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How to Measure Toilet Rough-In Distance for Perfect Installation

10/02/2025 | Hawkrown

When choosing a toilet, it is essential to determine the distance of the toilet's rough-in beforehand. So, what does toilet rough-in mean? Let's explore this in detail.

What Does Toilet Rough-In Mean:

Toilet rough-in refers to the distance from the center of your toilet's drain pipe to the wall. Common rough-in sizes for toilets include 30 cm, 35 cm, 40 cm, 45 cm, and so on. Different rough-in sizes correspond to different toilet models. Therefore, it is crucial to measure your toilet rough-in size accurately and consider factors such as the bathroom layout and personal preferences when purchasing a toilet.

What Aspects Should Be Considered When Buying a Toilet:

1、One must pay attention to clogging issues when selecting a toilet, as clogs primarily occur in the drainage pipes. When purchasing drainage pipes, it is important to focus on the size of the pipes. In our country, the standard diameter for drainage pipes is generally 41 millimeters. However, it is recommended to choose pipes with a larger diameter, as this improves the drainage efficiency and helps prevent clogging.

2、The ability of the toilet to flush cleanly should also be considered. If a toilet does not flush cleanly, it is often due to poor quality of the glaze on the toilet surface. Therefore, when selecting a toilet, you should check the quality of the glaze. A smooth, even-colored glaze that is not rough will typically yield better flushing results.

3、Consider the splash issue when selecting a toilet. If water splashes out during flushing, it can lead to surrounding contamination, making it unsanitary and affecting normal usage. Thus, it’s important to check the design of the toilet's interior. Generally, if the toilet's interior is designed with a 45-degree slope, it is less likely to splash water around and can also effectively prevent unpleasant odors.

summary:The above information provides a detailed introduction to what toilet rough-in means and the considerations for selecting a toilet. We hope this helps those in need. For more related content, continue to follow us on Hawkrown. We will provide more exciting information in the future.

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