Semi Trucks For Sale

About Semi-Trucks

Semi-trucks, also known as “tractor-trailers,” are the backbone of the transportation industry. These on-highway trucks are designed to use a fifth wheel hitch to haul goods and materials with dry van semi-trailers, refrigerated (reefer) semi-trailers, flatbed semi-trailers, and more.

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2026 Freightliner Cascadia 126 Sleeper Semi-Truck

As Class 8 trucks with a gross vehicle weight rating (GVWR) of 33,001 pounds (14,969 kilograms) or more, semi-trucks have powerful diesel engines and robust suspensions. They are also frequently referred to as “semi-tractors,” “heavy-duty trucks,” “tractor-trailer trucks,” “commercial trucks,” and “heavy-haul trucks.”

Major Types Of Semi-Trucks

As the leading sales platform in the commercial transportation industry, TruckPaper.com makes it easy to find the new or used semi-truck you’re looking for. The category icons atop its homepage begin with the two main categories of Class 8 haul trucks, namely day cabs and sleeper trucks.

Day Cab Trucks

A day cab truck has a short cab with a rear wall directly behind the driver’s seat. Designed for shorter routes that allow drivers to return to base the same day as they depart, day cab trucks’ cabins do not need sleeping accommodations or living space.

An extended cab semi-truck in the day cab category has extra legroom, headroom, and/or room to recline, as well as additional storage space. Crew cab semi-trucks, which have a second row of seats, are very rare in the Class 8 day cab haul truck category, although you will find more crew cabs in vocational trucks of various size classes.

Sleeper Trucks

Sleeper trucks have cabins that are much longer from front to back, providing enough room for a rear bunk (or two) for the driver to sleep in, and in many cases also include dining space and extra storage. These over-the-road (OTR) trucks are made for lengthier trips that take more than a day to complete. Sleeper trucks are categorized by the height of their cab roof, which correlates to how much interior height they have:

• Flat-top sleeper truck cabs generally have interior heights of 4.6 to 5 feet (1,400 to 1,500 millimeters).
• Mid-roof sleepers with interior heights between 5 and 6 ft (1,800 mm), allowing many drivers to stand completely upright in the cab.
• Raised-roof sleeper trucks have the tallest roofs and 6 ft or more of standing room. In fact, the Volvo VNL 760 and VNL 860 have up to a whopping 8.5 ft (2,600 mm) of interior height.

Semi-Truck Specifications To Consider

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2026 Kenworth T680 Day Cab Semi-Truck

As a semi-truck buyer, there are key points to consider before you make a purchase:

• Mileage 
• Model year
• Engine: manufacturer, horsepower, fuel economy, overhaul status
• Transmission: automatic, manual, or automated manual
• Rear axle configuration: single, tandem (2), tri (3), quad (4)
• Drive configuration: 6x4 (six wheels, four of which are drive wheels), 4x2, 6x2, 8x4
• Price range