Racking Shelving


A mechanical fastener used to secure a pallet rack structure to a building structure (e.g. the baseplate to the floor slab). Local building codes or seismic design needs will dictate the required bolt sizes.

As-Built Drawings (Plan, Elevation, Engineering, Permit)

Drawing views (Plan and Elevation) are modified after installation of a pallet rack system to reflect installation variations from original drawings.

Automated Storage and Retrieval Systems Rack

A rack structure where loading and unloading is accomplished by a stacker crane or similar vehicle, without the aid of an on-board operator. This equipment is dedicated to a specific pallet capacity and size.  Single and double deep systems are typical for this application; specialty loaders are available up to 8 deep.


Adjacent rows of racking are bolted together with rowspacers back-to-back.  The rowspacers allow for greater stability, rigidity and impact resistance. Single deep racking has 2 bays per row and double deep racking has 4 bays per row.  Back-to-back rows should have the same beam sizes, but the beam centres can vary.

Baseplate (footplate)

A plate affixed (usually welded) to the bottom of frame columns to facilitate anchoring to the floor slab and to distribute the weight of the loaded column over a larger floor area.  Base plates vary in size according to seismic areas and column size.


A term used to describe a section of racking or shelving defined as the product storage and display area between two uprights on a single level.  For example: a 102” bay is the horizontal distance between two uprights (i.e. the length of the beams).


A horizontal structural member used primarily to resist bending. Usually arranged in pairs, front and rear at the same level, to comprise a shelf on which pallets are placed.  Wood or wire decking is placed on top of the beams to create a product display platform.  The horizontal beams determine the size of the bay and support the load.  Note: Beams are typically attached to frames by beam connectors, welded to each end.

Beam Connectors (brackets, end plates)

A formed, stamped part welded to each end of a beam to facilitate attachment to the frames.

Beam Deck

Staggered plastic wheel track for Carton Flow systems.

Box Beams

Box Beams have four flat sides like a box with no inset step.

C-Channel Beam

C-Channel Beams are typically used for busy warehouses and/or heavy load requirements. Safety Bars can be bolted into C-Channel beams to prevent the long beams from twisting. Beam brackets are usually designed for structural bolted racking, but can also be used with rollformed brackets for higher load or longer beam length applications (e.g. tunnel bays).

Cantilever Rack

A specialized form of racking designed for storing long items, (e.g. lumber and piping). Arms are anchored on one end to the racking column and protrude outwards, angled slightly upwards, to prevent the product from falling off.  It is comprised primarily of vertical columns, extended bases, horizontal arms projecting from the face of the columns and down-aisle bracing between columns. Cantilever Shelf beams can be positioned between the arms for storing shorter or products on pallets. Cantilever columns can be free-standing or tied overhead. Ideal for full clear shelf front access / loading.

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