There are two types of trailers for pontoons. The first is a scissor type trailer that goes under the deck. This trailer is best when you want to pull the boat out, transport it short distances, and then put it on the ground. It is also best if you launch your boat at a very shallow ramp. The disadvantage is the fact that it has a narrow wheel base. This makes it more prone to tipping if too tight a turn is made. It also tends to exaggerate bumps in the road. This type of trailer cannot be used for triple pontoon models. The second type is a drive on trailer. This trailer is best for transporting the boat long distances. It spreads the weight of the boat along bunks that the pontoons rest on. It is easier to load and unload with this trailer. The disadvantage is that it sets the boat higher off the ground. This creates wind resistance during towing. It can also make launching from a shallow ramp more difficult. The float on is the most widely used type.