There are two main different types of this type of racking: Double-Armed and Single-Armed. There are also 3 different sizes of arms that you can opt to get which are: Extra Heavy-Duty, Heavy-Duty, and finally Standard-Arms. Each of these different sizes and capacities makes this type of racking more personal for each and every customer that walks in our doors. Making sure that each of these cantilever racks are customized for our consumer is our goal. Each arm has a capacity of up to 6,600 pounds. On the double-sided column it has a capacity of up to 85,000 pounds. Single- sided column has a capacity of up to 42,000 pounds.