Whether you are hauling tools, transporting a show car, or taking your favorite toys on the road, the right enclosed trailer can make all the difference. A good trailer protects your cargo from weather, prying eyes, and road debris while giving you flexibility, security, and peace of mind. With so many sizes, styles, and features available, however, choosing the right model can feel a bit overwhelming.
This guide walks you through the major types of enclosed trailers, the key sizing and weight considerations, essential safety components, and the many ways you can personalize your trailer so it fits your lifestyle or business perfectly.
The Many Faces of Enclosed Trailers: Knowing Your Options
Not all enclosed trailers are built for the same job. Understanding the main categories will help you quickly narrow your choices.
Cargo Trailers: Versatile Workhorses for Everyday Hauling
Enclosed cargo trailers are the most common style on the road. They are designed to move equipment, supplies, furniture, and almost anything else that can be safely loaded inside. Their big advantage over open trailers is simple: protection. Your cargo stays safe from rain, snow, dust, and sun, and it is also less visible and more secure.
Most cargo trailers feature:
- A solid rear door, often a ramp or barn door style
- One or more side entry doors
- A fully enclosed box that can be basic or highly customized
Inside, many owners add racks, shelving, workbenches, or storage cabinets. This allows you to turn the trailer into a mobile workshop, tool room, or organized gear hauler. Manufacturers often build cargo trailers on strong steel or aluminum frames and may include insulated or vented walls to help control temperature. That is especially useful if you are transporting items that are sensitive to heat or cold.
From contractors carrying tools to families hauling camping gear, cargo trailers offer tremendous flexibility when you choose the right configuration and layout.
Car Haulers: Safely Moving Your Pride and Joy
If your main goal is to move vehicles, an enclosed car hauler is one of the safest and most convenient ways to do it. These trailers are specifically designed with cars in mind, and they come with thoughtful features that make loading, transporting, and unloading easier and safer.
Common features include:
- Ramps for smooth loading and unloading
- Adjustable tie down points and D rings
- Wheel chocks and built in anchor systems
- Interior lighting and storage for tools and spare parts
Car haulers are typically wider and sit lower than standard cargo trailers, allowing enough clearance for sports cars, classics, or race vehicles. Some models are designed for a single car, while others can accommodate two or more vehicles.
When choosing a car hauler, pay close attention to:
- Gross Vehicle Weight Rating (GVWR)
- Axle setup and number of axles
- Brake system type
- Interior height and door opening size
Matching these specifications with the vehicle you plan to transport ensures a safer, smoother towing experience.
Custom Builds: Turning a Trailer into Your Vision
Sometimes a standard layout just will not do. That is where custom enclosed trailers come in. If you need a mobile workshop, race support trailer, concession unit, mobile office, or barbecue rig, a custom build lets you design nearly every detail from the ground up.
You might add:
- Built in tool storage and workbenches
- HVAC systems for climate control
- Plumbing, sinks, and water tanks
- Extra doors, windows, and vents
- Specialized electrical systems and generator mounts
Before starting a custom project, take time to clearly list your needs:
- What will you carry?
- How will you use the trailer day to day?
- What utilities do you need (power, water, heating, cooling)?
Working with an experienced manufacturer is crucial. They can help you meet safety standards, avoid design mistakes, and make sure the trailer remains practical to tow and maintain. The end result is a one-of-a-kind trailer that functions exactly how you want and represents your style or brand on the road.
Choosing the Right Size: Finding Your Best Fit
Size is one of the most important decisions when selecting an enclosed trailer. Too small and you will quickly outgrow it. Too large and towing becomes more difficult than necessary.
Common Sizes: From 6×12 to 7×14 and Beyond
Two popular sizes for general use are:
- 6 x 12 – A great option for lighter loads, small equipment, or personal projects. Easy to tow for many midsize SUVs and trucks.
- 7 x 14 – Offers more floor space and height, making it ideal for motorcycles, ATVs, larger tools, or small business use.
Beyond these, trailers are available in many lengths and heights. Some owners prefer extra interior height for standing room or for taller equipment. Others prioritize a compact footprint that is easier to park and maneuver in tight spaces.
To decide what size you need, consider:
- The largest items you plan to haul
- How many pieces of equipment or vehicles you typically transport
- Whether your needs may grow in the near future
It is often wise to choose a size that gives you a bit of extra room rather than barely enough space. That cushion can save you from having to upgrade sooner than planned.
Weight Matters: Matching Trailer and Tow Vehicle
Along with size, weight capacity is critical. Not every vehicle can safely tow the same load, and exceeding limits can damage your vehicle and compromise safety.
Key terms to know:
- GVWR (Gross Vehicle Weight Rating) – The maximum total weight of the trailer plus its cargo.
- Curb weight – The empty weight of the trailer itself.
- Payload capacity – The amount of cargo weight the trailer can safely carry (GVWR minus curb weight).
Check your tow vehicle’s owner manual for its towing capacity and tongue weight rating. Then estimate:
- The empty weight of the trailer
- The weight of your typical load
For example, a fully loaded 7 x 14 trailer might weigh anywhere from 3,000 to 5,000 pounds or more, depending on construction and cargo. Your tow vehicle must be capable of handling this safely.
Also consider:
- Upgraded brakes on the tow vehicle
- Heavy duty suspension if needed
- The appropriate hitch class and hitch receiver
- A properly rated ball mount and hitch ball
Doing this homework up front helps ensure safe, stable towing and protects your investment in both trailer and tow vehicle.
What Will You Haul? Matching Layout to Purpose
The right enclosed trailer layout depends heavily on how you plan to use it. A contractor, a motorcycle enthusiast, and a catering company will have very different needs.
Some examples:
- Construction or trades – Reinforced floors, shelves, secure tool storage, ladder racks, and multiple access points can be very helpful.
- Recreation and powersports – Fold down ramps, e track systems, adjustable tie downs, and space for gear and fuel containers are key.
- Moving or delivery – Clear floor space, tie downs, and easy loading access are usually most important.
Think about how you will load and unload your cargo, where equipment will be stored, and how often you need access to certain items. Designing your interior layout around those routines makes day-to-day use far more efficient and enjoyable.
Performance and Safety: Getting Your Trailer Road Ready
Even the best trailer can become a liability if it is not set up correctly. Safe towing depends on proper loading, reliable brakes, and good tires.
Weight Distribution: Keeping Things Balanced
Proper weight distribution is one of the most important elements of safe towing. A poorly loaded trailer can sway, fishtail, or push your tow vehicle around.
Some general guidelines:
- Place about 60 percent of the total cargo weight in the front half of the trailer.
- Keep heavy items low to the floor and centered over the axle line.
- Avoid piling too much weight at the very back, which can cause sway.
- Secure all cargo firmly so it cannot shift while in motion.
A weight distribution hitch can further improve stability, especially for heavier trailers. It helps spread the load more evenly across the tow vehicle and trailer axles, improving steering and braking control.
Always check tire pressures on both trailer and tow vehicle before trips, and inspect straps or tie downs regularly for wear.
Braking Systems: Electric vs Surge
Most enclosed trailers that carry significant weight should have their own braking system. The two most common types are electric and surge brakes.
Electric brakes
- Controlled through a brake controller installed in the tow vehicle
- Allow you to adjust braking strength based on load and conditions
- Provide quick, responsive stopping power
Surge brakes
- Operate mechanically using the forward motion of the trailer pushing on the hitch
- Do not require a brake controller or electrical connection to the tow vehicle
- Are simple to use but can require more maintenance, especially around the hydraulic components
Your choice will depend on how often you tow, what you haul, and whether you are willing to install a controller in your vehicle. For frequent towing or heavier loads, many drivers prefer the control and responsiveness of electric brakes.
Tire Selection: Why the Right Tires Matter
Trailer tires do a different job than passenger vehicle tires. They are built to carry heavy loads and spend long stretches of time rolling in a straight line.
When choosing trailer tires, consider:
- Type – Trailer specific tires (often labeled ST) have stiffer sidewalls to handle heavy loads without excessive flex.
- Load rating – The tire’s maximum weight capacity must match or exceed the trailer’s needs.
- Construction – Radial tires tend to run cooler and last longer, making them a great choice for highway use. Bias ply tires can be suitable for low mileage or rough terrain situations.
Regular maintenance is essential. Check pressure, look for cracks or uneven wear, and replace tires before they reach the end of their safe life. Proper tires reduce the risk of blowouts and improve handling, fuel economy, and overall safety.
Personalizing Your Trailer: Making It Truly Yours
One of the biggest advantages of an enclosed trailer is the blank canvas it provides. With a few upgrades and creative choices, you can transform it into a space that feels custom made for you.
Interior Upgrades: Function Meets Comfort
Inside, consider how you want the space to function.
Possible modifications include:
- Wall mounted shelving and cabinets for organized storage
- Pegboards or tool racks for easy access
- Fold down workbenches or tables
- Insulation and finished walls for better temperature control
- LED lighting for working at night or in low light
- Non slip, easy to clean flooring such as rubber mats or coated plywood
These upgrades can turn a simple box trailer into a professional workspace, mobile showroom, or efficient gear hauler, all while making your time in and around the trailer more pleasant and productive.
Exterior Customization: Style, Branding, and Protection
The outside of your trailer is an opportunity to express your personality or promote your business.
You might add:
- Custom paint or color schemes
- Vinyl wraps and graphics
- Company logos and contact information
- Reflective striping for better night visibility
For business owners, your trailer can act as a mobile billboard, advertising your services everywhere you travel and park.
Protective coatings are worth considering as well. They can help shield the exterior from road salt, UV rays, and weather, keeping the trailer looking new longer.
Essential Accessories: Small Additions, Big Benefits
Finally, a few well chosen accessories can dramatically improve everyday use.
Some must have add ons include:
- High quality tie down straps and e track systems
- Wheel chocks for safe loading and unloading
- Ramps suited to your cargo and trailer height
- Roof vents or side vents to improve air flow
- Interior and exterior lighting
- Spare tire and jack kit
These items might seem minor, but they can prevent damage, increase safety, and make your trailer more convenient to use in real world situations.
Bringing It All Together
Choosing the right enclosed trailer is about more than picking a size or style at random. It requires a realistic look at what you haul, how often you travel, what you tow with, and how you like to work. When you understand the different trailer types, consider size and weight carefully, pay attention to safety components, and think about how you want to customize your space, you are far more likely to end up with a trailer that serves you well for years.
With the knowledge from this guide, you are ready to compare options confidently and invest in an enclosed trailer that is not only practical, but also perfectly suited to your needs.
