Best Of 71+ Inspiring Bathroom Sink Waste Pipe Size Australia You Won't Be Disappointed

The size of a bathroom sink waste pipe in Australia can vary depending on a few factors. In this article, we will take a closer look at the standard size, regulations, code, requirements, and standards for bathroom sink waste pipes in Australia. We will also provide a handy size chart and calculator to help you determine the right size for your bathroom sink waste pipe. Let's dive in!

The standard size for a bathroom sink waste pipe in Australia is typically 40mm in diameter. This is the most common size used for both residential and commercial buildings. However, there are instances where a larger pipe may be required, such as for a double sink or a sink with a garbage disposal unit.

The diameter of a bathroom sink waste pipe in Australia is an important factor to consider. If the pipe is too small, it can lead to clogging and blockages, while a larger pipe may be unnecessary and can take up valuable space. As mentioned before, the standard diameter for a bathroom sink waste pipe in Australia is 40mm, but larger pipes may be required for certain setups.

In addition to the standard 40mm diameter, there are also other sizes available for bathroom sink waste pipes in Australia. These include 32mm, 50mm, and 90mm. It is important to consult with a plumber or refer to the building codes to determine the correct size for your specific needs.

When it comes to bathroom sink waste pipes, there are regulations in place to ensure the safety and functionality of the plumbing system. In Australia, the Building Code of Australia (BCA) sets out the regulations for the installation of plumbing systems, including bathroom sink waste pipes. These regulations cover everything from the size and material of the pipe to the proper slope and venting requirements.

The BCA also includes a specific code for bathroom sink waste pipe size in Australia. According to the code, the minimum diameter for a bathroom sink waste pipe should be 32mm, but a larger diameter of 40mm is recommended. The code also states that the pipe should be sloped at a minimum of 1:80 to allow for proper drainage.

Aside from the regulations and code, there are also specific requirements for bathroom sink waste pipes in Australia. These requirements include the use of approved materials, proper connections, and the need for a trap to prevent sewer gases from entering the building. It is important to follow these requirements to ensure the safety and functionality of your plumbing system.

In addition to the regulations and code, there are also standards that govern the size and installation of bathroom sink waste pipes in Australia. The Australian Standards AS/NZS 3500.2:2018 covers the plumbing and drainage requirements for all types of buildings. This includes the standards for bathroom sink waste pipes, such as the minimum diameter, slope, and venting requirements.

To help you determine the right size for your bathroom sink waste pipe, we have created a handy size chart. This chart shows the recommended pipe size based on the number of fixtures, such as sinks and basins, connected to the pipe. Keep in mind that this is a general guide and you should always consult with a plumber for specific recommendations.

Number of Fixtures | Pipe Size

1-2 | 32mm

3-4 | 40mm

5-6 | 50mm

7+ | 90mm

To help you determine the exact size for your bathroom sink waste pipe, we have also created a handy calculator. Simply input the number of fixtures and the calculator will give you the recommended pipe size. Keep in mind that this is a guide and you should always consult with a plumber for specific recommendations.

Number of Fixtures | Pipe Size

1-2 | 32mm

3-4 | 40mm

5-6 | 50mm

7+ | 90mm