The average size of a semi truck is highly dependent on the type of truck and its purpose. Semi trucks come in a variety of sizes, from light-duty commercial trucks to the massive 18-wheelers seen on highways. The size of a semi truck affects its payload capacity, fuel efficiency, and maneuverability.
Light Duty Trucks
Light duty trucks are typically used for local deliveries, such as those made by small businesses in urban areas. These trucks are usually about 20 feet long, with a gross vehicle weight rating (GVWR) of around 19,000 pounds or less. This class of truck is usually powered by an 8-cylinder engine.
Medium Duty Trucks
Medium duty trucks are the most common type of semi truck. They range from 20 to 33 feet long and have a GVWR between 19,000 and 33,000 pounds. These vehicles are designed for regional transportation and can be powered by either an 8-cylinder or 10-cylinder engine.
Heavy Duty Trucks
Heavy duty trucks are the largest semi trucks on the road today.
They range from 33 to 53 feet long and have a GVWR between 33,000 and 80,000 pounds. These powerful vehicles are typically powered by a 12-cylinder engine and are used for long-haul transportation.
Conclusion
The average size of a semi truck depends on its purpose and can range from 20 feet to 53 feet in length with a GVWR from 19,000 to 80,000 pounds. Light duty trucks are commonly used for local deliveries while medium and heavy duty trucks are designed for regional or long-haul transportation needs.