A wind and watertight shipping containers is a used shipping container that is between 10 – 15 years old and retired from the container shipping lines.
You can expect visible dents and rust but what is most important is that the shipping container is wind and watertight and in good condition. This means it to have no cracks or holes, the floor is in good condition and that the door seals are tight enough to keep out any wind or water. If you were to stand inside the container with the doors closed, you should not see any light. It is important to get a WWT container to keep the goods you plan to store inside secure from weather elements.