Wind and Water Tight shipping containers are similar to Cargo Worthy as far as the quality of the shipping container goes. The doors and seals still work, but there might be too much corrosion on the outside to be stackable on a ship. These shipping containers are best used containers for storage since they still keep the elements out and a dry environment on the inside. Wind and Water Tight shipping containers can be well worth the cost if you do not plan on using the container for shipping purposes and mainly for storage.