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I'm doing BOMA calculations for an existing building that has a stairwell that runs from the basement to the third floor and has been sealed off. Each level has a different tenant. How should this unused 'void' space be counted?
Hi Sara,
The stairwell is treated no differently than any other stairwell under the standard. It's a Major Vertical Penetration and therefore not included in the rentable area of the building.
Thanks,
David