Different Types of Tractor Trailers

You see them every day on the highway. Tractor trailers, also known as semi-trailers, move a whopping 68% of goods delivered in the U.S. More than 5.6 million are registered in the U.S, and there are 3.2 million truck drivers in the U.S, who collectively drive about 140 billion miles a year to get goods to their destinations. But what do you know about the different kinds of tractor trailers? You might be surprised to find out that there are several types of tractor trailers.

tractor trailer

Box Trucks

This is the most common kind of tractor trailer. The trailer is in the shape of a wedge, meaning that it is taller in the back than in the front. These trailers come in 28-foot as well as 45-foot sizes. A 45-foot wedge has a capacity of about 3,000 cubic feet.

Container Trucks

These trucks carry containers that can be shipped overseas on container ships. These containers have about half the capacity of a box truck, at 1,172 cubic feet.

Refrigerated Trucks

Also known as “reefer trucks,” these trucks are essentially box trucks that also have a refrigeration unit behind the cabin of the truck in order to keep the contents of the trailer cool.

Flatbed Truck

Flatbed trucks are used to transport things of odd or oversize dimensions that would not fit in a normal trailer.

Tanker Trucks

Tanker trucks carry liquids, and range in capacity from 1,000 to 9,000 gallons. They can carry food grade and toxic grade liquids, and often require a special license to transport the latter.


Evan Transportation was founded in 1992 by Jerry Wolfarth, who at the time had over 25 years of experience in the trucking and transportation industry. The initial operation consisted of a few trucks and drivers who were dedicated and professional. The goal of the company was to provide excellent, dependable service.

If you need materials and products moved in the Mid Atlantic region, contact Evan Transportation. We hire professional drivers with excellent driving records, and maintain a fleet of trailers and vehicles that are reliable and ready to roll.

Contact us today for all of your freight shipment needs or call us at 443-673-3365

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