Lack of posted weight capacity on racking can lead to OSHA citations
Pallet racks are utilized to house millions of pounds of material each day. How much weight a racking system can hold depends on a number of factors. While OSHA does not specifically require posting the load capacity rating on steel racking, they are consistently citing employers for not displaying it.
Aside from a very general “stored items must be secured” mention in 1910.176(b), OSHA has no specific racking safety standards or guidelines. Because of this, they typically cite racking hazards under the General Duty Clause of the OSH Act, which simply states that each employer must provide a workplace that is free from recognized hazards.
Exact loads can vary depending on the configuration of the pallet rack and the types of pallets used. If workers are placing loads in racks, they need to be trained to understand the weight of the load and whether or not the rack can handle it. Employers should have systems in place that include weighing pallets and materials prior to placement on the racking system. They should also maintain, and continually update, a weight inventory of all materials being stored and/or removed from the racks.
During enforcement actions, OSHA can reference other standards that could be used in times of abatement. In the case of load capacity rating, they often reference the industry standard ANSI MH16.1.
About ANSI MH16.1
Industrial steel storage racks, moveable shelf racks, rack-supported systems, and stacker racks made of hot-rolled and/or cold-formed steel structural members are covered by the MH16.1 standard. The standard is intended to be applied to the design of the storage rack structure.
One particular section (1.4.2 – Plaque) requires displaying one or more permanent plaques that contain information including:
- maximum permissible unit load,
- maximum uniformly distributed load per level,
- average unit load, and
- maximum total load per bay.
This is not to say that employers need to display a plaque on every section of steel racking. What they should pay particular attention to is where the standard mentions displaying the maximum total load per bay.
Inspectors reference section 1.4.2 of the MH16.1 standard when identifying racking hazards. For example, OSHA may state that one way to abate a racking hazard would be to include the wording on a rack label that communicates the load capacity so employees don’t overload the racking.
Other considerations
If an OSHA inspector is on site to review your racking system, they may also look for hazards associated with anchoring of the system, as well as inspection and maintenance.
It is recommended that the bottom of all columns be furnished with column base plates and be anchored to the floor with anchor bolts capable of resisting the forces caused by the loads on the rack.
Storage racks should also be inspected regularly, with sufficient clearance around them, and should not be damaged, out of plumb, or overloaded. An effective maintenance and inspection program will bring awareness to things such as keeping aisles clear and providing sufficient clearance for material handling equipment; ensuring racks are properly aligned, plumb, and level, per manufacturer’s instructions; and encourage employees to promptly report any damage to racks.
The OSHA requirements for steel racking are vague. Even though there are no specific standards that require displaying the load rating on racking, being anchored to the floor, or inspected, citations have and will be given under the General Duty Clause if discovered.
Keep in mind also, OSHA may reference other standards during enforcement actions — sometimes there are other means of abatement, so an employer doesn’t have to follow the ANSI standard, but other times, there isn’t much alternative.
Key to remember: Steel storage racks should display the maximum load capacity rating, be bolted to the floor, and inspected.