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This help desk is a free resource intended for discussion purposes only. Neither BOMA, its chapters, affiliates, or Extreme Measures Inc.® are responsible for the information, comments or opinions expressed herein. For complete information, refer to the official publications of the standards themselves.

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External Circulation

Jeffrey Griffin
JKG Collaborative Architecture
October 12, 2012

Does the standard permit the inclusion of exterior unenclosed (but covered) circulation in the calculation of rental floor area. One story building with covered areas at suite entrances.

Thank you.


David Fingret
Extreme Measures Inc.
October 15, 2012

Hi Jeff,

There is no rentable area calcualtion in the "BOMA 2009 - Gross Areas of a Building" standard. Having said that, the Exterior Gross Area calculation within this standard may include the covered areas that you describe as "External Circulation".

If this is a single tenant building, you may use the Exterior Gross Area as the rentable area.

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