When it comes to transporting your boat, the choice between bunk trailers and roller trailers is a big one. Both have their advantages depending on the type of boat you own and where you plan to launch it. Whether you’re new to boating or looking to upgrade your trailer, understanding the pros and cons of each will help you make the best decision when you buy a boat trailer.

Bunk Trailers

Bunk trailers are the most common type you'll see at boat ramps. They use long, carpeted or plastic-covered boards (bunks) to support the hull of your boat. These trailers are typically more affordable and mechanically simpler than roller trailers, which means fewer moving parts could break or wear out over time.

One of the key benefits of bunk trailers is stability. They cradle the boat more securely, which is ideal for trailering over longer distances or on rough roads. Bunks provide consistent hull support, which can be gentler on your boat over time, especially if it's made of fibreglass.

However, launching and retrieving your boat with a bunk trailer often requires backing the trailer deeper into the water, which can be tricky if you're at a shallow or uneven ramp. If you have a lightweight boat or use a deep ramp, this might not be an issue. But for heavier boats or steep, slippery ramps, it can be more difficult without a winch assist or help from another person.

Roller Trailers

Roller trailers, on the other hand, are designed with multiple sets of rollers that allow the boat to glide off or on the trailer more easily. This can be a huge advantage at shallow ramps or when launching solo, as the boat doesn’t need to be floated off; it can be rolled right into the water.

Roller trailers are excellent for frequent launchers, especially those using a variety of ramp types. They offer more flexibility and are often preferred by owners of heavier boats who want an easier time at the ramp.

The downside? Roller trailers are usually more expensive and require more maintenance because of all the moving parts. If not properly adjusted, they can also put pressure on the wrong parts of your boat’s hull, potentially causing damage over time, especially to fibreglass boats.

Which Should You Choose?

• If you mainly use one or two ramps, and they’re deep and easy to navigate, a bunk trailer is often the better, more cost-effective choice.
• If you launch at shallow ramps or in tidal areas where water depth can vary, a roller trailer will make the process smoother.
• Bunk trailers are the best trailers for fibreglass boats, especially ones with complex hull shapes, since they offer better support.
• For aluminium boats, which tend to be lighter and more rugged, roller trailers work great.

Ultimately, your choice should depend on your boat type, towing experience, budget, and where you usually hit the water. Either way, the right trailer makes boating easier, safer, and a lot more enjoyable.