Everything you need to know about the
8.5x34 Triple Axle – Diamond Cargo
- 8.5x34 Double
- Maintenance & More
8.5x34 Triple Axle – Diamond Cargo
1. Technical Features Table
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| Standard Features | Diamond |
| PRICE | $12,345.00 |
| EXTERIOR METAL | .080 Polycore Exterior (Semi-screwed) |
| AXLES | Triple 6000lb USA Made Lippert Drop Leaf Spring Axles |
| V-NOSE | V Nose (Standard) |
| ELECTRIC BRAKES | Axles w/ Electric Brakes |
| DOME LIGHT | (2x) 12V LED Dome Light with switch |
| WALLS/CEILING TUBING | 1.5" x 1" steel tube in walls and ceiling |
| FLOOR TUBING | 8" steel tube main frame |
| FLOOR CROSS-MEMBERS | Floor Members 16" O.C. |
| ROOF CROSS-MEMBERS | Roof Members 16" O.C. |
| WALL CROSS-MEMBERS | Wall Members 16" O.C. |
| LIGHTS | All LED exterior lighting incl. Rear Loading Light |
| INTERIOR HEIGHT | 7' (84") Interior Height |
| REAR DOOR | Heavy Duty Ramp Door w/ Spring Assist & 16" Extension Flap / Door Hold Back / (2) Rear Door Handles |
| PLUG / COUPLER (BALL) | 7-way Round Bargman Plug / 2 5 / 16" Coupler |
| SIDE DOOR | 36" RV-Style Side Door w/ Flush Lock |
| ATP | ATP In Stepwell / ATP Front & Rear Corners |
| TIRES | ST235 15" Radial Tires |
| RIMS/WHEELS | Silver Painted Wheels |
| ROOF MATERIAL | One Piece Aluminum roof |
| STONEGUAR | 24" Stoneguard on front |
| TONGUE JACK | 5000 lb A-Frame tongue jack w/ Sand Foot |
| HUBS | EZ Lube Hubs |
| THERMA-PLY | Therma-Ply Ceiling |
| WALL MATERIAL | Premium 3/8" plywood sidewalls |
| FLOOR MATERIAL | 3/4" plywood floor/undercoated |
| SIDEWALL VENTS | Plastic Sidewall Vents |
| DRINGS | (4) 5000lb D-Rings Welded to Frame |
| BEAVERTAIL | No Show Beavertail |
| TONGUE | Triple Tube Tongue |
| EMPTY WEIGHT | 5000 lbs |
| LOAD CAPACITY | 10600 lbs |
| GVWR | 15600 lbs |
| TONGUE WEIGHT | 720 lbs |
2. Technical FAQ

Overall Length: 37’6″ / 450 in (Breakdown: 34′ 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: 8’4″ / 100 in (Breakdown: 7′ on the Box + 16″from the ground to the box)
Overall Length: 33’9″ 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: 7′
Width: 90″ (Breakdown: Subtract 12″ (6 on each side) which counts for plywood & framing)
Height: 78″ (Breakdown: Subtract 6″ which counts for plywood & framing)
7-way Round plug
5x4.5 (5 Lug)
5200 lb Axles: 8 Ply
6000 lb Axles: 10 Ply
Screws are 4′ apart instead of being every 2′
It’s an asphalt undercoating paint
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

5. Sample Colors (Click to enlarge)
6. Purchase FAQ
Click the link below for Financing Options:
https://makemytrailer.com/enclosed-trailer-financing-services/
Click the link below for Delivery Options:
https://makemytrailer.com/delivery/
30 Day Temporary Tag, Certificate of Origin and obviously your Title so you can register your brand new trailer
Yes they are and also the reason why your trailer pick up is directly at the Factory.
We do not charge any taxes, that’s something that you pay when you register the trailer
Yes, as soon as your trailer is ready we can provide your with your VIN number.
1) Credit or Debit Card (over the phone or invoice sent to your email)
2) Mail a Cashier’s Check
3) Wire Transfer
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
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
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
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!
- Step-by-step instructions on pre-use checks to ensure safety and readiness for the road.
- Expert advice on periodic maintenance routines to keep your trailer in peak condition.
- DIY tips for interior and exterior care, from flooring maintenance to rust prevention.
- Winterizing strategies that protect your investment through the coldest months.
- Essential insights into tire care, brake maintenance, and the importance of proper ventilation.
- Bonus content: Safety equipment checklist, emergency preparedness, and much more!
Safeguard Your Investment:
10 Smart Ways to Prevent Trailer Theft!

8.5x34 Triple Axle Diamond Cargo Trailers: Your Ultimate Hauling Investment
Introduction: Why a 8.5x34 Triple Axle Diamond Cargo Trailer is Your Next Smart Move
When your hauling needs surpass standard solutions, the search for a trailer becomes a quest for a long-term business partner. You require more than just space; you need uncompromising stability, exceptional capacity, and the durability to withstand demanding daily use. For professionals, serious hobbyists, and anyone who refuses to compromise on quality, the answer isn’t just a bigger trailer—it’s a smarter, more capable one. This is where the 8.5x34 Triple Axle Diamond Cargo Trailer emerges as not just a purchase, but a strategic investment in your operational efficiency and peace of mind.
Redefining Heavy-Duty Hauling: The Unique Value Proposition
An 8.5x34 enclosed cargo trailer represents a significant leap in capability. It’s a mobile warehouse, a secure workshop, and a reliable transport solution all in one. The addition of a triple axle configuration elevates this platform from a large container to a high-performance hauling machine. This specific combination delivers a unique value proposition: the ability to safely and legally transport immense weight and volume with a level of road stability that tandem axle models simply cannot provide. It’s designed for those who move heavy equipment, multiple vehicles, or substantial inventory, where safety and reliability are non-negotiable.

The “Investment” Mindset: Maximizing Return on Your Hauling Solution
Viewing this trailer as an investment rather than an expense shifts the entire decision-making process. An investment implies a return, which in this case manifests in several ways: operational efficiency, protection of valuable assets, enhanced business capability, and superior resale value. The robust construction and advanced features of a Diamond Cargo trailer ensure it withstands years of rigorous use, minimizing downtime and repair costs. This long-term durability means your initial price outlay is rewarded with a longer service life and a higher return when it’s time to sell or upgrade.
Unpacking the Power: What Defines the 8.5x34 Triple Axle Advantage
The true prowess of this trailer lies in the synergy between its specific dimensions and its powerful running gear. It’s an engineered solution designed to solve complex hauling challenges with stability, capacity, and unwavering performance.
Unmatched Stability and Capacity: The Triple Axle Foundation
The core of this trailer’s superiority is its triple axle design. While a tandem axle is sufficient for many cargo trailers, the 34-foot length and substantial Gross Vehicle Weight Rating (GVWR) demand a more robust foundation. A triple axle configuration distributes the load across six wheels instead of four, offering several critical advantages. Firstly, it dramatically increases payload capacity, allowing you to haul heavier, denser cargo. Secondly, it enhances stability by creating a longer, more secure footprint on the road, significantly reducing trailer sway caused by crosswinds or passing trucks. Finally, in the event of a tire blowout, a triple axle setup provides a greater margin of safety, allowing for more controlled handling.
Precision Sizing for Specialized Needs: The 8.5x34 Dimensions
The 8.5-foot width is the maximum standard, providing ample interior space for vehicles, wide equipment, or palletized goods. The 34-foot length offers a cavernous interior, ideal for transporting multiple items, such as a race car and all its support gear, a collection of ATVs, or a full load of contracting materials. This specific size is a sweet spot for many applications, offering massive volume without venturing into the territory of custom-built, oversized trailers that may require special permitting. It is the definitive choice for serious car haulers and businesses that need to maximize cargo per trip.
Dependable Performance: Wheels, Tires, and Connectivity
Performance isn’t just about size; it’s about the components that connect the trailer to the road. These models are equipped with high-quality radial tires, which offer better heat dissipation, a longer tread life, and a smoother ride compared to bias-ply alternatives. Each axle is fitted with electric brakes, a crucial safety feature that provides independent stopping power for the trailer. This synchronized braking is essential for controlling such a substantial load, reducing the strain on the tow vehicle’s brakes and ensuring safer, shorter stopping distances.
Diamond Cargo Excellence: A Commitment to Durability and Craftsmanship
Diamond Cargo has built its reputation on constructing trailers that are engineered to last. The brand’s commitment to using superior materials and proven manufacturing techniques ensures that your investment is protected by a foundation of quality and durability.
Built to Last: Superior Construction Materials
The longevity of any enclosed trailer begins with its frame. Diamond Cargo utilizes a robust steel tube main frame and cross members, providing a rigid skeleton that resists flexing and torsion under heavy loads. The exterior is often clad in durable Polycore panels, which offer a smooth, clean finish that is more resistant to dents and waves than traditional aluminum. Protecting everything from the elements is a one-piece aluminum roof, a critical feature that eliminates seams and drastically reduces the potential for leaks, safeguarding your valuable cargo from water damage.
The Diamond Cargo Standard: Quality Beyond the Basics
Beyond the core structure, Diamond Cargo’s commitment to quality is evident in the details. The interior flooring is typically 3/4″ plywood, providing a strong and resilient surface capable of handling forklifts, vehicles, and heavy equipment. The walls are lined with 3/8″ plywood, offering a sturdy surface for securing cargo and installing custom options like shelving or cabinets. This attention to foundational quality ensures the trailer not only performs well on day one but continues to serve reliably for years, solidifying its status as a wise long-term investment.
Intelligent Design: Optimizing Access, Security, and Versatility
A great trailer isn’t just strong; it’s smart. The design of an 8.5x34 Diamond Cargo trailer focuses on user efficiency, ensuring that loading, securing, and accessing your cargo is as seamless and safe as possible.
Streamlined Access for Every Scenario
Effective access is crucial for an efficient workflow. The primary point of entry is the heavy-duty ramp door, engineered with spring-assist for easy operation despite its size. This robust ramp often includes an extension flap to create a gentler angle, simplifying the loading of low-clearance vehicles or rolling equipment. In addition to the main ramp, a side door provides quick and convenient access to the front of the trailer without needing to lower the ramp. This feature is invaluable for retrieving tools or checking on cargo mid-trip, saving time and effort. These dual-access doors make the trailer incredibly versatile.
Secure Your Valuable Cargo: Tie-Downs and Storage Solutions
Protecting your assets in transit is paramount. This enclosed trailer is equipped with strategically placed, heavy-duty D-ring tie-downs, typically rated for 5,000 lbs. each. Bolted directly to the frame, these D-rings provide exceptionally strong anchor points for securing vehicles, machinery, and other heavy items. The ample interior space also serves as secure, mobile storage. Whether you’re parking equipment overnight on a job site or storing a classic car during the off-season, the trailer provides a locked, weatherproof environment that protects your property from theft and the elements.
Transforming Your Trailer: Customization for Specialized Applications
While the standard models are highly capable, their true potential is unlocked through customization. A wide array of options allows you to tailor the trailer to your exact needs. For car haulers, this might mean adding a winch, an escape door over the fender, or specific flooring. Contractors might opt for ladder racks, interior shelving, and electrical packages to create a mobile workshop. These customization options transform a standard trailer into a specialized tool designed to enhance your productivity and efficiency.
Enhancing the Investment: Smart Features for Functionality and Comfort
Modern cargo trailers incorporate features that go beyond basic hauling, focusing on safety, user convenience, and long-term maintenance to maximize the value of your investment.
Illumination and Safety Features
Proper lighting is a critical safety component. These trailers come standard with a full LED light package, including tail lights, brake lights, and marker lights. LEDs are brighter, last longer, and consume less power than traditional incandescent bulbs. Interior dome lights provide visibility inside the trailer, while a dedicated rear loading light can illuminate the ramp area for safer loading and unloading in low-light conditions.
Convenience and Comfort on the Road
Long hauls and demanding jobs are made easier with features designed for convenience. Sidewall vents help to circulate air, preventing the buildup of fumes from vehicles or equipment. A V-nose design is a common feature on many models, which not only improves aerodynamics for better fuel efficiency but also adds valuable extra interior space at the front of the trailer.
Proactive Maintenance for Longevity
Protecting your investment involves proactive maintenance. The triple axle configuration requires regular checks of tire pressure, bearing lubrication, and brake function. The use of high-quality radial tires and reliable electric brakes simplifies this process. Keeping the aluminum roof clean and inspecting seals periodically will ensure its weather-tight integrity for the life of the trailer.
Real-World Applications: Maximizing Your Hauling Investment
The true measure of this trailer’s value is its performance in the field. Its combination of size, strength, and versatility makes it an indispensable asset across a wide range of professional and recreational activities.
The Professional’s Partner: Business and Commercial Uses
For businesses, the 8.5x34 triple axle is a productivity multiplier. Landscaping companies can transport multiple zero-turn mowers and a full suite of equipment in a single trip. Construction contractors can use it as a mobile tool crib and material storage unit, securing valuable assets on site. Mobile service businesses, from welders to event providers, can build out the interior as a complete mobile workshop, taking their entire operation directly to the client.
Fueling Passions: Recreational and Personal Uses
This trailer is a dream for serious recreational users. It’s one of the best car haulers on the market, easily accommodating race cars, show cars, or classic vehicles along with tools and spare parts. Powersports enthusiasts can load multiple ATVs, UTVs, or snowmobiles for epic excursions. For families, it can haul everything needed for a long-term camping trip or serve as a massive storage unit for personal belongings during a move.
Making Your Investment a Reality: Pricing, Financing, and Delivery
Acquiring the right trailer involves understanding its cost, exploring payment options, and navigating the logistics of purchase and delivery.
Understanding the Value: Price and Cost Considerations
The price of an 8.5x34 triple axle trailer reflects its significant capabilities and robust construction. While the initial cost is higher than smaller, tandem axle models, its value is found in its capacity, durability, and versatility. The final price will vary based on selected options and customizations. When evaluating the cost, consider it against the expense of making multiple trips, renting smaller trailers, or damaging cargo in an inadequate hauler.
Flexible Financing Solutions to Fit Your Budget
To make this investment more accessible, many dealers offer flexible financing options. Financing allows you to spread the cost over time, making it a manageable monthly expense for a business or individual. Working with a reputable dealer can help you find a financing plan that aligns with your budget, allowing you to acquire the asset you need to grow your business or support your passion.
Seamless Acquisition: Inventory and Delivery
Due to their specialized nature, it’s always wise to check on current inventory and lead times. A well-stocked dealer may have standard models available for immediate pickup. For customized builds, there will be a manufacturing lead time. Discuss delivery options with your dealer, as many offer nationwide delivery services, bringing your new trailer directly to your home or business.
Why Choose a 8.5x34 Triple Axle Diamond Cargo Trailer? The Ultimate Hauling Decision
When the demands are high and the cargo is valuable, the choice of a trailer becomes a critical decision. The 8.5x34 Triple Axle from Diamond Cargo stands as a definitive answer for those who require the best.
Summarizing the Core Advantages: Stability, Durability, and Versatility
This enclosed cargo trailer excels on three key fronts. Its triple axle foundation provides unmatched stability for safe, confident towing. Its superior construction, from the steel frame to the one-piece aluminum roof, ensures long-lasting durability. Finally, its immense and customizable space offers incredible versatility for a vast range of professional and recreational applications.
Long-Term Value and Return on Investment
This is more than just a trailer; it is a long-term asset. Its ability to protect valuable cargo, increase operational efficiency, and withstand years of heavy use provides a tangible return on investment. The quality construction also contributes to a higher resale value, ensuring it remains a valuable asset for years to come.

Diamond Cargo: A Brand You Can Trust for Your Hauling Needs
Choosing Diamond Cargo means investing in a brand known for quality and reliability. When you select an 8.5x34 Triple Axle model, you are acquiring a premium hauling solution engineered to meet the toughest challenges and provide years of dependable service, making it the ultimate investment for your serious hauling needs.
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