ISO 4157

ISO 4157Construction drawings - Designation systems

Is composed of 3 parts:
*ISO 4157-1:1988 "Construction drawings -- Designation systems -- Part 1: Buildings and parts of buildings"
*ISO 4157-2:1988 "Construction drawings -- Designation systems -- Part 2: Room names and numbers"
*ISO 4157-3:1988 "Construction drawings -- Designation systems -- Part 3: Room identifiers"

;Definitions:
*Floor n: is the horizontal partition between storey n and storey (n+1). Note: the floor in storey 5 is named as floor 4.
*Room: Identifiable physical space (area or volume, space or void) bounded actually or theoretically, even though it is not traditionally thought of as a room (also not completely enclosed by walls, ceiling and floor).
*Room identifiers: registration number of spaces:
*Room numbers: numbers (code) of rooms

;Samples: 00 Ground floor 05 5th floor -2 2nd basement floor #0215 2nd floor, room 15

ee also

*List of ISO standards