MIL-HDBK-1191
FIGURE 2-6 (continued)
NET TO GROSS SQUARE METER (GSM)1 CALCULATIONS
FACILITY W/O HARDENING
NEW/REPLACEMENT PROJECT
ALLOWANCES/CATEGORIES
MEDICAL/
AMBULATORY
STATION/
REGIONAL
DENTAL
HEALTH CARE
COMMUNITY
MEDICAL
CLINICS
FACILITIES
HOSPITALS
CENTERS
_________________________________________________________
TOTAL NSM2
NSM
NSM
NSM
NSM
MECHANICAL
11.0% of NSM
13.0% of NSM
14.0% of NSM
16.0% of NSM
CIRCULATION
41.0% of NSM
41.5% of NSM
42.0% of NSM
46.0%
of NSM
WALLS &
PARTITIONS
14.0% of NSM
15.0% of NSM
15.5% of NSM
15.5% of NSM
HALF AREAS
1.5% of NSM
1.5% of NSM
1.5% of NSM
1.5% of NSM
FLEXIBILITY
1.0% of NSM
1.0% of NSM
1.0% of NSM
1.0% of NSM
TOTAL GSM
168.5% of NSM
172.0% of NSM
174.0% of NSM
180.0% of NSM
NOTES:
1. GSM = Gross Square Meter
2. NSM = Net Square Meter
3. For hardened facilities, increase walls & partitions allowance
by 1.0%; and half areas allowance by 2.0%.
4. For addition/alteration projects, up to 15% of the gross total
alterable space may be added to the flexibility allowance to
offset physical constraints in the existing facility. Gross
alterable space is defined as the existing net space, interior
partitions, departmental circulation, and mechanical spaces
within the departmental/functions included in the Program for
Design, plus general circulation immediately adjacent to the
affected departments/functions.
This increased allowance,
which for programming and planning purposes will be considered
to be new or addition scope, must be validated during design.
2-16
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