Make My Trailer

Everything you need to know about the

8.5x28 Double Axle with Insulation

1. Technical Features Table

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Standard Features Quality Cargo
PRICE $9,340.00
EXTERIOR METAL .024 White metal exterior Semi-Screwless exterior
AXLES  Tandem 5200 lb Spring axles
V-NOSE  V-Nose with vertical ATP trim
ELECTRIC BRAKES  Axles w/ Electric Brakes
DOME LIGHT 12V Dome light with switch
WALLS/CEILING TUBING  1"x1" steel tube in walls and ceiling
FLOOR TUBING  6" Tube Main Frame
FLOOR CROSS-MEMBERS Floor Members 16" O.C.
ROOF CROSS-MEMBERS Roof Members 24" O.C.
WALL CROSS-MEMBERS Wall Members 16" O.C.
LIGHTS  LED Strip tail lights
INTERIOR HEIGHT 6'6" (78") Interior Height
REAR DOOR  Rear Ramp w/ Spring Assists w/Flap
PLUG / COUPLER (BALL) 7-way Round elec. Plug 2 5/16" coupler
FENDERS Aluminum fenders w/lights
TIRES 15" Tires
SIDE DOOR 32" RV style side door with flush lock
ATP V-Nose with vertical ATP trim
RIMS/WHEELS Silver Mod Wheels
ROOF MATERIAL  Galvalume roof
STONEGUARD 24" Stoneguard on front
TONGUE JACK 2000 lb tongue jack
HUBS  EZ Lube Hubs
WALL MATERIAL Premium 3/8" plywood sidewalls
FLOOR MATERIAL 3/4" plywood floor/painted underneath
VENTS Non-powered roof vent or sidewall
DRINGS 4 Floor D-rings
BEAVERTAIL Beavertail frame
EMPTY WEIGHT 4200 lbs
LOAD CAPACITY 6200 lbs
GVWR 10400 lbs
TONGUE WEIGHT 630 lbs

2. Technical FAQ

What’s the EXTERNAL trailer length, width and height on the 8.5x28?

Overall Length: 31’6″ / 378 in (Breakdown: 28′ on the Box + 3’6″ on the Tongue) 20″ on the Vnose
Overall Width: 8’6″/ 102 in (Breakdown: 8’6″ on the Box)
Overall Height ( Diamond ): 8’4″ / 100 in (Breakdown: 7′ on the Box + 16″from the ground to the box)
Overall Height (Anvil): 7’10” / 94 in (Breakdown: 6’6″ on the Box + 16″from the ground to the box)

What’s the INTERNAL trailer length, width and height on the 8.5x28?

Overall Length: 27’9″ Box (Breakdown: Subtract 3″ which counts for rear door & framing) plus 20″ on the Vnose
Overall Width: 8′ Wall to Wall (Breakdown: Subtract 3″ (each wall) which counts for framing & Plywood)
Width Between Wheel Boxes: 81 inches (Breakdown: Subtract 7.5″ (each side) which counts for wheel boxes
Overall Height ( Diamond ): 7′
Overall Height (Anvil): 6’6″

What are the Rear Door Entry Measurements on the 8.5x28?

Width: 90″ (Breakdown: Subtract 12″ (6 on each side) which counts for plywood & framing)
Height ( Diamond ): 78″ (Breakdown: Subtract 6″ which counts for plywood & framing)
Height (Anvil): 72″ (Breakdown: Subtract 6″ which counts for plywood & framing)

What electric hookup do I need for my trailer lights?

7-way Round plug

What is the bolt pattern for the wheels?

5x4.5 (5 Lug)

What is your tire ply rating?

5200 lb Axles: 8 Ply
6000 lb Axles: 10 Ply

What is semi screw less?

Screws are 4′ apart instead of being every 2′

What paint do you typically use for underneath the plywood?

It’s an asphalt undercoating paint

Do you need HELP selecting your Custom Options?

We developed a section exclusively for Custom Options where we show sample photos and explain most popular options:

Click Here for More Information.

Here are examples of some of the most popular Custom Options:

– Blackout Package
– Electrical Package
– Insulation Package
– Rubber Flooring
– Etracks
– D-rings
– Windows
– Extended Tongue
– Extra Height
– Ladder Racks
– Finished Interior (Metal/Vinyl)
– Air Conditioner
– Lighting Options
– Axle Upgrades
– Concession Window
– Special Door Options
– Cabinets
– Barn Doors

3. Sample Photos

4. Sample Video

enclosed cargo trailer video overview

5. Sample Colors (Click to enlarge)

6. Purchase FAQ

Is there Financing available?

Click the link below for Financing Options:
https://makemytrailer.com/enclosed-trailer-financing-services/

Is there Delivery available?

Click the link below for Delivery Options:
https://makemytrailer.com/delivery/

What Paperwork comes with my Trailer?

30 Day Temporary Tag, Certificate of Origin and obviously your Title so you can register your brand new trailer

Are your prices Factory Direct?

Yes they are and also the reason why your trailer pick up is directly at the Factory.

Do we Charge Taxes?

We do not charge any taxes, that’s something that you pay when you register the trailer

When can I get my VIN number?

Yes, as soon as your trailer is ready we can provide your with your VIN number.

How can I pay my Deposit?

1) Credit or Debit Card (over the phone or invoice sent to your email)
2) Mail a Cashier’s Check
3) Wire Transfer

What happens after the Deposit is paid?

Once your deposit is confirmed we’ll send you an email just make everything official and after 24 hours (timeframe we provide in case of any changes) we will send your order to our production team so they can start working on your future top notch trailer

How long does our production team takes to the build your trailer?

It depends on 2 factors: The season and your Order so make sure to ask our awesome sales team for a more accurate completion timeframe but on average you might be looking between 2 to 4 weeks on standard order and about 3 to 5 weeks for orders with custom options.

Note: We do make exceptions so make sure to ask our sales team

Do I get any updates on my order?

We don’t usually provide any updates during the building process but we can definitely ask our production team how things are going but as soon as your trailer is ready, we will send you the completion email along with the instructions so you can start your pick up arrangements

Buy Now

By clicking Buy Now, you will be redirected to our secure PayPal checkout page. A deposit is required to reserve the standard version of this trailer size. The remaining balance, including any selected options or upgrades (such as A/C or insulation), will be due at pickup or delivery. Final price may vary depending on manufacturer and features. Please contact us to confirm details before completing your order.

7. Need a Quote?

Have you recently invested in an enclosed cargo trailer, or are you looking to maximize the lifespan and efficiency of your current one? Our comprehensive PDF guide is your ultimate companion to mastering the art of trailer maintenance!

Safeguard Your Investment:

10 Smart Ways to Prevent Trailer Theft!

enclosed cargo trailer video overview
Useful Article About:

Build Your Ideal 8.5x28 Double Axle with Insulation – The Versatile Solution from Mobile Office to Specialty Hauler

In today’s dynamic world, the demand for adaptable, mobile spaces has never been greater. Businesses and individuals alike are seeking solutions that go beyond traditional brick-and-mortar limitations, requiring a platform that is robust, versatile, and ready for any challenge. The 8.5x28 double axle insulated trailer emerges as the definitive answer—a blank canvas engineered for strength, designed for possibility, and prepared to become whatever you need it to be. Whether you envision a climate-controlled mobile office, a secure workshop, or a specialized hauler for sensitive equipment, this enclosed cargo trailer provides the ideal foundation to bring your vision to life. This guide will walk you through the essential features, customization potential, and critical advantages of building your own insulated trailer, transforming it from a simple cargo hauler into a powerful asset for your personal or professional goals.

8.5x28 enclosed trailer for sale

Introduction: Unleashing the Potential of a Climate-Controlled, Versatile Trailer

Introduction: Unlock the Potential of a Climate-Controlled, Versatile Trailer

The true power of an 8.5x28 enclosed trailer lies in its adaptability. While an open deck trailer serves a basic purpose, an insulated, enclosed model unlocks a new realm of utility. By controlling the internal environment, you protect not only your cargo but also create a functional space for work or recreation, regardless of the weather outside. This isn’t just about moving items from one point to another; it’s about creating a mobile extension of your business or passion project.

The 8.5x28 Double Axle Advantage: Stability, Space, and Strength

The dimensions of 8.5x28 feet offer a generous footprint, providing ample room for equipment, vehicles, or a complete office setup. This substantial space is supported by a double axle, or tandem axle, configuration. This design distributes weight more evenly, leading to superior towing stability, reduced sway on the highway, and an increased payload capacity compared to single-axle alternatives, making it a truly Heavy Duty solution.

More Than Just an Enclosed Cargo Trailer: Why Insulation Makes a Significant Difference

Insulation elevates a standard enclosed cargo trailer into a high-performance asset. It creates a thermal barrier that mitigates extreme temperatures, protects sensitive goods from heat or cold damage, prevents condensation buildup, and significantly reduces exterior noise. This single feature is the key that transforms a storage box on wheels into a comfortable, productive, and secure environment suitable for a vast range of applications.

The Core Advantage: Why Insulation is Non-Negotiable for Your 8.5x28 Trailer

The 8.5x28 Double Axle Advantage: Experience Enhanced Stability, Ample Space, and Robust Strength

Building upon the foundation of size, the tandem axles are the cornerstone of this trailer’s capability. With a higher Axle Rating, these systems can handle heavier, more demanding loads with greater safety. Each axle is typically equipped with its own set of electric brakes, ensuring responsive stopping power. This robust running gear, combined with durable Radial tires, provides the confidence needed to transport valuable assets securely over long distances.

Creating Comfort: A Controlled Environment for Occupants and Equipment

Insulation directly translates to comfort and operational efficiency. For a mobile office or workshop, it maintains a stable interior temperature, reducing the strain on heating or air conditioning units and lowering energy costs. This controlled climate is essential for productivity, allowing you to work comfortably year-round. It also creates a more pleasant environment for any temporary living or recreational use.

Your Vision, Expertly Engineered: From a Mobile Office to a Specialized Hauler – A Truly Adaptable Solution

The versatility of an insulated trailer is remarkable. The growing demand for flexible workspaces is evident, as the global modular mobile office market is expected to grow with a CAGR of 12.7% from 2025 to 2031. This trailer is the perfect platform for that need. Concurrently, it can be configured as a specialty hauler for classic cars, motorcycles, high-value electronics, or delicate catering equipment, where temperature stability is paramount for preservation.

Types of Insulation: Understanding Your Options for Optimal Performance

Several types of insulation are used in cargo trailers, each with distinct properties. Rigid foam board (like polystyrene) is common due to its excellent R-value, structural integrity, and moisture resistance. Spray foam insulation offers superior coverage, filling every gap and crevice to create an airtight seal that maximizes thermal efficiency and adds rigidity to the Side Walls. Understanding the options allows you to select the best material for your specific climate and intended use.

The Key Benefit: Why Insulation is Essential for Your 8.5x28 Trailer

Ultimately, insulation is an investment in protection and functionality. It safeguards your cargo from temperature-related damage, prevents rust-causing condensation from forming on interior surfaces, and dampens sound for a quieter, more focused workspace. For any application beyond basic hauling, from a contractor’s mobile command center to an artist’s traveling studio, insulation is the non-negotiable feature that ensures value and usability.

The Foundation of Strength: Key Specifications and Build Quality

Safeguarding Your Valuables: Precise Temperature Control for Sensitive Cargo

For businesses hauling sensitive materials—such as electronics, pharmaceuticals, fine art, or perishable goods—temperature fluctuations can be disastrous. An insulated enclosed cargo trailer provides a crucial layer of defense. By minimizing thermal transfer, it helps maintain a consistent internal environment, protecting your inventory from the damaging effects of extreme heat or cold and ensuring it arrives in pristine condition.

Robust Underpinnings: The Double Axle (Tandem Axle) System

The strength of any trailer begins with its running gear. The tandem axle system is critical for a trailer of this size, ensuring that the load is balanced and the ride is smooth. High-quality axles with an appropriate Axle Rating, paired with reliable electric brakes and a breakaway kit, form a comprehensive safety and performance package. This is further secured by heavy-duty safety chains and a 7-way Round plug for seamless electrical integration with your tow vehicle.

Creating an Optimal Environment: A Controlled Space for People and Equipment

Beyond cargo, the insulated space is ideal for people. The increasing use of trailers on job sites is a testament to their utility, with the global construction trailers market projected to grow from USD 10.31 billion in 2025 to USD 13.19 billion by 2031. An insulated trailer serves as an excellent on-site office, break room, or secure tool crib, shielding personnel and equipment from the elements.

Engineered for Endurance: Exterior Protection

Durability extends to the trailer’s exterior. A seamless Aluminum Roof offers superior protection against leaks and weathering compared to sectioned roofing. The trailer’s Main Frame is often protected by a thick layer of asphalt undercoating paint, which shields the steel from moisture, road salt, and debris, preventing corrosion and extending the life of the structure.

Boosting Functionality: Noise Reduction for Improved Productivity and Privacy

An often-overlooked benefit of insulation is its acoustic dampening properties. The insulation material absorbs sound waves, significantly reducing the amount of exterior noise that penetrates the trailer. This creates a quieter, more private interior, which is invaluable for a mobile office where concentration is key or for anyone seeking a peaceful retreat from a noisy environment like a racetrack or event venue.

Designing for Access, Airflow, and Illumination

Types of Insulation: Explore Your Choices for Peak Performance

When selecting insulation, consider the R-value, which measures thermal resistance—the higher the R-value, the better the insulating performance. Rigid foam panels are cost-effective and easy to install, while spray foam provides a monolithic, airtight barrier that excels in extreme climates. The choice depends on your budget and the level of climate control your application demands, ensuring you get peak performance for your investment.

Optimizing Internal Environment: Ventilation and Lighting

A well-designed trailer balances insulation with proper ventilation. A Roof Vent is essential for preventing heat buildup and allowing moisture to escape, maintaining air quality and preventing condensation. For illumination, modern LED lights are the standard, offering bright, energy-efficient lighting for both the interior and exterior. They consume minimal power, have an exceptionally long lifespan, and provide clear visibility for working or loading at any time of day.

The Impact of Side Walls and Roof: Ensuring a Comprehensive Thermal Barrier

For insulation to be effective, it must be comprehensive. Insulating the Side Walls is critical, but the roof is where the most significant heat gain or loss occurs. A fully insulated shell, including the roof, floor, and even the Ramp Door and Side Door, creates a complete thermal envelope. This holistic approach ensures there are no weak points, maximizing climate control efficiency and providing consistent protection throughout the entire enclosed cargo space.

Tailoring Your Trailer: Customization for Specialized Applications

The Foundation of Durability: Key Specifications and Construction Excellence

Customization is only valuable when built upon a solid foundation. Look for trailers with a robust Main Frame constructed from heavy-gauge steel tubing. Superior structural integrity is often indicated by construction standards like 16″ O/C Walls (16 inches on-center), which provides more vertical studs for greater wall strength and rigidity compared to wider spacing. This durable frame is the skeleton that supports all other custom features.

The Precision Specialty Hauler: Protecting Your Most Important Assets

The market for specialized hauling solutions is growing, with the global special category semi-trailer market projected to reach $22 billion by 2028. Your insulated trailer can be outfitted to meet these demands. Custom Options include recessed D-ring tie-downs bolted to the frame for securing vehicles, E-track systems for flexible cargo management, and custom cabinetry for organizing tools and equipment, ensuring every asset is transported safely.

Ideal Dimensions: Maximizing Your Usable Space with 8.5x28

The 8.5x28 footprint offers over 230 square feet of floor space, but vertical space is equally important. Specifying an increased INTERIOR HEIGHT—for example, 7 feet or 7.5 feet—can be transformative. This extra headroom allows for taller cargo, the installation of car lifts, ample clearance for working comfortably inside, and the ability to add overhead storage, dramatically increasing the trailer’s utility and versatility.

Making Your Ideal Insulated Trailer a Reality: Practical Next Steps

Solid Support: The Double Axle (Tandem Axle) System

When you begin the purchasing process, confirming the specifications of the tandem axle system is a crucial step. Verify the Axle Rating to ensure it meets your anticipated load requirements. Premium models, such as those in an Auto Plus series, may offer upgraded axles, suspension, and Radial tires for enhanced performance and longevity. This is the core of your trailer’s hauling capability.

Investing in Your Future: Understanding Financing Options

A high-quality insulated trailer is a significant investment, and flexible purchasing options can make it more accessible. Many dealers offer competitive financing options, allowing you to spread the cost over time and get the exact trailer you need without a prohibitive upfront expense. Inquiring about these plans is a practical first step toward ownership.

Exceptional Structural Integrity: Main Frame and Wall Construction

Before finalizing your decision, review the build specifications or inspect sample photos. Pay close attention to the construction of the Main Frame and the 16″ O/C Walls. This detailed examination ensures you are investing in a durable, well-built structure that will provide years of reliable service. Once purchased, you will receive a certificate of origin and a unique VIN number, which are essential for titling, registration, and insurance. Convenient delivery options can bring your custom-built trailer right to your location, ready to be put to work.

8.5 x 28 enclosed trailer for sale

Conclusion

Building your ideal 8.5x28 double axle insulated trailer is an exercise in foresight and planning. It’s about creating a tool that perfectly matches your needs today while offering the flexibility to adapt to new challenges tomorrow. By starting with a foundation of strength—a robust Main Frame, reliable tandem axles, and superior 16″ O/C Walls—and enhancing it with the critical advantage of insulation, you create more than just a cargo trailer. You create a versatile, climate-controlled mobile platform. Whether destined to become a productive mobile office, a secure specialty hauler for high-value assets, or a multi-purpose workshop, this trailer represents a smart and durable investment. As the global trailer market continues its steady growth, owning a versatile and customized asset positions you for success. The next step is to explore the available Custom Options, review sample photos for inspiration, and begin designing the trailer that will empower your business or passion project for years to come.

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Pickup Address:

Make My Trailer LLC

91 Harvey Vickers Road,
Douglas, GA, 31535

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