Compartment (ship)
（重定向自Compartmentation）
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![These compartments are formed by non-structural bulkheads.](/Images/godic/202501/05/4_Aces_Brochure_April_1952_30M_Pg07-08_Veranda_Illustration2244.jpg")
A compartment is a portion of the space within a ship defined vertically between decks and horizontally between bulkheads. It is analogous to a room within a building, and may provide watertight subdivision of the ship's hull important in retaining buoyancy if the hull is damaged. Subdivision of a ship's hull into watertight compartments is called compartmentation.