Are Floor Drains Required In Commercial Restrooms?

In shorts, floor drains are not required in commercial restrooms. However, they are often recommended in order to prevent flooding and other water-related issues.

If you’ve ever been to a public restroom, you know they can be pretty gross. In fact, the New York Department of Health found that almost 50% of inspected businesses violated standards for cleanliness in public restrooms. You don’t want your business to be one of them!

Thankfully, there are some easy ways to prevent this from happening. One of the simplest things you can do is installing floor drains in your commercial restrooms so you don’t have to worry about water overflow or water damage if something like this happens again. However, if you aren’t sure if this setup is required in commercial restrooms, read on for more information.

What is a Floor Drain?

A floor drain is a basin that sits at the bottom of your commercial restroom’s toilet area. This basin is designed to catch any water that flows out of the toilet and into the drain so it doesn’t damage your commercial building’s flooring. They almost always come with a grate to help prevent people from falling in. Floor drains are sometimes referred to as “toilet diversion drains” or “sump pumps.” They are different from a sanitary sewage system since they only divert water from the toilet. They are also different from a floor drain that catches wastewater from the sink since floor drains for the sink are usually installed below the sink and are not connected to the toilet area.

Are Floor Drains Required In Commercial Restrooms

It depends on various factors such as the type of business, the location of the business, and the type of restroom being used. For example, a restaurant in a high foot traffic area might require a floor drain to prevent slip and fall accidents.

However, a small office restroom might not need a floor drain if it is not used often. Ultimately, it is up to the business owner to decide if a floor drain is necessary.

Why Are Floor Drains Required in Commercial Restrooms?

You might wonder why you need to install floor drains in commercial restrooms. Commercial restrooms are not just for businesses, they are also for people who are visiting your business. Almost everyone has had to use a public restroom before and has probably seen the unfortunate mess they can be.

This can occur for a variety of reasons, such as someone flushing something they should not have, clogging of pipes, or even an overflowing toilet. With a floor drain in the restroom, the water will be diverted away from the rest of your commercial building’s flooring. This means that you can prevent water damage to your commercial property.

Most commercial restrooms are required to have floor drains in order to comply with local building codes. Floor drains are necessary in order to prevent flooding in the event of a plumbing leak or blockage. They are also helpful in keeping the restroom clean by allowing water to quickly drain away.

Where Should You Install a Floor Drain?

In order for a commercial floor drain to be effective, you need to install it directly underneath the toilet. The drain’s lid should be flush with the floor so water doesn’t go anywhere else. It is important that you install the floor drain correctly or you could end up with water damage. You want the drain to be about 1 inch lower than the overflow line on the toilet.

If a commercial floor drain is installed correctly and something does go wrong, the water will collect in the drain and you can use a shop vacuum to clean it out. If the floor drain is installed incorrectly, water will go everywhere and you’ll have a much bigger clean-up job on your hands.

How to Install a Commercial Floor Drain

Installing a commercial floor drain is a great DIY project. If you have a basic knowledge of plumbing, it shouldn’t take you long to get everything set up.

  • Start by shutting off the water supply to the toilet.
  • Next, remove the toilet, clean out the space where the toilet used to be, and set the commercial floor drain down in the cleaned-out area.
  • Make sure that the drain is level with the rest of the floor so the water flows into it properly.
  • Once the drain is set in place, turn the water on, put the toilet back where it belongs, and test the floor drain for leaks.


Commercial restrooms are typically required to have floor drains, as they are often used for cleaning and mopping. Floor drains help to prevent water from accumulating on the floor and create a safer and cleaner environment.

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