Types of Trailers for Trucks: Exploring Flatbed, Lowboy, Dry Van, and More Options

When you’re looking at the world of trucking, knowing your trailer options can make a big difference in how you move cargo. 

Understanding the different types of truck trailers – like flatbeds, lowboys, and dry vans – helps you choose the right fit for your hauling needs. The right trailer can save you both time and money, while also keeping your loads secure.

Whether you’re hauling massive equipment, temperature-sensitive freight, or something in between, there’s a trailer made for your job. 

You might be surprised at how many specialized and advanced trailer designs are out there beyond just the basics.

Key Takeaways

• There are several core types of truck trailers, each suited for different loads.
• Specialized trailer designs handle unique hauling challenges.
• Knowing your trailer options helps you make better shipping choices.

Core Types of Trailers for Trucks

Trailering choices shape how freight moves across roadways. Each trailer type handles cargo loads with different design features, protection, and specialties, offering options for nearly any shipping need.

Flatbed Trailers

Flatbed trailers are completely open, making loading and unloading straightforward. 

You’re not restricted by walls or a roof, so these trailers suit large items, odd shapes, or anything that needs to be lifted by crane or forklift from the side or above.

Typical uses include shipping steel beams, lumber, construction equipment, and oversized items. 

Flatbeds usually measure 48 to 53 feet long, allowing for flexible cargo dimensions. You’ll need tarps and proper tie-downs to secure freight and protect it from the weather.

Regulations require cargo to be fastened with appropriate straps or chains. The versatility of a flatbed trailer is why it’s common in the trucking industry when specialized equipment isn’t required.

Dry Van Trailers

A dry van trailer is an enclosed trailer designed to shield freight from the elements. This is the most common type of truck trailer you’ll encounter on highways, usually 48 or 53 feet in length and capable of holding up to 45,000 pounds, depending on model and road restrictions.

Dry vans are ideal for moving palletized, boxed, or loose goods such as consumer products, electronics, and clothes. 

Since they provide a barrier against rain, dust, and wind, you don’t have to worry about weather damage with dry van shipping.

These trailers load and unload from the rear, so loading docks with level access work best. 

Keep in mind that dry van trailers don’t offer temperature control or the ability to haul oversized freight.

Lowboy Trailers

Lowboy trailers, also known as low-bed trailers or double-drop trailers, have a deck that sits lower than most other trailers. 

This lets you haul extremely tall or heavy cargo that would exceed height limits on a standard flatbed trailer.

They’re a popular choice for transporting heavy machinery, oversized construction equipment, and industrial components. The lower deck height  –  often 18 to 24 inches from the ground  –  allows for extra clearance under bridges and overpasses.

Lowboy trailers offer impressive weight capacities, sometimes over 80,000 pounds, with the right permits. 

They often come with removable goosenecks and ramps for easier loading of self-powered equipment.

Refrigerated Trailers

Refrigerated trailers, often called reefers, are essential for moving cargo that needs to stay cold or frozen. 

These trailer types come with insulated walls and an onboard refrigeration unit, keeping internal temperatures controlled regardless of outside weather.

Commonly transported goods include perishable foods, pharmaceuticals, and temperature-sensitive chemicals. 

Temperature ranges can be adjusted, with some reefers holding sub-zero Fahrenheit temps while others keep cargo just above freezing.

You’ll see reefers in most grocery supply chains, food distributors, and even medical shipments. 

These trailers are slightly heavier due to insulation and cooling machinery, which may slightly reduce usable cargo space and capacity compared to standard dry vans.

Specialized and Versatile Trailer Designs

When you have niche freight or oversized cargo, choosing the right specialty trailer matters. 

Each trailer type has features designed to solve specific challenges in loading, hauling, or protecting your goods.

Step Deck and Drop Deck Trailers

Step deck trailers (also called drop deck trailers) give you a lower deck height behind the tractor, letting you haul taller loads than standard flatbeds. 

The “step” design means you avoid clearance issues under bridges and overpasses. The main deck typically sits 38 to 42 inches from the ground, compared with about 60 inches for flatbeds.

You’ll spot two levels: the upper deck (towards the cab) and a longer, lower main deck. 

Double drop trailers go even lower with a “well” between front and rear axles, perfect for extremely tall equipment. 

These designs help you stay within legal height limits for highway transport without needing oversize permits. If you move construction machinery, heavy equipment, or tanks, these trailers are a solid pick.

Key specs:

• Main deck height: ~38-42″
• Upper deck: ~60-65″
• Legal load heights: up to 10′ (step deck), up to 12′-14′ (double drop)

Removable Gooseneck and RGN Trailers

Removable gooseneck (RGN) trailers are built for ultra-heavy or oversized loads like excavators, large tractors, and industrial machinery. 

The front gooseneck detaches, dropping the main trailer deck to ground level. This lets you “drive” wheeled or tracked vehicles right onto the trailer without a loading dock or ramps.

RGN trailers can support loads weighing anywhere from 40,000 to 80,000 lbs or more. The lower deck height means you can haul taller freight and stay compliant with height regulations. 

With multi-axle options, you can spread the weight for heavier loads, making them a staple in heavy haul freight transport.

Quick RGN features:

• Detachable gooseneck
• “Drive-on” loading
• Deck height: 18-24”
• Load capacity: up to 150,000 lbs+ (with additional axles)

Conestoga and Curtainside Trailers

Conestoga trailers use a sliding tarp system similar to a curtain, but the frame prevents the tarp from touching your cargo. 

If you have sensitive equipment, steel coils, or machinery that can’t get wet or scratched, this design keeps it covered and secure. The sides and roof slide open for fast, easy access with forklifts or cranes.

Curtainside trailers have a flexible curtain-like side end-to-end, which you can pull back for side loading. 

They offer a balance: almost as weather-protective as dry vans, but with the accessibility of a flatbed. 

This design is a favorite for shipping containers, palletized freight, and non-standard sizes.

Tanker Trailers

Tanker trailers are specialty designs for moving liquids, bulk powders, and chemicals. You’ll see them hauling fuel, food-grade liquids, cement, and industrial chemicals. 

Tanks can be made from stainless steel, aluminum, or sometimes carbon steel, depending on the material being carried.

Tanker trailers come in several shapes, but cylindrical designs are the most stable for liquid transport. 

Special baffles reduce the movement of liquids during transit, which helps with stability and safety. Capacity varies, but most hold between 5,000 and 11,000 gallons.

Key facts:

• Used for liquids (fuel, milk, chemicals) or powders (cement)
• Cylindrical for safety
• Often require special driver certifications for hazardous materials

Hauling Solutions for Unique Cargo

Not every load fits neatly onto a standard trailer. Some jobs call for equipment that’s designed with very specific needs in mind, whether you’re moving vehicles, livestock, building materials, or waste.

Car Haulers and Livestock Trailers

Car haulers are built to transport vehicles safely and efficiently. You’ll find both open and enclosed options, with open haulers often used for deliveries to dealerships, auctions, or between locations. 

These trailers feature ramps, wheel straps, and sometimes hydraulic lifts for easy loading.

Livestock trailers are essential for moving animals across the United States. They offer features such as slotted sides for ventilation, non-slip floors, and robust gates to keep everything secure. 

Many models include adjustable compartments, allowing for different types of animals and group sizes.

Both trailer types focus on protection and easy access. Safety features like lighting, strong hitches, and durable flooring are non-negotiable. You’ll want to regularly check your equipment to meet both logistics needs and animal welfare standards.

Hotshot Trailers

Hotshot trailers serve small trucking businesses and independent operators who need flexible, quick-response logistics. 

These medium-duty trailers often hook up to pickup trucks or beefed-up chassis, rather than full semi-trucks.

They’re popular for expedited freight – especially when you need to haul loads that aren’t large enough for a full-sized semi-truck trailer. 

Typical hotshot cargo includes construction equipment, machinery, and sometimes even vehicles.

Common trailer types used for hotshot loads are gooseneck trailers, bumper pull flatbeds, and dovetail trailers. Payload capacities usually range between 10,000–26,000 pounds, making these trailers versatile for many industries. 

Regulations in the United States can vary, so weight limits and CDL requirements are something you should always double-check.

Utility and Box Trailers

Utility trailers are a go-to for smaller, diverse loads. These open trailers have flatbeds with low or no sides and are excellent for hauling landscaping equipment, building materials, or supplies for your next home project.

Box trailers, also called enclosed trailers, add an extra layer of security and protection from the weather. 

They’re often used by movers, contractors, and small businesses. Inside, you may find tie-down rails, E-track systems, and shelving options to keep items organized and safe during transit.

Both trailer types attach easily to a variety of tow vehicles. Here’s a quick feature comparison:

Dump Trailers

Dump trailers make cleanup and material hauling much simpler. They’re equipped with hydraulic lifts that allow the bed to tilt, letting you unload gravel, dirt, trash, or demolition debris quickly. 

This is a popular choice for construction sites, landscapers, and property managers.

Different sizes fit different needs, from small 5-foot tandem axle dumps up to heavy-duty models for semi-trucks. 

You’ll often find reinforced steel beds, tarp systems to contain loose materials, and integrated ramps for loading equipment.

These trailers streamline disposal, reduce manual labor, and help you tackle big jobs without multiple trips. 

Frequent inspections of hydraulics, tires, and brakes are critical for keeping your dump trailer safe and reliable on busy job sites.

Extendable, Intermodal, and Advanced Trailer Types

Specialized trailers let you handle oversized cargo, intermodal shipments, and challenging loading environments with more flexibility and efficiency. 

Some options also integrate new technologies to protect loads and speed up your workflow.

Extendable Flatbed and Drop Deck Trailers

Extendable flatbed and drop deck trailers are key when you need to haul extra-long loads like pipes, beams, or oversized machinery. 

These trailers can stretch from their standard length using sliding or telescoping frames. This helps you carry cargo that wouldn’t fit on a fixed-length trailer.

Common lengths:

Trailer Type Collapsed Length Extended Length (typical)

• Flatbed 48–53 ft 70–80 ft
• Drop Deck 48–53 ft 63–75 ft

Having the ability to extend sections means you can adjust the trailer for different jobs, saving time and reducing the number of permits needed.

Most extendable trailers also have adjustable support beams and outriggers to offer stability for wide or high-center loads.

Intermodal and Container Chassis Trailers

Intermodal trailers and container chassis are designed to transport shipping containers between ships, trains, and trucks. 

Container chassis are essentially steel frames built to carry standard ISO containers, making them essential for port and rail yard operations.

Two big advantages:

• Quick Transfer: You can move containers directly from ship to trailer without unloading the cargo itself.
• Universal Fit: Chassis come in standard sizes to match 20-foot, 40-foot, or 53-foot containers.

This streamlines the loading process at a loading dock or with an overhead crane. 

Intermodal chassis may include twist locks and sliding axles to match container weight for legal road transport, making them versatile for international logistics.

See our guide to truck bed covers.

Final Thoughts

Semi trucks can be paired with different trailers, each designed for specific purposes and cargo needs. 

Some trailers are open for oversized items, while others provide enclosed protection or specialized features.

If you’re looking for a commercial trailer, take a look at our inventory here.

Frequently Asked Questions