MIL-HDBK-1032/2
Pallet Racks. Selective pallet racks (see Figure 25) consist of
3.8.2
uprights, pallet beams, bracing, and miscellaneous accessories. Minimum
design load shall be 3,000 pounds (1360 kg) per pallet. Installation must
observe the following:
3.8.2.1
Dimensions. Pallet racks shall have a 40-inch (1020 mm) depth and
accommodate standard 40- x 48-inch (1020 mm x 1220 mm) Navy pallets without
front or rear pallet overhang (see Figure 26). Use of other sizes of pallet
racks or pallets must be documented and justified. Beam to beam vertical
spacing averages 48 inches (1220 mm) (see Figure 27).
Stability. Rack stability is influenced by loading conditions,
3.8.2.2
attachment, and rack assembly. Racks exceeding a 6:l height to depth ratio
must be securely anchored or braced externally. For standard Navy racks,
this applies to racks exceeding 20 feet (6096 mm) in height.
3.8.2.3
Flue Space. Fire protection requirements dictate a minimum
longitudinal flue space (Figure 28) of 6 inches (150 mm). Flues shall be 12
inches (300 mm) deep in refrigerated areas. In flammable/hazardous materials
storage areas, provide 12-inch (300 mm) flues between back-to-back racks.
Flues of 8-12 inches (200-300 mm) shall be provided between backs of racks
and walls. Navy standard pallet racks provide a minimum 4-inch (100 mm)
transverse flue space. Comply with NFPA 231C if rack or load sizes are
changed.
Attachment. Securely attach all pallet racks to floors, walls, and
3.8.2.4
each other, to ensure stability and safety. Cold storage facilities require
special rack attachment procedures. Refer to subparagraph 6.5.4 for cold
storage rack attachment criteria.
3.8.2.5
System Interface. Interface operations with pallet rack using
pickup and delivery (P&D) stations, as illustrated in Figure 29. Provide
additional cross-aisle width to accommodate these P&D stations.
Aisle Dimensions. Coordinate aisle dimensions with specific
3.8.3
equipment requirements. Observe the following:
3.8.3.1
Rail Guidance. Coordinate rail locations with pallet rack and
vehicle characteristics (see Figure 30). Provide sufficient cross aisle
width to accommodate the entrance flare.
3.8.3.2
Wire Guidance. Coordinate guide wire locations with pallet rack
and vehicle characteristics (see Figure 31). Review guide wire location plan
to provide a continuous loop and avoid crossovers. Install loop driver and
control panel in a protected location.
Transport Aisles. Width of transport aisles shall be at least
3.8.3.3
twice the vehicle width plus 18 inches (145 mm) to permit two-way traffic.
3.8.4
Building Bay Dimensions. Modular building dimensions (See Table 5)
were developed using the systems requirements established in NAVSUP PUB-529.
The universal bay size will not represent the optimum column spacing for
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