Development of Data for Use in Space Requirement Computations.

TM 38-400/NAVSUP PUB 572/AFMAN 23-210 MCO 4450.14/DLAM 4145.42

inventory will normally vary from installation to

high stacking. Therefore, selection of storage location

installation with resultant effects on average stacking

should provide for maximum stacking height potential.

heights. For example, a substantial inventory of an item

that possesses very limited high storage potential, as

(3) There are many items which lend only to

opposed to a very limited inventory of the same item,

moderate stacking heights for several reasons. Packs

would have a marked bearing on storage height average

may be too weak to withstand the weight imposed as a

for that item. For this reason, each storage activity must

result of relatively high stacking or the packs may be

compute independent data which will reflect average

unstable. Bagged items are an example of items that

potential storage height of inventory.

can be stacked to a limited height.

(1) In order to relate to space, the stacking

e. Total warehouse storage space. The gross

height must be established. Establishing stacking height

storage space within a warehouse includes

should not be predicated on the basis of the height to

(1) Storage support space. See paragraph 2-

which supplies are currently stored, but rather to the

13e.

potential storage height, that is, the height to which

(2) Aisles. See paragraphs 2-9f and 2-13e.

supplies are capable of being stored in accordance with

(3) Structural loss. See paragraph 2-13e.

proper warehousing practices. Inventory is another

influence which must be recognized. For example, the

(4) Net storage space. See paragraph 2-13e.

quantity on hand could result in some supplies being

stacked to less than the potential height. This practice

f. Occupancy

net

storage

space.

reduces the average potential height.

The term

Considerations such as ceiling heights, commodity

"adjusted potential storage height" applies to this

characteristics, and "elbow room" are factors which

recomputation.

preclude the possibility of complete occupancy of net

(2) It will be necessary to survey inventories

storage space. In any storage operations, it is desirable

in order to determine acceptable and attainable storage

to have "elbow room" available for operations flexibility.

heights.

To provide greater accuracy and lessen

This "elbow room" space must be limited to the absolute

expenditure of manpower, computers should be used,

minimum for effective storage. Sufficient "elbow room"

when available. To attain satisfactory benefits from

should be available to minimize the continuous

such a survey and to avoid establishing stacking heights

necessity for relocation of stocks to "fit" additional

for each item, supply inventory should be grouped into

receipts into the storage pattern. Fifteen percent of the

selected categories and the average heights determined

net available space is considered an adequate

for each category. For example, separate categories

allowance for "elbow room" for general supplies.

may possibly be established for type 1, easy load; type

Ammunition is governed by quantity-distance factors

2, average load; and type 3, difficult load, as defined in

found in appropriate publications.

the glossary of terms, and for unpacked items such as

vehicles.

2-7.

Development of Data for Use in Space

(a) Supply

groupings

should

Requirement Computations.

sufficiently categorized to reflect relatively constant and

accurate average potential stacking heights as well as

Computation of space requirements should use cubic

adjusted potential stacking heights which take into

feet and/or square feet as conversion factor(s) in

account the variables of supply inventory.

relating material to space. In the planning for, and

(b) Results of the survey will indicate

selection of material for storage in specific warehouses

an overall potential height and adjusted potential height

or warehouse sections, the selection should be based

for each category grouping. This should be frequently

upon the volume of inventory, stackability, bin

assessed to assure data correctly reflect the current

requirements, etc. In other words, material with low

storage situation.

stackability should not be located in high ceiling

warehouses when lower ceiling or lower floor load

b. Square foot computations.

capacity warehouses are available. This also applies to

(1) Stacking height data will be reconciled to

bin areas, storage support areas, relatively small

the amount of floor area (square footage) that is

inventories of the same item, etc. The following will

currently utilized in storing inventory. In the event that

apply in developing data to support space computations:

potential or adjusted potential storage height is not fully

occupied, provisions must be made to identify the

a. Average stacking heights. The characteristics

current excessive occupancy of square feet of floor area

of storage facilities influence the heights to which

in order to reflect the actual net square feet of storage

material may be stacked. The composition of the

space required to

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