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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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Measurement of office space

Thomas Edward Goebel
December 27, 2019

When I studied BOMA standards I understood that net rentable office space is measured from the inside of an inside wall to the opposite inside of an inside wall.
No deductions on a single floor in a one-floor building for interior walls.
Also that a "building load" is not applicable if that space has it's own entrance door not shared or affiliated with any of the other suites in this multi-tenanted office building.
Have there been any changes? Is my training still accurate?
Tom Goebel, former CPM

David Fingret
Extreme Measures Inc.
January 2, 2020


Tenant Area is measured to the vertically dominant inside finished surface.
Interior walls are not deducted.
A Building Load Factor may still be applicable to a space with it's own entrance doors, such as the proportionate allocation of mechanical room(s), etc.

There have been many changes to the office standards and there will be exceptions and other things to consider. We recommend purchasing a copy of the latest BOMA 2017 Office Standard from www.boma.org.


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