Honey-Can-Do SHF800W1842 Plated Steel Shelf 18x42, White. Create the shelving unit that suits your unique space and storage needs. This 18x42 inch shelf is designed for use with an existing Honey-Can-Do shelving unit or can be mixed and matched to our other components and accessories to create the shelving unit of your dreams. Designed to hold 800lbs of evenly distributed weight when installed as part of a free standing unit. Pack of 4 plastic installation clips included. Clean white finish brings a touch of modern design to any room in the home or garage.