific guidelines and safety precautions.

In the world of bathroom design, wall-hung toilets offer a unique blend of style, functionality, and ease of maintenance. By understanding the key specifications and installation requirements, you can make an informed decision that enhances your bathroom's aesthetics and meets your practical needs. Happy renovating!