How much weight a pallet can hold depends on the pallet design, condition and how it is being supported. There is no single pallet load capacity. A pallet may have different ratings for loads sitting on the floor, being handled by a forklift or stored in pallet racking. Load distribution matters too. The safest answer is to use the load rating for the specific pallet and handling condition.
Pallet load capacity can vary greatly between pallets of different designs, materials and conditions. Getting it wrong can also have serious consequences, particularly when loaded pallets are placed in racks or stacked several loads high.
The Short Answer
The load capacity of a pallet is the maximum payload that the pallet can safely handle under specified conditions. Here are some published load ratings for particular pallets. These figures assume that the load is uniformly distributed and that the pallet is in suitable condition:
CHEP North America Pallets – can be edge racked to 2,800 lbs. Loads can be stacked five high with a total bearing weight of up to 10,000 lbs.
PECO Pallets – can be edge racked to 2,800 lbs.
iGPS Pallets – can be edge racked to 2,800 lbs.
GMA-style Pallets – depending on their construction, can have edge-rack capacities in the 2,000-2,800 lb range.
EPAL Pallets – have a safe working load of 1,500 kg.
CHEP Europe Pallets – have a safe working load of 1,000 kg and can be stacked to a total bearing weight, or static load, of 4,000 kg.
CHEP UK Pallets – have a safe working load of 1,500 kg and can be stacked to a total bearing weight of 6,000 kg.
CHEP Australia Pallets – have a maximum payload of 2,000 kg in drive-in racking and a total bearing weight, or static load, of 10,000 kg.
Those numbers also illustrate why asking how much weight a pallet can hold doesn’t produce one universal answer. Pallet design matters, but so does how the pallet will be supported.
Why Pallet Load Capacity Matters
Understanding pallet load capacity becomes particularly important before loaded pallets are placed in pallet racks or block stacked. Forklift operators should be alert to unfamiliar or damaged pallets that may not have adequate capacity for the load. At an enterprise level, companies can reduce the risk by establishing and enforcing inbound pallet requirements so that unsuitable pallets don’t routinely enter the facility.
The consequences of getting it wrong can be severe. Imagine a 2,000-lb pallet load stored high in a busy warehouse on a pallet without adequate edge-rack capacity. A pallet failure could send the load into the aisle or onto employees below.
Block stacking presents a different challenge. If four 2,000-lb loads are stacked vertically, the bottom pallet and lower unit load may ultimately be supporting 8,000 lbs. It isn’t enough to know that each individual pallet can carry its own 2,000-lb payload. The complete stacking arrangement has to be considered.
How Is Pallet Load Capacity Determined?
Pallet load capacity can be determined through experience, physical testing or pallet design software.
Experience remains important. Many companies and industries have established standard pallets over time that they know will safely handle familiar loads. This is common in industries ranging from soft drinks and beer to dairy and chemicals.
For less familiar or more demanding applications, physical testing can be performed in a laboratory or through appropriate field testing. Virginia Tech’s Center for Packaging and Unit Load Design provides a useful overview of pallet load-carrying capacity and laboratory testing.
Pallet designers also use software such as Pallet Design System™ (PDS) and Best Pallet™/Best Load™ to estimate pallet performance using design information and test data. For demanding applications, computer analysis can be supplemented by physical testing.
If you don’t know the capacity of a pallet you are purchasing, ask the pallet supplier for the design specifications and load-capacity information appropriate to your application. Highly consistent pallets, such as CHEP rental pallets and particular models of plastic pallets, typically have published load capacities on their specification sheets.
Example of pallet design analysis with BestLoad software. Image sourced from PalletOne.
Static, Dynamic and Edge-Rack Load Capacity
When researching pallet capacity, pay close attention to how the rating is defined. Pallets are commonly assigned different capacities depending on how they are supported and handled.
- Edge-rack or free-rack load capacity – the amount of weight the pallet can safely support when spanning rack beams without center support.
- Dynamic load capacity – the weight that can be safely handled while the pallet is being moved, such as on forklift tines. Dynamic capacity is typically higher than edge-rack capacity but lower than static capacity. It may also be relevant when a forklift is handling double-stacked loads.
- Static load capacity – the weight the pallet can safely support when stationary on a solid surface or supporting stacked loads. If four 2,000-lb pallet loads are stacked vertically, for example, the bottom pallet may be required to support a total of 8,000 lbs.
Static capacity is often substantially higher than dynamic or edge-rack capacity. The important point is to use the rating for the support condition the pallet will actually encounter rather than assuming that a single capacity number applies everywhere.
Load Distribution and the Environment Matter
Published pallet capacities generally assume a uniformly distributed load. In other words, the weight is spread reasonably evenly across the pallet deck.
Real loads aren’t always so cooperative.
A heavy piece of machinery concentrated in the center of a pallet creates a very different loading condition from cartons of the same total weight spread across the entire deck. Irregular loads that don’t cover much of the pallet surface can also concentrate stresses in particular areas.
In some applications, the product itself can bridge across pallet components and help distribute weight. In others, concentrated loads can reduce the amount of weight a pallet can safely carry. This is another reason why the total weight alone doesn’t tell the whole story.
Environmental conditions can matter as well. Temperature and humidity can affect the performance of some pallet materials, including corrugated and plastic. For example, iGPS publishes its pallet performance within a specified operating temperature range.
How Much Weight Can a GMA Pallet Hold?
Unlike highly standardized rental pallets, there is no single load-capacity rating for every 48×40 GMA-style pallet.
The 48×40 GMA-style pallet is the most widely used pallet footprint in North America and accounts for about 35% of the U.S. pallet market, according to the latest published pallet statistics. You can learn more about the basic design in our guide to GMA-style pallets.
But two 48×40 pallets that look broadly similar can perform quite differently. Lumber species and quality, deckboard and stringer dimensions, fasteners, construction and pallet condition all influence strength.
Deckboard thickness is one obvious variable. While a 5/8-inch top deckboard is commonly specified, some customers purchase pallets with half-inch or thinner deckboards to reduce pallet cost. Everything else being equal, reducing component dimensions can also reduce pallet strength.
This is why appearance and footprint aren’t enough to establish load capacity. For a demanding application, particularly edge racking, the pallet should be designed or tested for the load and support condition it will encounter.
One published PDS example for a GMA-style pallet constructed with 5/8-inch deckboards showed safe edge-rack performance in excess of 2,800 lbs and static capacity, when block stacked four loads high, of more than 3,600 lbs per load. That is an example for a particular pallet design, however, rather than a universal rating for all GMA-style pallets.
Customer Pallet Requirements Can Set the Limit
Pallet capacity isn’t always determined by what the pallet can theoretically carry. The receiving customer may impose a lower limit through its pallet specification.
Many large retailers establish detailed requirements for pallets arriving under load. These specifications can address dimensions, pallet condition, component sizes and maximum load weights.
For example, Walmart’s pallet specifications require Grade A 48×40-inch stringer pallets within specified dimensional tolerances. Deckboards must be at least 5/8 inch thick and 3.5 inches wide, and inbound stringer pallets should not be loaded above 2,100 lbs.
Other major retailers, including Albertsons, also specify pallet construction and load requirements. The larger point is that a pallet that is physically capable of carrying a particular load may still fail to meet the receiving customer’s pallet policy.
Support conditions downstream also deserve attention. Some shipments arrive on pallets that were intended primarily for transportation and floor handling rather than pallet racking. A pallet that safely carries a grocery load to a retail store, for example, should not automatically be assumed suitable for unsupported rack storage.
The same caution applies to poor-condition wood pallets. A pallet may have carried the load successfully across the warehouse floor but still be unsuitable for racking or block stacking.
The Bottom Line
In everyday operations, pallet capacity often goes unnoticed because familiar pallets are repeatedly used for familiar loads. Problems are more likely to arise when something changes: the load gets heavier, a different pallet enters the system, a damaged pallet is reused, or a load that normally sits on the floor is placed in pallet racking.
As a shipper, make sure the pallet is suitable for both the weight of the load and the support conditions it will encounter. As a forklift operator or receiver, watch for unfamiliar or damaged pallets and unusually heavy loads before placing them in racks or stacks.
The important question isn’t simply how much weight a pallet can hold. It is how much weight that particular pallet can safely hold in the way you intend to use it.
Rick LeBlanc, EMBA, is the founder and editor of Reusable Packaging News (subscribe to the free newsletter) and editor of Western Pallet Magazine. A supply chain journalist with more than 30 years of experience, he specializes in pallets, reusable packaging, material handling and related operations. Rick is co-author of Pallets: A North American Perspective and Pallets & Progress: A Collected History of Pallets and Palletized Handling 1922–1945. He is also an advisory board member of the Virginia Tech Center for Packaging and Unit Load Design. Read Rick’s full bio.