Difference Between 300mm and 400mm Toilet Seat Distances: What You Need to Know

When selecting a toilet, sales personnel often inquire about the rough-in distance, which generally comes in two sizes: 300 mm and 400 mm. Many homeowners are unaware of the differences between these two options. Let's take a closer look.

一、Differences Between 300 mm and 400 mm Rough-In Distances

The rough-in distance refers to the distance from the center of the toilet's drainage hole to the wall. A 300 mm rough-in means that this distance is 300 millimeters, while a 400 mm rough-in indicates a distance of 400 millimeters. Consumers need to choose based on the rough-in size; if the rough-in is only 300 mm, a 400 mm toilet cannot be installed. Conversely, if the rough-in is 400 mm, a 300 mm toilet will leave a gap at the back.

二、Factors to Consider When Purchasing a Toilet

1、Check the Weight of the Toilet

There are various styles and qualities of toilets on the market. Consumers should compare options to find a good quality one. Because many buyers lack experience, they may not know how to assess quality. The weight of a toilet is a key factor in determining its quality; it should weigh at least 50 kg, and the best options weigh around 100 kg.

2、Examine Toilet Components

The quality of the components is crucial, as good parts contribute to a longer lifespan. Typically, high-quality toilet water parts are made from superior plastic, offering excellent corrosion resistance. Consumers should pay attention to this aspect to differentiate between products.

3、Inspect the Glaze on the Toilet

When purchasing a toilet, it is essential to check the glaze. Look for a shiny, vibrant surface that is free of visible impurities. It is advisable to touch the toilet's glaze to ensure it feels smooth, as this will make it less prone to staining in the future, making cleaning easier.

In summary：

the differences between 300 mm and 400 mm rough-ins, along with important considerations for purchasing a toilet, have been covered. I hope this information is helpful. The rough-in distance refers to the measurement from the drainage hole to the wall, so it's crucial to measure on-site before making a purchase to avoid installation issues. If you are interested in learning more relevant information, please follow Hawkrown.com.