The Upright is used to create an organized storage space with the Rail. All freedomRail products have 30% more steel than competitors, making it 50% stronger. Brackets may be hung at 1 inch increments. Spacing tip: At 24", the system will hold 100lbs per foot, at 30" it will hold 75lbs per foot and at 36" it will hold 50lbs per foot. 1Wx30Hx1D