How much can a trailer hold based on axle size? The weight a trailer can hold based on its axle size depends on the axle’s weight rating, but also on the trailer’s design, frame strength, tire capacity, and suspension. A general rule of thumb is to choose an axle with a weight rating slightly higher than your trailer’s maximum loaded weight. How do I know what size axle I need for my trailer? The size of the axle you need depends on factors like trailer weight, load distribution, and intended use.
