How to Best Protect the Truck-Aisle Column

How to Best Protect the Truck-Aisle Column


Fork truck traffic down the aisles can be the biggest threat to pallet rack uprights. The bottom portion of the truck-aisle column is the area of the pallet rack structure that is most likely to be damaged. An excellent option, particularly when the fork truck has outriggers is a welded bottom column straddle bumper. If racking is already installed, there are also many available bolt-on options for rack column protection. This option can be improved upon by making the wise decision to install a second anchor for the truck-aisle column.

If there is only the one anchor and the bumper (or column) is struck from the side or a diagonal direction, the entire bottom of the column will want to twist or spin about the single axis that is the lone anchor. The installation of a second anchor helps the column resist this tendency to twist. For this reason, a more complete and recommended solution to adding a bottom front bumper is to also add the second anchor to the front column.

In some applications, such as higher seismic regions, there may already be a requirement for more than one anchor in the aisle column. In these applications the two (or more) anchors used should be adequate to resist bottom column twist. However, in non-seismic areas, you should always consider adding a very cost-effective extra anchor even though local building codes do not require it. It is “cheap insurance.”


More Info:

Load Capacity Requirements in the new RMI Storage Rack Standard ANSI MH16.1-2021

The revised American National Standard for storage rack, ANSI...

Anchor Bolts: Nominal Embedment vs. Effective Embedment

There is often confusion regarding what is meant by...

Anchor Bolt Embedment Tables

On projects in elevated seismic zone where there is...

Concrete Slab Importance in Rack Anchor Embedment

It is important to know the slab thickness of...