Abstract: A refrigerator shelf system includes a refrigerator having a liner wall and a shelf. The liner wall defines a recess and has pairs of opposing protrusions extending into the recess. The shelf has locks extending therefrom. The locks are configured to engage the pairs of opposing protrusions when the shelf is transitioned to a horizontal position to secure the horizontal position of the shelf and facilitate the shelf supporting at least one item. The locks are configured to disengage the pairs of opposing protrusions when the shelf is transitioned to a vertical position to facilitate adjusting a height of the shelf.