United States indoor cat I-IV



Category I -- Buildings having ceilings less than eight meters (26'3").

Category II -- Buildings having ceilings between eight and 15 meters (26'3" to 49'2.5").

Category III -- Buildings having ceilings between 15 and 30 meters (49'2.5" to 98'5").

Category IV -- Buildings having ceilings over 30 meters (higher than 98'5").

The height of the building is defined as the vertical distance from the floor to the highest point at which a circle of 15 meters (in diameter) can be inscribed, below the primary structure of the building.

Same rules apply in Canada.

 


Startsidan - Webbmaster - Mfk Sländan
updaterad 20001027