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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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September 11, 2019

In a 2 story office building, there is a staircase that has access from
1) outside the building
2) 1 Tenant on 1st floor
3) 1 tenant on 2nd floor
there are additional tenants in the building.

Are the stairs part of rentable SQ. FT.?
is the elevator Shaft in the building part of the rentable SQ. FT.?
I'm using method B

David Fingret
Extreme Measures Inc.
September 12, 2019

Hi Yisra,

If the stairs are enclosed within the interior of the building, only the lowest level (where there is a Floor) is included in the Rentable Area. Any openings in the Floor above the lowest level to accommodate stairs would be a Major Vertical Penetration and therefore excluded from the Rentable Area.


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