The brackets provide immense shelf space and rigid stock storage without interfering with valuable floor space. They provide superior strength while not being bulky and heavy. Our brackets pay for themselves in labor saving the first time they are used. Think about the saving achieved when they are used over and over again. All container shelves are powder coated for durability, and longevity. Rated for 550 lbs per bracket arm. Rated for 1100 lbs per bracket.