What Is Double & Triple Trucking?

By nature, truck drivers are highly adaptable, reacting to sudden traffic, weather, and schedule changes. They’re a perfect fit for the commercial transport industry, which offers many types of loads that need to be delivered. Over time, drivers can earn endorsements to deliver specialized hauls, increasing their wages. One of the most popular certifications is for doubles and triples, sometimes known as longer combination vehicles (LCV). For more information on this exciting career advancement, consult the guide below. 

How Do You Transport Double & Triple Loads? 

Rather than a single trailer, LCV truck drivers transport two or three trailers at a time, connected to each other. 

Drivers new to double and triple trucking will notice differences in handling, including more space for lane changes and parking. Since the truck is pulling extra weight, it will also take more time to speed up and slow down. Adapting to the new operation will soon become second nature, especially after passing the endorsement exam. 

How Do Truckers Become Certified for Doubles & Triples? 

Truck Driver

Truckers need to pass a written knowledge exam to receive endorsement T, legally allowing them to haul two or three trailers. According to Driving Tests, Ohio’s exam has 20 questions, similar to other endorsement tests. The exam will cover the truck driver’s knowledge of the unique aspects of double and triple trailers, including:

  • How to couple and uncouple the trailers. 
  • How to handle the vehicle.
  • How to maintain vehicle stability. 
  • Proper trailer placement.
  • Challenges, like scaling steep grades, increased passing time, and other drivers. 

What Are Safety Tips for Double & Triple Load Truckers?

Check that the air brake system works for each trailer for safe deceleration. The heaviest trailer should be closest to your rig to enhance stability when in motion. The second and third trailers should also be connected with a converter dolly. It provides a fifth wheel that’s mounted onto one or two of the axles, coupling the trailers. Be sure to inspect the dolly’s air tank drain valve is closed to ensure proper air pressure for the brakes. While these procedures may seem extensive, they are still an extension of the ones you learn in your CDL program. With practice, your inspections will become more efficient, and you’ll have a new skill that will increase your wages. 

For over 40 years,Hamrick School’s students have become some of the most well-respected truck drivers in the industry. Enrollees are given a strong foundation with classroom and operational lessons needed to begin their new careers. The instructors are also constantly updated to match the modernization of the industry. Their robust job placement program helps graduates get on the road sooner. Military veterans interested in the industry’s benefits should visit the school’s website or call their Medina, OH, location at (330) 239-2229. 

  • OH Reg. #2057
  • ODPS License #1439-2369