A floor is the bottom surface of typically an enclosed space such as a room or vehicle. Floors vary from simple dirt in a cave to many layered surfaces made with modern technology. Floors may be stone
Floors may incorporate glass, mosaic, or other artistic expression, like this little mosaic from the Rietberg Museum in Zurich, Switzerland
Art Nouveau mosaic at an entrance in the United Kingdom
Monk sweeping the floor (1472)
A storey or story, is any level part of a building with a floor that could be used by people. Plurals for the word are storeys and stories.
Floor
…or any other material that can support the expected load. The levels of a building are often referred to as floors, although sometimes referred to as storeys or stories in American English. Floors typically consist of a subfloor for support and a floor covering used to give a good walking surface. In modern…
A large elevator panel in a North American high-rise omits several floors as well as designating three separate levels as penthouse floors.
An elevator control panel in an apartment building in Shanghai. Floors 4, 13 and 14 are missing.
Letter boxes of a residential building built in the 1970s in Hong Kong. The Chinese and English floor numberings use the traditional Chinese and the British systems, respectively, resulting in different numbers.
An American Dover Custom Impulse elevator control panel with floor numbering. In most buildings in the US and Canada with more than 12 floors, there is no floor numbered 13. The ☆ indicates the main entry floor.