The height of a pontoon trailer can vary depending on the specific model and manufacturer. However, in general, pontoon trailers can range in height from about 2 to 4 feet off the ground, depending on the size of the pontoons and the type of trailer. It's important to ensure that the pontoon trailer you choose is the appropriate height for your pontoon boat to ensure safe and efficient loading and unloading. Additionally, it's important to check local regulations and restrictions regarding trailer height when transporting your boat on public roads.