Dual asymmetrical and symmetrical architecture cantilever positioning

1. A refrigerator appliance comprising:

a compartment within the refrigerator appliance for storing food items in a cooled environment, the compartment comprising:

a liner defining a rear wall of the compartment,

a first vertical support rail attached to the rear wall,

a second vertical support rail attached to the rear wall wherein the second vertical support rail is offset in a generally horizontal direction from the first vertical support rail, and

a cover attachable to the liner on the rear wall of the compartment, the cover including a vertical slot extending therethrough and configured to align with and allow access to one of the first vertical support rail and the second vertical support rail when the cover is attached to the liner, while a portion of the cover is positioned over and prevents access to the other of the first vertical support rail and the second vertical support rail;

a shelf support arm that is selectively mounted to said one of the first vertical support rail and the second vertical support rail that is accessible via the vertical slot; and

a shelf panel configured to attach to the shelf support arm to thereby be supported within the compartment.

2. The refrigerator appliance according to claim 1 , wherein the liner includes an air tower extending outwards from the rear wall, and the cover is indirectly attached to the liner via the air tower.

3. The refrigerator appliance according to claim 2 , wherein an aperture is formed into the air tower.

4. The refrigerator appliance according to claim 3 , wherein the air tower extends outwards from the rear wall at a first distance, and the aperture extends completely through the air tower.

5. The refrigerator appliance according to claim 4 , wherein the first vertical support rail and the second vertical support rail are positioned in the aperture formed into the air tower.

6. The refrigerator appliance according to claim 3 , wherein an outer profile of the cover corresponds to an outer profile of the air tower.

7. The refrigerator appliance according to claim 3 , wherein the cover is positioned over the aperture and attached to the air tower.

8. The refrigerator appliance according to claim 1 , wherein one of the first vertical support rail and the second vertical support rail aligns with a plane bisecting the compartment into two equal halves in the horizontal direction.

9. The refrigerator appliance according to claim 3 , wherein the aperture comprises a top portion, a bottom portion, and first and second opposing side portions, and wherein the first and second opposing side portions traverse a generally vertical direction with respect to the rear wall.

10. The refrigerator appliance according to claim 9 , wherein the bottom portion of the aperture comprises a pointed tip that divides a flow of air into a first flow path and a second flow path, and wherein the first flow path and the second flow path are positioned adjacent the first and second opposing side portions, respectively.

11. The refrigerator appliance according to claim 5 , wherein at least one of the first vertical support rail and the second vertical support rail extends from the rear wall at a second distance, and wherein the first distance is greater than the second distance.

12. The refrigerator appliance according to claim 5 , wherein the first vertical support rail extends from the rear wall at a second distance, the second vertical support rail extends from the rear wall at a third distance, and wherein the second distance and third distance are equal.

13. A refrigerator appliance comprising:

a compartment within the refrigerator appliance for storing food items in a cooled environment, the compartment comprising:

a liner defining a rear wall of the compartment, the liner including an air tower that extends outwards from the rear wall and includes a centrally located aperture formed therethrough,

a first vertical support rail attached to the rear wall,

a second vertical support rail attached to the rear wall wherein the second vertical support rail is offset in a generally horizontal direction from the first vertical support rail, and

a cover positioned over the aperture and attachable to the air tower, the cover including a vertical slot extending therethrough and configured to align with and allow access to one of the first vertical support rail and the second vertical support rail when the cover is attached to the air tower, while a portion of the cover is positioned over and prevents access to the other of the first vertical support rail and the second vertical support rail;

a shelf support arm that is selectively mounted to said one of the first vertical support rail and the second vertical support rail that is accessible via the vertical slot; and

a shelf panel configured to attach to the shelf support arm to thereby be supported within the compartment.

14. The refrigerator appliance according to claim 13 , wherein the air tower extends outwards from the rear wall at a first distance, and the aperture extends completely through the air tower.

15. The refrigerator appliance according to claim 14 , wherein the first vertical support rail and the second vertical support rail are positioned in the aperture formed into the air tower.

16. The refrigerator appliance according to claim 14 , wherein at least one of the first vertical support rail and the second vertical support rail extends from the rear wall at a second distance, and wherein the first distance is greater than the second distance.

17. The refrigerator appliance according to claim 13 , wherein one of the first vertical support rail and the second vertical support rail aligns with a plane bisecting the compartment into two equal halves in the horizontal direction.