Why Don’t Public Toilet Doors Touch the Ground?

Have you ever noticed that the doors in public restrooms don’t quite reach all the way down to the floor? At first, it might seem strange or like a design flaw, but there’s actually a very practical reason behind it.
The gap at the bottom of public toilet doors helps with ventilation. Bathrooms can get pretty stuffy and humid, and that little space allows fresh air to flow in and out more easily, helping to reduce odors and keep the air from becoming too stale.
Another important reason is safety. If someone inside needs help—maybe they’ve slipped or had a medical emergency—the gap lets others see if the stall is occupied or even notice if something’s wrong without needing to open the door right away.
Plus, it makes cleaning easier. The janitorial staff can quickly mop and clean the floors without having to open every single stall door.
So next time you see that space under the door, you’ll know it’s there to keep things fresh, safe, and clean—smart design in action!