Some advantages of using an aluminium trailer for a boat are its weight, strength, durability and expense. Additionally, the boat can be launched easily since there is more support on the hull of the boat.
Aluminium trailers are lightweight and give better fuel efficiency compared to other trailers, since the sum total weight of the boat and trailer is less than other trailers. Its weight makes the boat trailer easy to maneuver. Aluminium trailers are made of aluminium alloys and thereby give the best strength-per-weight ratio. They are corrosion or rust free and last longer.
Compared to other types of trailers, aluminium trailers are less expensive.