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Does BOMA 2010 says sth about minimum hight of room/area? I know that restricted headroom area is included in IGA (under 5') and we show this area on chart, but I'm interesting who clasify the area to be usable or not according to height? If the area, for example, is 1,8m height, do we count it as occupant area? What is the minimum hight of room that we could include it to usable area, as occupant area or amenity area?
Hi Ewa,
The BOMA standard does not specify a minimum height in occupant areas. Instead it relies on current International Building Code. If a portion of the occupant area is less than the minimum height set out by the International Building Code, the BOMA standard does not exclude it from the occupant area, but it must be disclosed.
From a previous post...
Restricted Headroom is discussed on Page 43 of The Standard under 'Restricted Headroom Area'...
"Restricted Headroom Area - a portion of an occupant area that does not meet the requirement of the International Building Code section 1208.2 Minimum Ceiling Heights, including subsections thereof."
Restricted Headroom Area must be disclosed, but is NOT excluded from interior gross area, rentable area or occupant area.
You should refer to the International Building Code as there are several conditions that govern Minimum Ceiling Height. Generally however, heights below 7'-6" (2286mm) are considered below the Minimum Ceiling Height and in turn, are considered Restricted Headroom by BOMA 2010.