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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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Usable Area

John Orr
harold Orr and Sons
May 17, 2012

If there is a fire stairwell which services only a single tenant who has space on 3 floors
does this fire escape count as his usable space?

David Fingret
Extreme Measures Inc.
May 17, 2012

Hi John,

The fire escape stairwell is not usable area. The stairwell is a Major Vertical Penetration.

John Orr
harold Orr and Sons
May 17, 2012

If usable area would exclude this

what definition would include this ?

rentable area ?
gross area?

David Fingret
Extreme Measures Inc.
December 10, 2012

The definition for Major Vertical Penetrations.

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