Nautical Term: Shelter deck

Definition of Shelter deck

The term ‘shelter deck’ refers to a deck that is fitted from stem to stern on a relatively light superstructure. This deck, also known as the main deck, provides shelter and protection to the crew and cargo on board a vessel.

For instance, in a cargo ship, the shelter deck would be the main deck where the crew would live and work. The cargo would be stored on the decks above the shelter deck.

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