The Cargo Shelf includes a set of adjustable mounting plates which attach to the Universal Mounting Brackets and allow for three different height settings. With no mats or floor liners interfering, the bottom lip of the shelf has 17″ of clearance from the floor in the lowest setting. From there it can be raised up to 6 inches in 2″ increments. (It’s actually possible to get creative by flipping the mounting plates over and coming up with additional positions as well.)