Section B-Net Space Available. (Cont)

TM 38-400/NAVSUP PUB 572/AFMAN 23-210 MCO 4450.14/DLAM 4145.12

of 10 feet; however, where local conditions and actual

Line 14, Total NSF (lines

commodity characteristics dictate a specific stacking

11 plus 12 plus 13). No entry is required since the

height, the latter will apply.

In unimproved open

program will compute the total NSF and will enter this

storage, report only cubic space actually occupied by

total under columns B though N. Total NSF is equal to

multiplying NSF occupied by a representative (sample)

the sum of NSF in bin area (line 11), rack area (line 12),

stacking height.

and bulk area (line 13).

Line 18, Total TCF (lines

Line 15, TCF is Bin Area.

15 plus 16 plus 17). No entry is required since the

Enter under columns C through J the total CF (TCF), in

program will compute total TCF and will enter this total

storage areas occupied by erected bin storage aids.

under columns B through N. Total TCF is equal to the

The TCF in the bin area is computed by multiplying the

sum of TCF in bin area (line 15), rack area (line 16), and

bin area NSF (line 11) by the unobstructed stacking

bulk area (line 17).

height. The unobstructed stacking height is defined as

Line 19, ACF in Enter

the distance between the floor and the lowermost point

under columns C through J the attainable CF Bin Area.

of overhead obstructions (e.g., sprinkler heads, joists,

(ACF) in storage areas occupied by erected bin storage

rafters, beams, roof trusses, lighting fixtures, duct work,

aids. The bin area ACF is computed by multiplying the

etc.) less the following safety clearances:

bin area NSF (line 11) by the height in feet from the

(1)

When

vertical

floor to the top of the bin storage aid or to the height

distance between floor and lowest obstruction does not

which can be reached by existing MHE, whichever is

exceed 15 feet, a safety clearance of 11/2 feet is

less.

required.

Line 20, ACF in Rack

(2)

When

vertical

Area. Enter under columns C through J the ACF of

distance between floor and lowest obstruction is greater

than 15 feet, a 3-foot safety clearance is required.

storage areas occupied by erected rack storage aids.

(3)

When

hazardous

The rack area ACF is computed by multiplying the rack

materials are involved or when storing in areas not

area NSF (line 12) by height in feet from the floor to the

equipped with sprinklers, a safety clearance of 3 feet is

top shelf (level) of the rack plus the additional height to

required.

which material can safely be stacked on the top shelf of

(4)

There

one

the rack. For example, if the height from the floor to the

exception. A clearance of only 14 inches is required for

top shelf is 12 feet and material can be stacked on the

reclaimed drum storage, regardless of stacking height,

top shelf to a height of 4 feet, the attainable stacking

provided that the building is of all-metal construction

height is 16 feet for that rack set. Cubic space above

and contains no electric wiring.

the racks will only be included to the extent that use of

such space is permitted by safety limitations and the

capacity of available MHE.

NOTE

Line 21, ACF in Bulk

The unobstructed stacking height as defined above

Area. Enter under columns C through N the ACF in

is an indicator of only the theoretical capacity of a

storage areas designated for bulk storage. The bulk

facility. It does not allow for limitations which may

area ACF is computed by multiplying the bulk area NSF

be imposed by existing storage aids, MHE, or floor

(line 13) by the stacking height that is attainable with

load capacity; therefore, the TCF also is an indicator

available MHE and is permitted by safety restrictions

of theoretical capacity.

and floor load limitations. Cubic space beyond the

reach of available MHE lift height and floor load

Line 16, TCF in Rack

limitations will not be reported even though safety

Area. Enter under columns C through J the TCF of

limitations or permissible stacking heights have not

storage areas occupied by erected rack storage aids.

been attained. (The cubic capacities reported on line 21

The TCF in the rack area is computed by multiplying the

are limited to those attainable under present storage

rack area NSF (line 12) by the unobstructed stacking

arrangements

and

achievable

with

available

height as defined above.

equipment.) The cubic capacity of improved open

Line 17, TCF in Bulk

storage space will generally be computed by using an

Area. Enter under columns C through N the TCF of

average stacking height of 10 feet.

Where local

storage areas designated for bulk storage. The TCF in

conditions and actual commodity characteristics dictate

the bulk area is computed by multiplying the bulk area

a specific stacking height, the latter shall apply. In un-

NSF (line 13) by the unobstructed stacking height as

defined above. The TCF of improved open storage will

generally be computed using an average stacking height

2-75