10 Different Types of Boat Trailers
If you own a boat or are thinking about buying one, a boat trailer is just as essential as the boat itself. The right trailer allows you to transport your boat safely, launch and retrieve it with ease, and store it when it’s not in use.
However, not all boat trailers are the same. The type of boat trailer you choose depends on your boat’s size, weight, and how you plan to transport it.
In this guide, you’ll learn about the different types of boat trailers, their features, and how to choose the best one for your needs.
1. Bunk Trailers
What Is a Bunk Trailer?
A bunk trailer uses horizontal wooden or carpeted bunk boards to support the boat’s hull. The bunks run parallel to the boat and provide a stable resting surface.
Best For:
- Fiberglass and aluminum boats
- Freshwater use
- Boats that don’t require frequent launching and retrieval
Pros:
✔ Simple and durable design
✔ Provides strong support for the boat’s hull
✔ Less expensive than other trailer types
Cons:
✖ Requires deeper water for launching
✖ Can be harder to load and unload compared to a roller trailer
2. Roller Trailers
What Is a Roller Trailer?
A roller trailer uses multiple rolling wheels instead of bunks to support the boat. These rollers help guide the boat on and off the trailer easily.
Best For:
- Heavier boats
- Boats that need frequent launching and retrieval
- Shallow water areas
Pros:
✔ Easier launching and loading, even in shallow water
✔ Requires less submersion than a bunk trailer
✔ Great for solo boaters
Cons:
✖ More expensive than bunk trailers
✖ Rollers may require more maintenance
3. Float-On Trailers
What Is a Float-On Trailer?
A float-on trailer allows you to drive or float your boat onto the trailer in the water. These are commonly used with bunk-style supports.
Best For:
- Large boats
- Boats stored at a marina
- Deep-water launching locations
Pros:
✔ Easy to use for larger boats
✔ Reduces strain on the boat’s hull
✔ Less physical effort required for loading
Cons:
✖ Requires a deeper boat ramp
✖ Not ideal for areas with rough water or strong currents
4. Keel Roller Trailers
What Is a Keel Roller Trailer?
A keel roller trailer is a hybrid between a bunk and roller trailer, featuring a series of rollers positioned along the boat’s keel.
Best For:
- Boats with a deep-V hull
- Long-distance towing
- Shallow or uneven ramps
Pros:
✔ Offers good hull support
✔ Easier launching and retrieval compared to standard bunk trailers
✔ Works well in different water conditions
Cons:
✖ More expensive than basic bunk trailers
✖ Requires regular maintenance of the rollers
5. Pontoon Boat Trailers
What Is a Pontoon Boat Trailer?
A pontoon trailer is designed specifically for pontoon boats, featuring two parallel bunks or cradles to hold the pontoons securely.
Best For:
- Pontoon boats of all sizes
- Boats used in lakes and rivers
- Owners who store their boat on land
Pros:
✔ Provides secure support for pontoons
✔ Available in both bunk and scissor-style designs
✔ Suitable for larger and heavier pontoon boats
Cons:
✖ Not compatible with traditional V-hull boats
✖ Scissor-style trailers require careful loading
6. Catamaran Boat Trailers
What Is a Catamaran Boat Trailer?
A catamaran trailer is designed to accommodate the twin-hull structure of a catamaran. It typically features two long bunks or separate wheel systems for each hull.
Best For:
- Catamarans and twin-hull boats
- Offshore and sport fishing boats
- Boats with wide beam designs
Pros:
✔ Specifically designed for catamarans
✔ Provides excellent weight distribution
✔ Easier loading and unloading compared to a regular bunk trailer
Cons:
✖ Not suitable for single-hull boats
✖ Can be wider than traditional trailers, requiring extra storage space
7. Galvanized Steel Trailers
What Is a Galvanized Steel Trailer?
A galvanized steel trailer is a heavy-duty trailer designed for saltwater use. The steel is treated with a corrosion-resistant coating to prevent rust.
Best For:
- Boats used in saltwater
- Heavy-duty use and long-distance hauling
Pros:
✔ Corrosion-resistant for saltwater environments
✔ Strong and durable construction
✔ Can handle heavy boats
Cons:
✖ Heavier than aluminum trailers
✖ Can still corrode over time if not maintained properly
8. Aluminum Boat Trailers
What Is an Aluminum Boat Trailer?
An aluminum boat trailer is lightweight, rust-resistant, and ideal for towing in coastal and saltwater conditions.
Best For:
- Saltwater environments
- Smaller to mid-sized boats
- Owners looking for a lightweight alternative
Pros:
✔ Lightweight and fuel-efficient for towing
✔ Rust-resistant and long-lasting
✔ Requires less maintenance compared to steel trailers
Cons:
✖ More expensive than steel trailers
✖ May not be as strong for heavier boats
9. Single-Axle Boat Trailers
What Is a Single-Axle Boat Trailer?
A single-axle trailer has only one set of wheels and is designed for smaller boats.
Best For:
- Boats under 20 feet
- Short-distance towing
- Casual boaters
Pros:
✔ Easier to maneuver and store
✔ Less expensive than dual-axle trailers
✔ Requires less maintenance
Cons:
✖ Not ideal for heavy boats
✖ Less stability for long-distance travel
10. Tandem (Dual-Axle) Boat Trailers
What Is a Tandem-Axle Boat Trailer?
A tandem-axle trailer has two sets of wheels for better weight distribution and towing stability.
Best For:
- Boats over 20 feet
- Long-distance highway towing
- Rough terrain
Pros:
✔ More stable and smoother towing
✔ Handles heavier boats better
✔ Less tire wear compared to single-axle trailers
Cons:
✖ More expensive than single-axle trailers
✖ Harder to maneuver in tight spaces
How to Choose the Right Boat Trailer
When selecting a boat trailer, keep these factors in mind:
- Boat Size & Weight: Ensure the trailer can support your boat’s length and weight.
- Hull Type: Choose a trailer that matches your boat’s hull shape (V-hull, pontoon, or catamaran).
- Launch Conditions: Consider whether you’ll be launching in shallow or deep water.
- Towing Distance: If you tow long distances, opt for a tandem-axle trailer for added stability.
- Material: Galvanized steel is best for saltwater, while aluminum is lighter and more corrosion-resistant.
- Budget: Bunk trailers are usually more affordable, while roller trailers provide more convenience.
Final Thoughts
A boat trailer is a key investment that ensures safe and easy transportation for your boat.
By understanding the different types of boat trailers, you can choose one that fits your needs, whether you’re a casual boater, an offshore fisherman, or a long-distance traveler.
The right trailer will not only protect your boat but also make your boating experience smoother and more enjoyable. So, take the time to find the best trailer for your needs—you’ll thank yourself the next time you hit the water!