1) Shelf
A storage surface located above the floor level and usually contained in shelving system or rack system.
The formed steel sheet which attaches horizontally to the posts and supports the load. Shelves are available in many sizes and a number of capacities.
Shelves should be specified based on the customer's requirements and uniform load capacity that the shelf must support. Steel gauge, shelf formation and reinforcing varies from manufacturer to manufacturer and thus determines shelf capacity.
2) Shelf reinforcement
A variety of flat bars, angles, channels or other formed sections which are placed within or under the shelf to reinforce the shelf and prevent damage due to shock loading.
3) Shelf divider
A formed steel partition placed within the shelf opening to subdivide it into smaller compartments. Some types of dividers include: full height, angle, tapered, sliding, floating.
4) Shelf depth
The horizontal distance measured between the outside faces of beams.
5) Shelf opening
The basic shelving compartment formed between two shelves within a unit of shelving.
6) Structural rack
Steel storage rack made from hot rolled steel shapes, generally conforming to the requirements of AISC, such as angle, beams or tubing.
7) Selective rack
Steel storage racks arranged in either single or back-to-back (double) rows. Each of the rows offers a bay or number of bays in the down aisle direction. Pallets are generally positioned side-by-side in the down-aisle direction at each level of the bay. The advantage to this configuration of rack is that all pallets are accessible from the facing aisle.
8) Storage racks
A single or multi-level structural storage system that is utilized to support high stacking of single items or palletized loads.
9) Single deep rack
The simplest of all racking systems. This rack is selective and accommodates only a single pallet.
10) Single deep selective rack
Rack structure which allows loads to be stored one unit deep on either side of an aisle.
11) Shelving post system
The vertical upright member that supports the horizontal shelf. Posts are manufactured in a variety of configurations.
12) Uniformly distributed load.
The per square inch weight of the pallet load does not vary from one point to another on the pallet. Indicates that the load on a pallet is evenly distributed.
Any static load which is evenly distributed over the entire surface of the rack deck.
A load, as on a shelf, or pair of load beams, supported by all, or nearly all of the shelf or beam supporting surfaces
13) Slave pallet
A pallet used in an automated rack system.
14) Storage aisle
An access route to storage areas such as rack bays, slots for pallets, bins or containers.
15) Step beam
A beam that provides two horizontal surfaces on which the rack decking can be placed. Usually the top surface supports the deck and the lower surface supports the reinforcing members.