Plastic corrugated case

1. A packaging case for containing at least one container, the case comprising:

a first sheet that forms

a first vertical panel of the case having a first edge with a first bead and a second edge with a second bead, the second edge being opposite the first edge,

a first horizontal panel of the case having a first edge, the first edge having a first bead, and a second edge opposite the first edge, the second edge having a second bead, and

a second vertical panel of the case having a first edge with a first bead and a second edge with a second bead, the second edge being opposite the first edge; and

a second sheet that connects to the first sheet and forms

a third vertical panel of the case having a first edge with a first groove and a second edge with a second groove, the second edge being opposite the first edge,

a second horizontal panel of the case having a first edge, the first edge having a first groove, and a second edge opposite the first edge, the second edge having a second groove, and

a fourth vertical panel of the case having a first edge with a first groove and a second edge with a second groove, the second edge being opposite the first edge,

wherein the first bead of the first vertical panel connects to the second groove of the fourth vertical panel,

the second bead of the first vertical panel connects to the second groove of the third vertical panel,

the first bead of the second vertical panel connects to the first groove of the fourth vertical panel,

the second bead of the second vertical panel connects to the first groove of the third vertical panel,

when the first sheet is laid flat, the first beads of the first vertical panel, the first horizontal panel and the second vertical panel are co-linear, and the second beads of the first vertical panel, the first horizontal panel and the second vertical panel are co-linear, and

when the second sheet is laid flat, the first grooves of the third vertical panel, the second horizontal panel and the fourth vertical panel are co-linear, and the second grooves of the third vertical panel, the second horizontal panel and the fourth vertical panel are co-linear.

2. The case of claim 1 , wherein the first sheet has a partially hollow cross section.

3. The case of claim 2 , wherein the second sheet has a partially hollow cross section.

4. The case of claim 1 , wherein the second sheet as a partially hollow cross section.

5. A shipping and display system comprising:

a plurality of containers; and

the case of claim 1 ,

wherein the plurality of containers are contained within the case.

6. The system of claim 5 , wherein the case and at least a portion of the plurality of containers are for jointly supporting a top load force to which the portion of the plurality of containers are to be subjected.

7. The system of claim 6 , wherein the case and the plurality of containers are for jointly supporting a top load force to which the plurality of containers and the case are to be subjected.

8. The system of claim 5 , wherein one of the first horizontal panel and the second horizontal panel is a top of the case and has an underside surface,

at least one of the plurality of containers has a top surface,

the underside surface of the top of the case rests on the top surface of the at least one container when the case is subjected to a top load force, and

the case is designed so that the case supports a predetermined amount of the top load force.

9. The system of claim 8 , wherein the predetermined amount is more than 10% of the top load force.

10. The system of claim 9 , wherein the predetermined amount is more than 20% of the top load force.

11. A packaging case for containing at least one container, the case comprising:

a first sheet that forms

a first vertical panel of the case having a first edge with a first bead and a second edge with a second bead, the second edge being opposite the first edge,

a first horizontal panel of the case having a first edge and a second edge opposite the first edge, and

a second vertical panel of the case having a first edge with a first bead and a second edge with a second bead, the second edge being opposite the first edge; and

a second sheet that connects to the first sheet and forms

a third vertical panel of the case having a first edge with a first groove and a second edge with a second groove, the second edge being opposite the first edge,

a second horizontal panel of the case having a first edge and a second edge opposite the first edge, and

a fourth vertical panel of the case having a first edge with a first groove and a second edge with a second groove, the second edge being opposite the first edge,

wherein the first bead of the first vertical panel connects to the second groove of the fourth vertical panel,

the second bead of the first vertical panel connects to the second groove of the third vertical panel,

the first bead of the second vertical panel connects to the first groove of the fourth vertical panel,

the second bead of the second vertical panel connects to the first groove of the third vertical panel and,

wherein the first edge of one of the third vertical panel and the fourth vertical panel is thicker than a central region of the second sheet.

12. The case of claim 11 , wherein the second edge of one of the third vertical panel and the fourth vertical panel is thicker than a central region of the second sheet.

13. The case of claim 1 , wherein

the first bead of the first vertical panel extends along the entire length of the first edge of the first vertical panel and the second bead of the first vertical panel extends along the entire length of the second edge of the first vertical panel;

the first bead of the first horizontal panel extends along the entire length of the first edge of the first horizontal panel and the second bead of the first horizontal panel extends along the entire length of the second edge of the first horizontal panel;

the first bead of the second vertical panel extends along the entire length of the first edge of the second vertical panel and the second bead of the second vertical panel extends along the entire length of the second edge of the second vertical panel;

the first groove of the third vertical panel extends along the entire length of the first edge of the third vertical panel and the second groove of the third vertical panel extends along the entire length of the second edge of the third vertical panel;

the first groove of the second horizontal panel extends along the entire length of the first edge of the second horizontal panel and the second groove of the second horizontal panel extends along the entire length of the second edge of the second horizontal panel; and

the first groove of the fourth vertical panel extends along the entire length of the first edge of the fourth vertical panel and the second groove of the fourth vertical panel extends along the entire length of the second edge the fourth vertical panel.