42 Main Parts of Boat (Name & Terminology)

When you’re new to boating, it can seem like everyone is speaking a foreign language. And with the jargon ranging from everyday words to literal Latin terms, it can be tough to figure out the basics! That’s where we come in. We’re going to guide you on the most important boating parts and terminology. Once we’re done, you’ll be chatting on the docks like a pro!

Section One: Boat Parts

Section One: Boat Parts

We’ll start with the crucial parts of a boat. Some of these parts can be found in ships too, but we’re staying with the basics. For reference, a boat is smaller than a ship and mostly operates in-shore with oars, propellers, and/or a small motor. To put it simply, a ship can carry a boat, but a boat can’t carry a ship. We’ll look at the typical parts of speed boats and sailboats.

Let’s begin with the directional parts of the boat: up, down, left, right, front, and back.

  • Bow – front part of the boat
  • Stern – back part of the boat
  • Port – left side of the boat
  • Starboard – right side of the boat

You can tell which side is port and which side is starboard by looking at the lights. The portlight is red and the starboard light is green. You can also use this information when you’re thinking about right-of-way in boating. Just like traffic, green means go and red means stop.

So the boat that’s on the starboard side (i.e. the boat that’s on your right) always has the right of way. Now let’s name the boat parts from the bottom to the top of the boat. Think of scanning the boat with your eyes, starting at its highest point and working your way down.

  • Bulkhead – the ‘side walls’ of the boat
  • Gunwale – sometimes called the gunnel, it’s the bulkhead
  • Deck – the upper surface where you sit or walk
  • Hull – the outer bottom of the boat, it’s the part that touches the water
  • Bilge – the inner bottom of the boat above the hull
  • Keel – the spine or backbone of the boat, it stays underwater
  • Transom – the outer part of the stern where you attach an outboard motor
  • Aft – the inner part of the stern where seats and gear are placed
  • Forward – the inner part of the bow where seats or harpoons are placed
  • Beam – the width or breadth of the boat at its widest part
  • Freeboard – the physical distance between the gunwale and the water’s surface
  • Line – another name for rope or rigging on a boat

Next, we’ll look through the functional parts of a typical boat, whether it has sails or engines.

  • Anchor – a heavy device that sinks to the waterbed to hold the boat in place
  • Helm – the steering wheel, bridge, or console that controls the boat
  • Cockpit – another name for the enclosed area that steers the boat (console, bridge)
  • Cleats – metal fixtures where you tie your docking lines
  • All-round light – a white light that illuminates the whole boat
  • Propeller – a submerged rotor that moves the boat forward (aka prop)
  • Cabin – that’s the section where you sleep, often under the deck
  • Galley – the kitchen of the boat, usually below deck
  • Head – the toilet section of the boat, usually below deck
  • V-berth – a v-shaped bed in the cabin that often folds into a chair or table
  • Fenders – removable side cushions that are plastic or inflatable buoys
  • Hatch – a door or gateway that lets you access the lower or inner parts of the boat
  • Rod holder – think of cup holders, but these are for fishing rods
  • Livewell – a section filled with water for storing live fish
  • Swim platform – a flat section at the stern where you can get into or out of the water

Okay, now we want to talk about how the boat moves, whether it uses a sail or an engine, sometimes both. Just to be clear, all boats have propellers, but this could be a ski, outboard, inboard, stern, or duo propeller. We’ll go into detail in section two. For now, let’s talk sails.

Sailboats have the same parts as speed boats, but they also have extra parts. These include sail cloths and other functional components that facilitate analog sailing. Let’s check out some of these parts below. We’re going to focus on the most common parts and their roles.

Boat Parts

  • Mainsail – the largest sailcloth
  • Staysail – the smaller sailcloth, sometimes called a jib or genoa
  • Battens – horizontal shafts that weave through the sailcloth to stiffen it
  • Mast – the vertical pole that holds the sail cloths
  • Boom – the horizontal pole that holds the sail cloths
  • Gooseneck – the right-angled swivel joint between the boom and the mast
  • Centerboard – a submerged section of the keel that juts downward in the middle
  • Rudder – a submerged section of the keel that juts downward at the stern
  • Tiller – a handle on the rudder that lets you steer the boat
  • Pulpit – safety guardrails at the bow
  • Pushpit – safety guardrails at the stern

If you’re looking at a sailboat (or a picture of one), you’ll notice lots of rigging. And yes, each rope has a name and a function. But they’re pretty technical, so we won’t get into that. For now, just know that sailboat ropes include a forestay, backstay, kicking strap, and painter.

Section Two: Boating Terminology

Now that you’re familiar with the basic parts of a sailboat and speed boat, we’re going to look into the boating terms you’ll hear around the dock. You might hear them at a boat shop too, or in boating forums. Here’s a simple glossary. You’ll never feel out of your depth again!

1. The A-terms

Newbies sometimes feel boaters are ribbing them by just adding a- to everything. But these words do have meanings. Astern means steering in reverse. Ahead means moving forward. Adrift means loose and uncontrolled. Aground means unintentionally scraping the waterbed.

2. Outboard Engine

Outboard Engine

This is a type of external motor that’s visible on the surface of the boat. Outboard motors are usually attached to the transom at the back of the boat. They’re sometimes used to steer the boat. The number of outboard motors affects the knots and horsepower of your speed boat.

3. Inboard Engine

This is when the motor is hidden in a closed compartment. Inboard motors are often modified car engines that are placed in the hull and covered by the deck, with a door or hatch for engine access. You can’t use inboard motors to steel, so they’re connected to propellers.

4. Stern Drive Engine

We’ve mentioned that on some boats, you can use the outboard motor as a steering shaft. But this is only for stern drive engines where the tiller is attached to the rear motor. On ordinary outboards, there’s no steering mechanism connected to the transom engine.

5. Waterline

When a boat touches water, the bulk of the boat is above the waves while a smaller section stays submerged. The border between these sections is called the waterline. It’s the visual spot where the boat touches the topmost surface of the water body, leaving the hull below.

6. Draft


You can physically measure the part of the boat below the waterline. That distance is called the draft, and it describes how low the boat sits in the water, and how much of the boat stays submerged. Shallow draft boats (like pontoons) have 8 to 10 inches underwater at any time.

7. Chine

This term describes the shape and angle of the hull as it moves through the water. It can be defined as flat or round, soft or hard, with lots of overlap between. Round chines have a gentle curve (as opposed to flat hulls). Hard chines have a sharp or drastic angle e.g. V-hull.

8. Skinny Water

This is an area of shallow water where the waterbed (i.e. the ground at the bottom of the sea, ocean, pond, etc.) is roughly a foot below the surface. You’ll find a lot of skinny water inland (lakes, rivers, swamps, etc.) but you can also find skinny waters in bays, docks, or islands.

9. Choppy Water

This is deeper offshore water that’s often rough and full of waves. The currents are stronger so you need a boat that can handle these conditions. Pontoons don’t do as well in choppy water, but they rule the roost in skinny water, so that’s something to be familiar with.

10. Rigging


We mentioned this when we were talking about sailboat parts. The rigging is the grab-all term that describes the rope-work on any boat, but particularly a sailboat. If you’re climbing the rope-work to scale the sail, it’s described as ‘going aloft’. You’ll need to know your knots!

11. Scope

When you’re dropping your anchor, it’s isn’t just a matter of releasing it and you’re done. You should calculate how much of the rope or chain you need, depending on the size of your boat, depth of the water, and condition of the waterbed (rocky, sandy, etc.) This figure is the scope.

12. Mooring

The mooring is the place where your boat goes to sleep. This could be a pier, a dock, a boatyard, or even the backyard docks on waterfront properties. Sometimes, mooring means anchors and lines. But if you use it as a verb, mooring is the process of docking your boat.

13. Set the Anchor

When you drop your anchor, it helps to confirm it has a solid hold on the waterbed. Otherwise, the next time you check, your boat is gone! This process of reinforcing the anchor is called setting. Set the anchor by tugging it or by reversing the boat for 45 to 60 seconds.

14. Right of Way

Right of Way

Waterways don’t have lanes like roads do. So when two boats meet, you have to use the right-of-way guidelines we mentioned earlier (aka Rules of the Road). The boat that has right of way is called the stand-on or stay-on boat, while the other boat is the stand-off or give-way.

15. Nautical Miles

No, they’re not the same as regular miles. One nautical mile is 1,852m or 6,076.12 feet. The speed of a boat is measured in nautical miles too. 1 knot is 1.15 mph, though this is often rounded off to 1.2mph. But don’t confuse speed knots with the rigging knots on the ropes.

16. Heeling and Gybing

When your boat is heeling, it means its leaning into the water and looks like it’s about to fall in. Meanwhile, to gybe (sometimes spelled as jibe) is to swing the boom. This changes how the sail cloths respond to each other and catch the wind, so it changes the boat’s direction.

17. Heading and Bearing

The heading is the direction your boat is sailing (e.g. due north, etc.) The bearing is a way of describing that heading, but you use angles and degrees. If you’re bearing off, you’re turning your boat away from the wind. But if you’re tacking, you’re turning the bow into the wind.

18. Bridge Clearance

Bridge Clearance

Some boats (like aluminum fishing boats or rowboats) have a flat top. Others have an open-top covered with optional canvas canopies called biminis or dodgers. But if the steering heel is enclosed in a console or bridge, the bridge clearance is the height of the tallest sub-section.

19. Roping Terms

When you’re referring to the rigging, you may hear terms like ‘make fast’ which means to secure the rope by knotting it carefully. Or ‘cast off’ which means to release the docking lines and set off. Also, the ropes on your sail cloths are sometimes described as sheets or lines.

20. Anchoring Terms

We’ve talked a bit about anchors already, but it helps to know a sea anchor is a boat brake that’s different from a regular anchor. It floats behind the boat to create drag and slow the boat. Pulling your anchor back into the boat is called retrieving or weighing your anchor.

21. Movement Terms

We’ve mentioned tacking (turning the bow), which is also called coming about. And we’ve talked about jibing (swinging the boom to turn the stern). When you tack in a zigzag to dodge wind, that’s called beating. When you drive directly into the wind, that’s called running. And when you drive your boat perpendicular to the wind (aka crosswind), that’s called reaching.

22. Course


The route you’ve chosen to sail is called your course, so you can be on-course or off-course. If you’re smoothly moving forward then your boat is making headway. The waves that your propeller forms behind your boat are called the wake (hence wake surfing or wakeboarding).

23. Ballast

When a boat is sinking, you might throw cargo overboard to make the boat lighter. If you plan to retrieve these items, you can mark them with a buoy. This is called lagan. But if you add weight to the boat to make it more stable (e.g. water, stone, metal), this is called ballast.

24. Kill Switch

As a safety feature, a small lanyard ties the boat driver to the cockpit or steering wheel. If the driver leans too far back, gets distracted, or loses control, the lanyard will tighten and eventually pull away, automatically turning off the engine. Hence the name, Kill Switch.

25. Accidental / Flying Jibe

Accidental / Flying Jibe

When you jibe the boat (which is the opposite of tacking), you use the boom to maneuver the stern of the boat out of the wind. But sometimes, this happens unintentionally and the boom swerves across the boat aka sailing by the lee. This mess is called accidental gybing.

Do you know any other boating parts or terminology we left out? Tell us in the comments!

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