The 215-MUH42120A Jaken Pallet Rack Upright offers a robust bolt-together design, featuring 3" x 3" columns and 5" x 8" seismic base plates for enhanced stability. Ideal for warehouse and industrial shelving, this upright supports heavy-duty applications with impressive capacities—16,100 lbs for Regular Duty and 23,300 lbs for Heavy Duty. Perfect for organizing storage in manufacturing floors and distribution centers.