Extreme Measures Planmine™ Help Desk
About Us
Sign In / Up

Extreme Measures

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.

FAQ & Read-Me Articles
What are as-built drawings / models?
What is CAD and BIM?
How do I resolve an area dispute?
Where can I get measurement standards publications?
BOMA Office Overview
BOMA Industrial Overview
BOMA Retail Overview
BOMA Multi-Unit Residential Overview
BOMA Gross Areas Overview
BOMA Mixed-Use Overview
IPMS for Office Overview
Alternative Methodologies
Glossary of Industry Terms

Dominant Portion

Melissa Hannam
PHB Group Inc.
May 5, 2010

With regard to windows along an exterior wall of a fitness room - I'm trying to determine the dominant portion, but there is no ceiling in that space, it's open to the underside of the structure above. I don't know if the glazing comprises more that 50% of the floor to ceiling height because there is no ceiling! How do I determine if the dominant portion is the glazing or the wall?


Adam Fingret
Extreme Measures Inc.
May 5, 2010


This scenario is not specifically addressed by the Standard, but it's reasonable that in the absence of a finished ceiling, the underside of the floor above effectively functions as a ceiling.

Simply measure as if the floor above is the ceiling.

Your Comments ...

Please allow up to 24 hours for your question to appear after it is reviewed.