Pallet Racking Component Glossary

Authored by Sue Tusino
January 23, 2020

When purchasing used pallet racking there are lots of details to consider to ensure you choose the right storage system for your operation. The size of the products you’re storing, as well as the size and layout of your facility factor into every decision throughout the purchasing process. From what type of racking to choose, to what accessories you need.

At ASI, our knowledgeable sales team will walk you through everything from the quote to installation. That said, we know that shopping for used pallet racking can be overwhelming. To help simplify it, here is a glossary of common pallet racking terms. If you still have questions once you review this list, give us a call at (800)876-3736.


  • Also known as uprights or posts, these are the vertical supports at the end of racks


  • Horizontal supports that run from column to column. Pallets that are large enough to span the depth of the rack will sit on two beams - one at the front and one at the back.


  • Used to bridge the gap between two beams on a single level of racking, pallet rack decking creates a level surface on which to store pallets. At ASI, we offer plywood and corrugated steel decking, as well as a variety of styles of wire decking.
Wire Decking
Column Protector

Row Spacers

  • These are pieces of metal that are bolted on to the columns of two adjacent rows of racks. Row spacers are available in a variety of widths. In addition to providing a uniform space between each row they have the added benefit of increasing the overall stability of your racking.

Column Protectors

  • As the name suggests, these upright pieces of metal are bolted to the floor and surround the base of columns. The purpose of column protectors is to prevent your rack from damage from passing forklifts

End Of Aisle Guards

  • These provide slightly more protection than column protectors alone. End of aisle guards are pieces of metal that are bolted on the ground and span the entire depth of the rack, protecting both uprights as well as any bracing.

Wall Ties

  • These are used to increase the stability of a rack that is located next to a wall. Wall ties bolt onto both the rack column and the wall.

Stop Bars

  • These are used to increase the safety of your operation. Stop bars are attached to the back of racks to provide a stop point for pallets as they are being loaded. Due to the fact that they block off one side of the rack, stop bars are only useful in situations where a rack will be loaded and picked from the same side.

Pallet Rack Netting

  • This is another means of increasing the safety of your racking system. Netting, like stop bars, is attached to one side of the rack, preventing products from falling. This reduces the risk of both damaged products and employee injuries.
Pallet Rack Netting