a method of forming a vacuum insulated refrigerator cabinet , the method comprising providing first and second sheets of material . the first sheet of material is thermoformed over a first forming tool forming a first intermediate structure . the first intermediate structure is then thermoformed over a second forming mold to create a second intermediate structure . the second sheet of material is then sealing connected with the second intermediate structure forming an annular space . a vacuum is created in the annular space creating a vacuum insulated cabinet .