ISO 9836:2011

Performance standards in building -- Definition and calculation of area and space indicators

ISO 9836:2011 deals with the definition and calculation of surface area and volume indicators.

In defining area measurement, ISO 9836:2011 uses three measurement concepts:

  1. the intra-muros and extra-muros concept used in many parts of the world;
  2. the wall centre method of measurement used in many parts of the world;
  3. variations on these methods to comply with certain national laws, or for particular types of buildings.

The surface area and volume indicators defined in ISO 9836:2011 are intended for practical use, as a basis for measuring various aspects of the performance of buildings or as a planning aid. In other words, they should enable judgement to be made on functional, technical and economic aspects of buildings.

ISO 9836:2011 is intended to be used when establishing:

  • specifications for the geometric performance of a building and its spaces (e.g. in design, purchasing procedures, etc., or in building regulations where appropriate);
  • technical documentation relating to the performance of whole buildings prepared by designers, contractors and manufacturers;
  • the amount of floor area that will not be effectively available for the placement of an individual's workplace, furniture, equipment, or for circulation;
  • evaluation, comparison or control of the properties of a building which are connected to its geometric performance.


General information

  • Current status : Withdrawn
    Publication date : 2011-10
  • Edition : 2
  • :
    ISO/TC 59/SC 15
    Framework for the description of housing performance
  • 91.040.01
    Buildings in general

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