Trailer Dimensions
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Trailer Types & Dimensions
Our trailer dimension tool is designed to assist you in efficiently planning and executing your logistics for large projects. With this user-friendly tool, you can easily access essential trailer dimensions and make informed decisions for your cargo requirements
At Aries, we specialize in expert logistics transport services, ensuring your valuable cargo is handled with utmost care and delivered on time. Contact us today to leverage our expertise and experience seamless logistics for your large-scale projects.
Variations in length and height are common, but width is more standardized. The standard dimensions of semi-trailers are:
Length: 48 – 53 ft Width: 8.5 ft Height: 13.5 ft
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Flatbed Trailer
Flatbed semi trailers are designed to transport products which are long, heavy or oddly proportioned which creates a challenge when loading/unloading an enclosed trailer. The open nature of the trailer allows for loading / unloading from the rear, sides or top; allowing forklifts and cranes to create an even lift on the freight. Flatbeds are best suited being loaded / unloaded from the ground, rather than from a dock.
Semi Trailer Dimensions
| Length | 48′ – 53′ |
| Width | 102″ |
| Height | 60″ |
Typical Cargo Maximums
| Cargo Width | 102″ |
| Cargo Height | 102″ – 108″ |
| Cargo Weight | 48,000 lbs |
| Pallet Count | 24 |
Step Deck Trailer
Step deck semi trailers, also known as drop decks, are designed to transport products which are too tall for a standard flatbed. The trailer consists of two decks, the upper and lower. The use of the lower deck, or well, allows for freight up to 10’ high to be legally transported, while still providing the same loading / unloading capabilities of a standard flatbed.
Trailer Dimensions
| Length: Total | 48′ – 53′ |
| Length: Lower Deck | 37′ – 43′ |
| Length: Upper Deck | 10′ – 11′ |
| Width | 102″ |
| Height: Lower Deck | 36 – 42″ |
| Height: Upper Deck | 60″ |
Typical Cargo Maximums
| Cargo Width | 102″ |
| Cargo Height | 120″ – 126″ |
| Cargo Weight | 45,000 lbs |
| Pallet Count | 24 |
Double Drop Trailer (Lowboy)
Double drop semi trailers are designed to transport oversize freight, both legally and through the use of permits / escorts. Comprising of three decks: the upper, lower, and well. The low profile nature of the well allows for freight up to 12’ high to be legally transported. With multiple trailer variations, such as an extendible deck, double drops allow for the transport of a wide array of oversized freight.
Trailer Dimensions
| Length: Total | 48′ |
| Length: Main Well | 26′ – 30′ |
| Length: Front/Rear Decks | 8′ – 10′ |
| Width | 102″ |
| Height | 18″ – 24″ |
Typical Cargo Maximums
| Cargo Width | 102″ |
| Cargo Height | 144″ – 150″ |
| Cargo Weight | 40,000 lbs |
Extendable Double Drop Trailer (Lowboy)
Extendable Double Drop trailers are designed to transport both legal and oversized (permitted, escorted) freight, and are specifically useful for commodities which are too long for the ‘Well’ of a standard Double Drop trailer. Extendable Double Drop’s have the ability to extend out their ‘Well’ via two (2) bars, which allows longer commodities to be fully supported, length wise. Double Drops allow for the transport of a wide array of oversized freight which can be loaded and offloaded via a crane.
Trailer Dimensions
| Length: Total | Approx 80′ (fully extended) |
| Length: Main Well | 31′ – 60′ |
| Length: Front/Rear Decks | 8′ – 10′ |
| Width | 102″ |
| Height | 18″ – 24″ |
Typical Cargo Maximums
| Cargo Length | 60′ |
| Cargo Width | 102″ |
| Cargo Height | 144″ – 150″ |
| Cargo Weight | 40,000 lbs |
RGN Trailer
RGN (removable gooseneck, also called low boy or double drop) semi trailers are designed to transport oversize freight, both legally and through the use of permits / escorts. RGNs are specifically useful for products which can be driven onto the trailer, such as tractors, specialty vehicles, and heavy machinery. With the ability to detach from the cab, and with drop down ramps, freight can easily be driven on and off.
Trailer Dimensions
| Length: Total | 48′ |
| Length: Main Well | 26′ – 30′ |
| Length: Rear Deck | 8′ – 10′ |
| Width | 102″ |
| Height | 18″ – 24″ |
Typical Cargo Maximums
| Cargo Width | 102″ |
| Cargo Height | 144″ – 150″ |
| Cargo Weight | 40,000 lbs |
Extendable RGN Trailer
Extendable RGN (Removable Gooseneck) trailers are designed to transport both legal and oversized (permitted, escorted) freight, and are specifically useful for commodities which are too long for the ‘Well’ of a standard RGN trailer. Extendable RGNs have the ability to extend out their ‘Well’ via two (2) bars, which allows longer commodities to be fully supported, length wise. In addition, with the ability to detach from the cab, coupled with drop down ramps, freight can easily be driven on and off, such as heavy machinery, or loaded and offload via a crane such as modular buildings.
Semi Trailer Dimensions
| Length: Total | Approx 80′ (fully extended) |
| Length: Main Well | 31′ – 60′ |
| Length: Rear Deck | 8′ – 10′ |
| Width | 102″ |
| Height | 18″ – 24″ |
Typical Cargo Maximums
| Cargo Length | 60′ |
| Cargo Width | 102″ |
| Cargo Height | 144″ – 150″ |
| Cargo Weight | 40,000 lbs |
Hot Shot Trailer
Hot shot semi trailers are to transport products which are long or oddly proportioned. However, they are limited to lower cargo weight. The open nature of the trailer allows for loading / unloading from the rear, sides or top; allowing forklifts and cranes to create an even lift on the freight. The low profile nature of the deck allows for freight up to 10’ high to be legally transported.
Trailer Dimensions
| Length | 40′ |
| Width | 102″ |
| Height | 36″ – 42″ |
Typical Cargo Maximums
| Cargo Width | 102″ |
| Cargo Height | 120″ – 131″ |
| Cargo Weight | 15,000 lbs |
Dry Van Trailer
Dry van semi trailers are designed to transport the most versatile of dry products due to the fully enclosed nature of the trailer, which allows freight to be protected from the elements. Palletized products are most common as they can be efficiently and safely loaded / unloaded with a forklift or pallet jack from a dock.
Trailer Dimensions
| Length | 48′ – 53′ |
| Width | 102″ |
| Door Height | 110″ |
| Total Height | 13’6″ |
Typical Cargo Maximums
| Cargo Width | 98″ – 101″ |
| Cargo Height | 108″ – 110″ |
| Cargo Weight | 45,000 lbs |
| Pallet Count | 24 – 26 |
Reefer Trailer
Reefer semi trailers are designed to transport products which require to be kept at a specific temperature or temperature range through the entirety of the transit. While reefers are traditionally utilized to keep freight cold, reefers have the ability to be kept at warmer temperatures to protect freight from freezing, or run dry freight with the refrigeration unit turned off.
Trailer Dimensions
| Length | 48′ – 53′ |
| Width | 102″ |
| Door Height | 110″ |
| Height | 13’6″ |
Typical Cargo Maximums
| Cargo Width | 96″ – 98″ |
| Cargo Height | 103.5″ |
| Cargo Weight | 44,000 lbs |
| Pallet Count | 24 |
Conestoga Trailer
Conestoga semi trailers are designed to offer the enclosed nature of a dry van, while providing the same loading / unloading capabilities of a flatbed. A sliding curtain, when open, allows for freight to be loaded / unloaded from the side, rear, or top. When closed, the curtain offers the weather protection of a dry van without the risk of tarps rubbing against the freight.
Trailer Dimensions
| Length | 48′ – 53′ |
| Width | 102″ |
| Door Height | 98″ – 102″ |
| Total Height | 13’ 6″ |
Typical Cargo Maximums
| Cargo Width | 102″ |
| Cargo Height | 98″ – 102″ |
| Cargo Weight | 45,000 – 48,000 lbs |
| Pallet Count | 24 – 26 |
Intermodal Trailer
Intermodal semi trailers are designed to transport palletized shipments which require a fully enclosed trailer. Intermodal containers are specifically useful for products with no time sensitivity in order to capture the cost savings of rail transit. These cost savings are the most substantial when shipping in/out of major market lanes over 1,500 miles.
Trailer Dimensions
| Length | 53′ |
| Width | 102″ |
| Door Height | 109″ |
| Total Height | 114″ |
Typical Cargo Maximums
| Cargo Width | 98″ |
| Cargo Height | 109.5″ |
| Cargo Weight | 42,500 – 43,000 lbs |
| Pallet Count | 26 |
Pup Trailer
Pup semi trailers are designed to pick up and deliver local palletized freight. The reduced length of pup trailers allows for easy maneuverability in/out of non-commercial areas not suited for larger trailers. Pup trailers are the most common type of equipment with a lift gate affixed to allow unloading / loading at locations with no dock or proper freight handling equipment.
Trailer Dimensions
| Length | 28′ |
| Width | 102″ |
| Door Height | 104″ |
| Total Height | 13’6″ |
Typical Cargo Maximums
| Cargo Width | 98″ – 100″ |
| Cargo Height | 95″ |
| Cargo Weight | 22,000 lbs |
| Pallet Count | 14 |
Have questions about carrying your load or freight? Our expert logistics team will gladly help with a free 15 minute consultation.
Aries FAQs
For questions or inquiries regarding state permits in carrying your load or freight contact us and our expert oversized and permit logistics team will gladly help.
Because every project is unique and the needs can vary, contact us or defer to our trailer dimensions tool page.
