Abstract: A method is disclosed for enclosing a large cylindrical container within an existing refrigerated railway car by affixing structural framework to the container for supporting vertical forces, removing one end of the railway car, sliding the container, which is supported in a horizontal position within the railway car, securing the container in place by structural members extending from the supporting framework of the container through the floor to the center sill, and replacing the end of the railway car. Structural members are provided to transmit longitudinal forces to one end wall and to a bulkhead position near the other end wall.