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Semi-trucks are responsible for moving most of the country&#;s freight, making them an essential part of the supply chain and everyday living. While most people see them all over the nation&#;s highways, few take the time to consider or appreciate just how large the vehicles are.

Keep reading to find out more information about semi-truck and trailer dimensions.

How long is a semi-truck?

Combining the tractor and trailer, a standard semi-truck's length is about 70 feet long.

The length can vary considerably, though, based on a variety of factors.

1. Type of tractor.

• Day cabs are typically 20 feet long, though each manufacturer and spec can alter that.
• Sleeper cabs, which have a bed inside for drivers who haul over-the-road, are also around 20 feet in length.
  

2. Type of trailer.

• A standard dry van trailer is 53 feet long. It overlaps a few feet over top of the tractor, making the unit about 70 feet.
• Pup trailers are typically 28 feet in length. It is common to see two pup trailers pulled together, making for a total length of around 56 feet.
• Intermodal containers are typically 20 or 40 feet long but can also reach the standard 53 feet.
• Tanker trailers, flatbeds and a variety of other trailer types all range between 48-53 feet.
• Extendable double drops and Removable Goosenecks (RGN) are some of the longest trailers available. Both reach 80 feet long when fully extended and typically carry other vehicles and large equipment.

3. State requirements.

Companies can often get creative with the length of their equipment for specialty freight needs, but each state has different regulations for overall length.

While Texas and Oklahoma allow trailers to be 59 feet long, most states cap trailer length at 53 feet.

How tall is a semi-truck?

A standard semi-truck's height is about 13 ½ feet tall.

The height of a semi-truck depends on various factors.

1. Type of tractor.

• Most tractors, sleeper or day, reach 13 ½ feet tall when including the height of the wind fairing.
• Cabs themselves range anywhere from 6-10 feet tall depending on their make and model.

2. Type of trailer.

• Standard dry van trailers are typically 13 ½ feet tall in total, with the door height making up 9 feet of that.
• Flatbed trailers are typically only 5 feet tall, but can hold cargo around 8 ½ feet tall.
• Intermodal trailers are typically 9 ½ feet tall, as they must adhere to standards for railways as well as roads.
• Less standard trailers, like step decks and double drops, go as low as 3 ½ feet and 1 ½ feet tall, respectively.

Truck transport

Dimensions and types of semi trailers

There is a wide selection of semi-trailers available on the market, which differ in design, purpose and dimensions. Knowing these details allows you to choose the right transport solution to meet your specific requirements. In this article, we will take a look at the most popular types of semi-trailer and their technical parameters.

The dimensions of semi-trailers mentioned in the article may slightly differ from the actual dimensions, so before taking an order, it is worth asking the carrier about specific parameters.

Learn about the most popular types of semi trailers:

1. Standard semi-trailer

A standard semi-trailer is one of the most common semi-trailers on the roads. They are also called tautliners in the industry. They consist of an open platform, covered on the sides with a flexible tarpaulin, which allows easy loading and unloading of goods from the side, back and top. There are also so-called curtainsider semi-trailers, where it is possible to move the side walls and roof. It is suitable for both general cargo and pallet transport.

Standard dimensions:
Length: 13,6 m
Width: 2,45 m &#; 2,5 m
Height: 2,7 m &#; 3 m
Capacity: About 24 tons
Volume: 33-34 europallets (about 90 m³)

2. Mega semi-trailer

A mega semi-trailer is similar to a standard one, but it has an increased internal height, which is usually about 3 meters. Thanks to the lowered floor, the mega semi-trailer offers more loading space, which allows for the transport of larger goods.

Standard dimensions:
Length: 13,6 m
Width: 2,5 m
Height: 3 m
Capacity: About 24 tons
Volume: 33-34 europallets (about 100 m³)

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3. Container semi-trailer

Container semi-trailers are designed to transport sea containers of standardized sizes (most often 20 and 40 ft). They make it possible to transport containers between different modes of transport, such as vessels, trains and trucks.

Standard dimensions:
Trailer length for a 20-foot container: 7,3 m
Trailer length for a 40-foot container: 12,2 m
Width: 2,5 m
Height: Depends on the height of the container (usually 2.6 m)

4. Refrigerated semi-trailer

Refrigerated semi-trailers are specialized semi-trailers equipped with cooling systems that keep a constant temperature inside the trailer, which is crucial for transporting temperature-sensitive goods such as food, medicines, or chemicals.

Standard dimensions:
Length: 13,3 m &#; 13,6 m
Width: 2,45 m &#; 2,5 m
Height: 2,6 m &#; 2,7 m
Capacity: About 24 tons
Volume: 33-34 europallets

Refrigerated semi-trailers are mainly used in the transport of food products such as meat, dairy products, fruit and vegetables, as well as medicines that require a controlled temperature.

5. Tipper semi-trailers

Tipper semi-trailers are designed for transporting bulk materials such as sand, gravel, soil or grain. Thanks to the tipping mechanism, they enable quick unloading by tilting the semi-trailer.

Standard dimensions:
Length: 8 m &#; 12 m
Width: 2,45 m &#; 2,5 m
Height: Depends on the type of tipper (usually 1-2 m)
Capacity: Depends on the model (usually 24-30 tons)

6. Low loader semi-trailer

Low loader semi-trailer has a lowered loading platform, which allows for the transport of large and heavy loads, such as construction machinery, vehicles or structural elements.

Standard dimensions:
Length: 8 m &#; 12 m (with the possibility of extension)
Width: 2,5 m &#; 3 m
Height: 0,4 m &#; 0,9 m
Capacity: Up to 60 tons (depending on the design)

7. Tanker semi-trailer

Tanker semi-trailers are designed for transporting liquids, gases and bulk materials in a liquid form, such as fuels, chemicals, milk or other food products in liquid form. They are made of corrosion-resistant materials and are intended for the safe transport of hazardous substances.

Standard dimensions:
Length: 10 m &#; 13,6 m
Width: 2,5 m
Volume: 30 000 &#; 45 000 liters
Capacity: Depending on the material being transported (typically up to 27 tonnes)

8. Platform semi-trailer

Platform semi-trailers, also known as open semi-trailers, have an open loading space, without side walls and roof. This kind of semi-trailers are designed to transport loads of non-standard dimensions, such as steel beams, pipes or industrial machinery.

Standard dimensions:
Length: 12 m &#; 13,6 m
Width: 2,5 m
Capacity: About 24-30 tons

Choosing the right semi-trailer is a key part of road transport planning. Knowledge of standard dimensions and capabilities of semi-trailers allows for better adaptation of means of transport to the transported loads, which translates into the efficiency and safety of logistics operations.

Types of semi trailers in Goodloading

Goodloading is an application which helps you to plan loading in various modes of transport, including road transport. Goodloading offers different types of semi-trailers such as solo, mega, standard or double trailer. The user can also add the dimensions of any space they want to plan loading.

For each vehicle, you can add:

• double trailer;
• axle loads;
• wheel arches;
• cooling unit;
• variofloor.

Sign up and check out Goodloading for free: https://app.goodloading.com/en/auth/register.

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