BOMA

STANDARD
INDUSTRIAL BUILDINCS.
METHODS OF MEASUREMENT
METHOD B _ SCENARIO 4, MULTIPLE STORIES, MULTIPLE OCCUPANTS
Determining Rentable Area in an lndustrial Buildins
Using the Drip Line Methodology
Multiple Stories, Multiple Occupants
Refer to lllustration 84.1 and lllustration 84.2, and follow
these steps to determine the rentable area of the building:
L Determine the drip line area of each full floor
bounded by the drip line, Refer to lllustration 2
and lllustraiion 84.1.
2, Determine the floor area of any permanent mezzanines
or unclassified mezzanines bounded by the drip line
at the building perimeter, Refer to lllustration 3 and
lllustration 84.1.
3. Determine the total drip line area of the building by
adding the full floor drip line area from step # l to
the mezzanine area from step #2. This will be the
drip line area of the building.
4. ldentify all space located on either the full floor or a
mezzanine that is finished and measure its floor area
to the centerline of walls between it and adiacent
unfinished areas.
5. ldentify and measure any areas requiring disclosure,
including
. Restricted headroom area
6. Refer to lllustration 84,2 and classify all areas within the
drip line on all floors and mezzanines except temporary
mezzanines into one oi the following five classes of
space:
. Major vertical penetrations
. Occupanl areas
. Building amenity areas
. Building service areas
. Floor service areas
7. Determine the boundaries between each class of space
using the wall priority diagram shown in the Appendix,
B. Calculate the areas of each class and category of space
and tabulate them using the global summary of areas
as shown below including separate occupant areas
for each occupant measured to the centerline of their
demising walls.
9, Within each class of space, separately delineate and
calculate rentable areas of any space that are finished
or require disclosure.
. Unclassified mezzanines
. Connectors or portions thereof
A tabulation of the resulis of applying these five steps to the
building shown in lllustration B4,l is as follows:
Second Level
Full Floor
Mezzanine
Attached
Ground Level
Full Floor
FINISHED
ô ôôc
UN-FINISHED TOTAL
32399 39,622
10,574 4,486 15,060
1 1,289 28,333 39,622
Totals 24,086 70,218 94,304
These areas represent the drip line area of the building. The
following steps will calculate the rentable area of the building
and each of its occupants.
t 19l
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