## floor space or areaThe floor space or area is the interior area of a building, calculated in square meters or square feet. The gross floor area is the total floor area of all floors
of a building calculated with the external dimensions of the building including
structures, partitions, corridors, stairs. The net floor area is the sum of all areas between the vertical building components (walls,
partitions, etc), i.e. gross floor area reduced by the area for structural
components. The usable floor area is the fraction of the
net floor area for the intended use of the building, i.e. net floor area
reduced by circulation areas (corridors, stairs etc.) and functional areas
(WCs, storage rooms etc.). The conditioned floor area is
the heated or air-conditioned floor area. The unconditioned floor
area is the unheated or air-conditioned floor area. ## Related category• BUILDING AND ARCHITECTURE | |||||

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