Every pallet has three different load capacity ratings: static, dynamic, and racking. Understanding the differences is critical for safety, compliance, and preventing costly product damage.
Static load capacity is the maximum weight a pallet can support while sitting stationary on a flat, level surface. This is always the highest rating because the weight is evenly distributed with no movement forces. A standard GMA pallet has a static load capacity of approximately 5,000 lbs.
Dynamic load capacity is the maximum weight a pallet can support while being lifted and moved by a forklift or pallet jack. This rating is lower than static because the pallet must withstand the additional forces of acceleration, deceleration, and vibration during movement. The same GMA pallet has a dynamic capacity of approximately 2,500 lbs.
Racking load capacity is the maximum weight a pallet can support when stored on warehouse racking, where only the edges of the pallet are supported. This is always the lowest rating because the pallet must bridge the gap between rack beams without sagging or breaking. Our GMA example drops to approximately 2,000 lbs for racking.
Several factors affect actual load capacity: wood species (hardwood vs. softwood), moisture content, pallet condition, load distribution, and construction type (stringer vs. block). A new hardwood block pallet will have significantly higher capacity than a used softwood stringer pallet.
Always use the most conservative applicable rating for your application. If your pallets will be racked, use the racking load capacity — not the static or dynamic rating. Overloading pallets is one of the most common causes of warehouse accidents.
When in doubt, ask your pallet supplier for specific load ratings. At Riverside, we provide load capacity documentation for all our products and can recommend the right pallet construction for your specific weight requirements.