Keep Your Pallet Racks Steady, Carolinas: Avoiding Dangerous Deflection
Spot and Correct Deflection in Your Pallet Rack Uprights, Struts, and Beams
Pallet racking is a vital asset for efficient and secure storage in many Carolina warehouses. It’s essential for warehouse managers to ensure these racks stay in peak condition.
Regular inspections for signs of forklift impact, overloading, or missing parts are key to maintaining a well-functioning rack system. While visible damage like dents and missing pieces is straightforward to identify, deflection from overloading can be subtler—and just as hazardous.
Deflection describes the extent to which a rack component bends or shifts under weight. This can impact structural or roll-formed systems, showing up in beams, uprights, or struts. Some deflection is acceptable, but there’s a narrow margin between what’s safe and what’s not. We’ll break down how to assess deflection in your uprights, beams, and struts.
To ensure you don’t miss a step, download our inspection checklist, and read on for guidance on measuring safe deflection based on RMI standards.
PALLET RACK UPRIGHT DEFLECTION
When assessing damage to upright columns, examine them from multiple angles: front to back, down the aisle, and around column corners. Look for any bending or deflection in the uprights that exceeds ½ inch at the widest point. If an upright shows more than a ½-inch deflection, it should be unloaded and flagged for repair while awaiting the appropriate repair kit. Also, if you notice any gap between a seismic backer and the column, make a note of it as damage.
UPRIGHT DEFLECTION
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Corner Deflection:
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MEASURING DEFLECTION IN STRUTS
Struts are essential components that support the overall stability of a pallet rack system. When inspecting for strut deflection, look for any bends that exceed ½ inch. Damage to struts often occurs in the lower sections of the uprights, so pay special attention to these areas.
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MEASURING DEFLECTION IN PALLET RACK BEAMS
Pallet rack beams should remain perfectly level across their length, so any noticeable bending requires attention. To evaluate deflection, divide the beam’s length (measured from the inside edges of the columns) by 180. For example, a 96-inch beam divided by 180 equals approximately 0.53 inches, or about ½ inch. If the deflection exceeds ½ inch, the beam is considered overloaded and poses a safety risk.
LOAD PLAQUES: YOUR GUIDE TO SAFE CAPACITY
Every pallet rack system has a designated maximum load capacity to ensure safe operation and reduce the risk of accidents. To stay within these limits, refer to the load plaques provided by the manufacturer for each racking configuration. Load plaques should be placed at the end of each aisle to ensure they’re easily visible. Adhering strictly to these load limits helps minimize the risk of deflection.
The load plaque will typically display:
- The maximum allowable unit load, which includes the combined weight of the product and its pallet or storage container, and/or the maximum uniformly distributed load (UDL) per level.
- The typical unit load, calculated as the heaviest anticipated product weight across all beam levels in a row, divided by the number of beam levels.
- The maximum total load per bay.
- Specific storage levels that can safely support stacked unit loads.
THE APEX RACK REPAIR APP TO THE RESCUE
Download the Apex Rack Repair Mobile App to streamline your rack inspections. This free app guides you through each step of an inspection and collects all the necessary specifications to order a custom repair kit if needed. It also connects you to the Apex PROs, who can review your inspection results and provide a detailed damage report and tailored repair solution.
There are two ways to use the Apex Rack Repair App:
- DIY – Conduct a self-guided pallet rack inspection with the app. Once complete, upload your findings to the Apex Carolinas PROs for a prompt evaluation of any safety concerns.
- Leave it to the Professionals – Contact the Apex PROs for a comprehensive inspection and warehouse safety review. Our certified inspectors will come to you and perform a thorough assessment using the Rack Repair App.
The Apex Guarantee – Whether you choose the app or work directly with the Apex PROs, we guarantee a complete inspection report with an independent repair solution.
Pallet rack deflection poses serious risks if undetected. Contact your local experts at Apex Carolinas for assistance in designing and maintaining your pallet racking system. As a full-service storage solutions and material handling provider, we offer everything from professional installation to rack repair teams, ensuring your system meets all safety standards.
