Trailer Types in Trucking

A Complete Guide to Common Freight Trailers

Whether you're shipping standard palletized freight or oversize industrial equipment, choosing the right trailer type is critical. Each trailer serves a unique role in the supply chain and comes with specific dimensions, weight limits, and load configurations. In this guide, we break down the most common trailer types in the trucking industry, including dry vans, reefers, flatbeds, cargo vans, straight trucks, Conestoga trailers, and specialized trailers like RGNs and lowboys.

Types of Trailers in Trucking

53 ft Dry Van Trailer – Common Truck Trailer


53 or 48 ft Dry Van (53x102x110) High Cubed Trailer 

Specs:

  • Interior Dimensions: 53’L x 102” W x 110”H
  • Max Weight Capacity: Up to 45,000 lbs.
  • Pallets: 26 (single stacked), 52 (double stacked) – standard-sized pallet dimensions (48 x 40 x 48)
  • Common Features: Wood or metal floors, E-tracks (logistics posts), roll or swing doors, food-grade interiors, air-ride. 

Best For: General freight, boxed goods, consumer products, food & beverage (non-refrigerated), dry goods, dry pallets. 
 

Reefer Trailer – Temperature Controlled Truck Trailer


Reefer Trailer (Temperature-Controlled)

Specs:

  • Interior Dimensions: 53’L x 100” W x 103”H (Chutes reduce usable height)
  • Max Weight Capacity: 43,500 – 44,000 lbs.
  • Insulated walls with refrigeration or freezing units
  • Features: Chute systems, E-tracks, roll or swing doors, vented flooring

Best For: Perishables, frozen food, pharmaceuticals, and temperature-sensitive freight

Straight Truck / Box Truck


Straight Truck (Box Truck)

Specs:

  • Length Range: 22' – 26'
  • Max Weight Capacity: ~10,000 – 12,000 lbs.
  • Pallets: Up to 12
  • Loading: Rear liftgate or dock-high

Best For: Regional LTL freight, retail delivery, light pallet loads, urban routes, and liftgate/pallet jack requirements for loading/unloading. 
 

Cargo Van


Cargo Van/Sprinter Van

Specs:

  • Length Range: 10' – 14' cargo area
  • Max Payload: 3,000 – 5,000 lbs.
  • Pallets: 1 – 3
  • Loading: Rear door (no dock height)

Best For: Expedited shipments, small parcels, last-mile delivery, and just-in-time freight

Flatbed Trailer – Versatile Truck Trailer (48 & 53 ft)


Standard Flatbeds 48 or 53

Specs:

  • Length: 48' or 53'
  • Width: 102"
  • Max Weight Capacity: Up to 48,000 lbs.
  • Height Limit: ~8'6" (without trailer walls or roof)

Best For: Machinery, construction materials, pipes, crated freight — easy side or crane loading. Commonly requested with tarps, straps, or chains to secure freight.
 

Step Deck Trailer – Truck Trailer Type for Taller Freight


Step Decks – 48 or 53 use cargo that has height restrictions 

Specs:

  • Upper Deck Height: 5'
  • Lower Deck Height: 3'6"
  • Max Freight Height: Up to 10'2"
  • Max Weight: ~48,000 lbs.

Best For: Taller freight that exceeds standard flatbed height clearance; equipment, tanks, lumber. Commonly requested with tarps, straps, or chains to secure freight.

Conestoga Trailer – Covered Flatbed Truck Trailer


Conestoga 48 or 53

Specs:

  • Length: 48' or 53'
  • Width: 102"
  • Max Weight Capacity: Up to 45,000 lbs.
  • Features: Sliding tarp system (no manual tarping

Best For: Freight that needs flatbed loading with protection from weather — e.g., coils, machinery, crated items.

Hot Shot Flatbed – Small Truck Trailer for Expedited Freight


Hot Shot Flatbed Trailer

Specs:

  • Length: 30' – 40'
  • Max Weight Capacity: 16,000 – 20,000 lbs. (varies by truck class)
  • Pulled By: Class 3 – 6 pickup trucks
  • Deck Height: Lower profile, similar to step decks

Best For: Expedited freight, smaller equipment, time-sensitive loads, and remote areas

RGN Trailer – Heavy Haul Truck Trailer


RGN Trailer

Specs:

  • Length: Up to 29' well + deck extensions
  • Max Freight Height: 11'6" or more
  • Max Weight: 40,000–80,000+ lbs. (with axle additions)
  • Load Type: Front-loadable (gooseneck detaches)

Best For: Oversized, heavy equipment, project cargo, and construction machinery.
 

Double Drop Trailer – Low Deck Truck Trailer for Oversized Freight


Double Drop Trailer

Specs:

  • Well Length: ~25' – 29'
  • Deck Height: As low as 18"
  • Max Freight Height: 11'6" or more
  • Weight Capacity: 40,000 – 80,000+ lbs. with axles

Best For: Extreme height freight, cranes, dozers, turbines, and industrial freight.

Lowboy Trailer – Heavy Equipment Truck Trailer


Lowboy Trailer

Specs:

  • Well Length: ~24' – 29'
  • Deck Height: Typically, 18" – 24"
  • Max Freight Height: 11'6" or more (depending on deck height)
  • Weight Capacity: 40,000 – 80,000+ lbs. (can go higher with additional axles or specialty permits)

Best For: Bulky, tall, and heavy freight, like: Excavators, cranes, industrial equipment, transformers, and large tanks or vessel.
 

Extendable Drop Deck – Truck Trailer Type for Long Loads


Extendable Drop Deck

Specs:

  • Base Length: 48' – 53'
  • Extended Length: Up to 80’+
  • Deck Height: Similar to step deck
  • Max Weight: ~38,000 – 45,000 lbs.


Best For: Long loads like beams, pipes, wind blades — where standard trailer lengths fall short.

FAQ: Trailer Types in Trucking

The dry van trailer is the most widely used, ideal for general freight and available in 48' or 53' lengths.

A step deck trailer has a lower deck height than a flatbed, allowing it to carry taller cargo that exceeds the height limits of standard flatbeds.

Use a Conestoga trailer when you need the loading flexibility of a flatbed but also want protection from the weather. A Conestoga trailer is ideal for sensitive or high-value freight.

RGN, double drop, and lowboy trailers are designed for oversize or heavy haul freight — such as construction machinery or project cargo.

Yes, loads exceeding standard legal limits (height over 13'6", width over 8'6", or weight over 80,000 lbs. gross) require special state or federal permits.

Yes, reefer trailers can carry pallets just like dry vans, but include temperature control for perishables and pharmaceuticals.