kattokäyttöön

Kattokäyttöön is a Finnish term used in product labeling and installation guidelines to indicate that an item is intended for ceiling installation or use. The word is a compound formed from katto (ceiling) and käyttöön (illative form of käyttö, “for use”), effectively meaning “for ceiling use.”

In practice, kattokäyttöön is common in contexts such as lighting, where ceiling-mounted fixtures are prevalent, as well as with devices that can be mounted on or suspended from a ceiling, for example sensors, cameras, speakers, or projectors. The phrase helps specify the intended mounting orientation and compatibility, distinguishing it from floor- or wall-mounted variants.

Linguistically, kattokäyttöön functions as a directional expression that accompanies nouns or adjectives to specify use. It can appear in phrases such as kattokäyttöön tarkoitetut valaisimet or käyttöohjeet kattokäyttöön, among others.

Related terms include seinäkäyttöön (for wall use) and lattiakäyttöön (for floor use). The concept is part of a broader practice in Finnish technical and consumer-language labeling to clarify the proper application and installation context for products.