Deckhouse

A cabin or berthing is an enclosed space generally on a ship or an aircraft. A cabin which protrudes above the level of a ship's deck may be referred to as a "deckhouse."

In sailing ships, the officers and paying passengers would have an individual or shared cabin. The captain or commanding officer would occupy the "great cabin" that normally spanned width of the stern with large windows. On a warship, it would be separated from the rest of the ship, and further subdivided into day and night cabins with movable panels that could be removed in time of battle to leave the deck clear the whole length of the ship.

In most modern warships, the commanding officer has a main cabin, the in-port cabin, often adjacent to the ship's central control room (operations room), and a sea cabin adjacent to the bridge. Thus, when likely to be called from sleep or attending to administration, the CO can appear at the Bridge or Ops room immediately. The sea cabin is sparsely equipped, containing just a bunk, a desk, and basic toilet facilities. The in-port cabin is more lavishly furnished, with separate bedroom and combination sitting room/office, and more elaborate toiletry facilities.

For ships intended to act as flagships, like the aircraft carrier the USS Lexington, the admiral also has a sea cabin (adjacent to the captain's sea cabin) and an in-port cabin, in addition to the captain's cabins. Admiral Fletcher's sea cabin in the USS Yorktown in World War II had a bed, an easy chair, a table, and a shower.

Officers will normally have their own cabins, which double as their offices. Some senior petty officers may have cabins for similar reasons.

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