What Is the Biggest Fishing Boat You Can Trailer?

Towing a large boat requires a capable tow vehicle, a skillful driver and some research.

- Alan Jones

The size of trailerable fishing boats has been creeping upward for decades. Fortunately, tow vehicles have added towing capacity and a host of technological aids to make towing easier and safer. Here's what information you need to hit the road safely, no matter what you have in tow.

Know Your Numbers

The most important rating to look for when shopping for a tow vehicle is its maximum towing capacity with a conventional ball hitch, as opposed to the larger fifth-wheel/gooseneck rating companies like to brag about in advertisements. Another significant number is the trailer's Gross Vehicle Weight Rating (GVWR), the maximum allowable weight of the boat, motor, gear and fuel a trailer is authorized to carry. Although hauling the max weight is DOT-legal, a good rule of thumb is to not exceed 85 percent of each capacity to provide an extra margin of safety and peace of mind.

Tow Vehicle Capacities

Half-ton trucks are among the most popular tow vehicles because of their impressive capacities when properly equipped with optional engines and towing packages. These typically include beefier suspensions, oil coolers and enhancements, like a transmission with tow mode that increases capabilities. Some modern vehicles also offer lane assist and collision-preventing braking systems.