The Profile Shelf creates a durable, organized storage space in any garage. The Profile Shelf is ventilated for air flow. The Profile Shelf is constructed of heavy gauge steel with a durable baked epoxy finish. Double bars in the front and rear add strength and the low 'profile' lip allows more storage space between shelves. The Profile Shelf securely snap into the Ventilated Shelving Brackets. They are 12 inches deep and available in 30, 60 and 90 inch lengths.