Figure 2-32. Bin Shelving Plan Sheet

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

operation should be considered, and when increased

operating costs offset the savings, bins and shelving

should not be double decked.

When mezzanine

platforms are used, they should have open-type metal

floors which will not obstruct the effective use of

sprinkler systems.

(3) A

determination

storage

aid

requirements should be made prior to actual

development of stock layout planographs. Appropriate

adjustment of these requirements should be

accomplished at any time it is found that increased

space utilization can be achieved. Typical storage aids

are bins, shelving, shelf boxes, and various types of

racks.

(a) Shelf boxes can provide a flexible

arrangement for efficient use of shelf space. The shelf

boxes provide retainer walls on four sides of the

material being stored thereby eliminating stock sloping

which wastes usable cube space. Shelf boxes can also

be "double stacked" on a bin shelf to facilitate use of

cubic space. When relocation of the item is required, it

can be accomplished by moving the shelf box with

contents. The result is reduced handling of loose stock.

Basic types of shelf boxes are-

Small, one compartment.

Small, two compartments.

Large, metal, one compartment.

Large, corrugated.

A complete study of shelf boxes has been made to

determine the sizes which provide the greatest

flexibility.

The standard small one and two

compartment shelf boxes are 41/2 inches high, 51/2

inches wide, and 1 foot 5 inches deep as shown in figure

2-33. The standard large one compartment steel shelf

box is 103/8 inches high, 111/4 inches wide, and 171/2

inches deep as shown in figure 234. As shown in figure

2-35, the standard large corrugated shelf box is 8 inches

high, 10 inches wide, and 16 inches deep. Figure 2-36

Figure 2-32. Bin Shelving Plan Sheet

shows a typical bin shelf box arrangement. The shelf

space sizes 1 through 6 indicate the number of standard

(1) The utilization of 75 percent of space

boxes required to house the items; size 3X indicates one

within bin and shelf openings, determined on the stock

complete shelf without boxes; size 6X indicates two

level to be carried, will be considered adequate. Losses

complete shelves without boxes. Smaller items are

in cube beyond this figure indicate the need for

stored in small 1 or 2 compartment shelf boxes which fit

readjusting the size of bin or shelf opening.

12 to the shelf. These small compartments can be

(2) Double decking of bins and shelving, if

further divided to accommodate small items (e.g., nuts,

practicable, will result in better utilization of storage

bolts, etc.).

space. However, other factors involving economy of

2-31