What Are the Different Areas on a Cargo Ship: An Explanation

Cargo ships might look like steel giants from the outside, but on the inside they’re highly organized environments with designated spaces for work, living, navigation, and safety. Each area on board plays a specific role in ensuring the vessel operates efficiently and safely during long voyages.  

Understanding these spaces is useful not only for people working in the maritime industry on land, but also for anyone who wants to become a seafarer – as well as people who are just curious about how modern merchant vessels function behind the scenes. 

In this Martide blog post, we’re going to take a look at the key areas you’ll find on a container or cargo ship and below you’ll find brief snapshots of what that space is used for and why it matters.  

An Explanation of the Different Parts of a Ship 

We’ve tried to dive into all the main parts of a cargo or container ship, although there are countless other small (and not so small!) spaces found on commercial vessels, from laundry rooms to storage lockers and beyond.  

Hint: Click the links in each section to explore each of the areas in more detail, if you really want to get down to the nitty-gritty! 

The Decks on a Cargo Ship 

A cargo ship is divided vertically into decks that separate workspaces, machinery spaces, and living areas. The Main Deck typically runs the full length of the vessel and acts as the boundary between the accommodation and cargo areas.  

Below it are machinery and technical spaces. Above it are operational areas such as the Bridge Deck and Boat Deck.  

Deck layout depends on the ship type, but in general, the deck system helps organize the vessel, improve safety, and support the movement of crew and equipment. Seafarer jobs that typically work on deck are Able Seamen, Ordinary Seamen, Bosuns and Deckhands. 

Read more: Everything You Need to Know About Ordinary Seaman Jobs 

The Crew Mess 

The crew mess is where seafarers eat their meals and take breaks. It is designed for comfort and practicality, giving crew members a place to relax away from their duties. Mealtimes are a key part of maintaining morale on board, especially during long voyages.  

The atmosphere is usually informal, and the mess is often equipped with a TV, coffee station, and noticeboards for announcements. This is also where the job title of Messman comes from.  

An entry level seafarer job, the Messman is the go-to guy (or girl) on the vessel when it comes to anything related to serving food and general hygiene and cleanliness.  

The Galley 

The galley is the ship’s kitchen. It is typically managed by a Chief Cook or Cook who prepares meals for the entire crew. Galleys are compact yet highly organized, built to operate safely in all sea conditions.  

You’ll find industrial-grade equipment designed to stay secure in rough weather. Food storage areas are usually nearby and include dry stores, refrigerators, and freezers. 

The Superstructure 

The superstructure refers to the part of the ship built above the Main Deck. Essentially, it’s the big white ‘building’ that sticks out of the top of the ship!  On cargo ships, this area usually contains the accommodation block, navigation spaces, and sometimes machinery control rooms.  

Its location and design vary depending on the ship type. For example, on container ships it is found toward the stern to improve visibility over cargo stacks. 

The Accommodation Block

The accommodation block houses crew cabins, recreation rooms, offices, washrooms, and other living spaces. Cabins usually include a bed, desk, and private bathroom, although size and comfort vary depending on ship age and flag state requirements, as well as on a seafarer’s rank and seniority. 

The accommodation area is equipped with heating, ventilation, and air conditioning to ensure a safe and comfortable living environment on long voyages. 

The Bridge 

The bridge is the navigational center of the ship. This is where officers monitor the vessel’s position, speed, and heading. It includes instruments such as radar, GPS, ECDIS, and communication systems. Access is restricted to maintain safety and focus, especially during critical operations like port entry. 

Working on the ship’s bridge, you’ll find officers, including the Chief Officer and Second Officer as well as the ship’s Captain – known as the Master on commercial cargo vessels. 

Read more: Everything You Need to Know About Ship’s Master Jobs 

The Wheelhouse 

The wheelhouse is part of the bridge and contains the controls used to steer the ship. On modern vessels the wheelhouse is integrated into the bridge layout, but the term is still used to describe the area where the helm, engine controls, and navigational displays are found. The design provides clear visibility and quick access to essential controls. 

The name ‘wheelhouse’ comes from the days when ships were steered by a large wheel as this is where the wheel would have been located. Interesting fact: you’ll also find a wheelhouse on submarines and spacecraft. 

The Engine Room 

The engine room is one of the most important and complex areas on a cargo ship. It houses the main engine, generators, pumps, compressors, and other essential machinery.  

This space is staffed by Marine Engineers and Oilers who monitor and maintain equipment around the clock. The environment is hot, noisy, and carefully regulated for safety. Automation systems provide critical data to both engine room staff and officers on the Bridge. 

The Forecastle 

The forecastle, often shortened to fo’c’sle, is located at the forward part of the vessel. It typically contains mooring equipment such as winches, ropes, and anchors. The area may also include storage lockers and access points to forward compartments.  

During docking and undocking operations, the forecastle is one of the busiest places on board as the deck crew handle lines (ropes) and anchoring systems.

The Cargo Holds 

Cargo holds are the large enclosed spaces where bulk cargo, general goods, or containerized loads are stored. Their design varies depending on the ship type: Bulk carriers have wide, open holds for dry cargo like grain or ore, while container ships use cell guides for stacked containers.  

Proper loading and securing of cargo are essential to maintain the ship’s stability and prevent damage. 

Read more: How Do Cargo & Container Ships Handle Rough Seas? 

The Sick Bay 

A part of the ship that no one wants to find themself in! The sick bay is the ship’s medical treatment room. It is equipped with supplies for first aid, basic medical care, and emergency response. The designated Medical Officer or another trained crew member manages this space.  

Regulations require ships to carry specific medical equipment and pharmaceuticals suitable for long periods at sea where access to shore-based healthcare may be limited. 

Frequently Asked Questions (FAQ) About the Areas on a Cargo Ship 

To summarize, here’s a breakdown of the different areas on a cargo or container ship and their uses and purpose. 

What are the main areas on a cargo ship? 

Cargo ships include living spaces, operational areas, machinery spaces, and cargo compartments. Common areas include the bridge, engine room, accommodation, crew mess, galley, decks, cargo holds, and specialized areas like the forecastle and sick bay. 

What is the purpose of the bridge on a ship? 

The bridge is the navigation control center. Officers operate the ship’s systems, monitor conditions, and communicate with ports and nearby vessels. 

How many decks does a cargo ship have? 

The number varies depending on the design, but most cargo ships have several decks that divide accommodation, machinery, and operational areas. Typical examples include the Main Deck, Boat Deck, and Bridge Deck. 

What happens in a ship’s engine room? 

The engine room on a ship houses propulsion equipment, generators, pumps, and other systems that keep the vessel running. Engineering officers and ratings oversee operations and maintenance. 

Where do seafarers eat and relax? 

Crew members use the crew mess for meals and breaks. The Accommodation block also includes recreational spaces such as lounges or gyms. 

What is the sick bay used for on a ship? 

The sick bay provides medical treatment and stores emergency supplies. It is used for injuries, illness, and routine care during voyages. 

Read the next article in this series: What Are the Different Decks on a Cargo Ship: A Complete Guide