General Tandem Axle Utility Trailer

Model: GTU

A robust take on the general use tandem axle utility trailer market. Built to haul. Built to trust. Built to last.

*Note: Model being discontinued in Spring 2021.

At a Glance

GVWR: 7,000 lb
LENGTHS: 12′- 20′
PULL TYPE: Bumper Pull
AXLES: 2 – 3,500 lb Lippert Axles

Diamond C GTU Tandem Axle Utility Trailer

Engineered Channel Cross-Members

Exclusive to Diamond C, the GTU features 2″ Engineered Channel Cross-Members constructed from Grade 50 material. These are lighter, more durable, and feature a superior strength-to-weight ratio when compared to traditional Cross-Members.


Find a Trailer Dealer Map

How Do I Order a GTU?

Great question! Keep scrolling to customize and build your GTU trailer to your liking with our interactive build-your-own trailer configurator, then you will be prompted to submit your trailer build to your nearest Diamond C dealer for quote and availability. We have an extensive dealer network of almost 200 dealers strategically placed throughout North America.

*Note: This model is being discontinued in Spring 2021.

Popular Upgrades

Expanded Metal Sides

Expanded Metal Sides

Upgrade your GTU with up to 24″ tall expanded metal sides to create the perfect landscape trailer. Read more HERE.

Model GTU Utility Trailer 10

10" Tongue Box

Many storage options available, including this handy lockable 10″ tongue box. Find our more about our storage options HERE.

Quality Trailers Since 1985

Diamond C has been an industry leader for over 35 years since our humble beginnings over 3 decades ago. We strive to be on the forefront of trailer manufacturing by continuously demonstrating excellent quality and value, cutting edge innovation, and superior customer service.


DM Powder Coating System

Our custom Difference Maker DM COATING SYSTEM produces extraordinary trailer finishes that are exceptionally durable and beautiful. We offer multiple standard and custom COLORS to perfectly compliment your trailer.

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More Than Just a Trailer

Crabb Family

Family Owned and Operated

35 years ago a young East Texas couple embarked on a journey that at the time was merely a means to put food on the table for their growing family. Unbeknownst to them, their nature would have an endless impact on the business they would create…


Diamond C Team Members

This is who we are and what makes us Different

Our Purpose is to fuel the growth and success of Diamond C team members, our customers, and our community.
Our Niche is extraordinary trailers and service to match.
Our Core Values are Do Work and Love Strong.


Auto Latching Bi-Fold Gate

Our BI-FOLD GATE design folds in the center for seamless, auto-latch operation. A gas-spring assists in ease of lifting and lowering, and the folded design improves visibility, reduces wind drag, and increases fuel economy.

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Learning Center

Your one-stop-shop for everything trailer related. In-depth articles and resources about our trailers, options, culture, and what makes us stand apart from the other guys.


Side Load ATV Package

Need to front load an ATV, side-by-side, or mower? Select our SIDE LOAD option in the configurator below and pick between Ramps or a Bi-Fold Gate!
*Note: Side Load only available on 14′-20′ length models.

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Finance Your Trailer

Finance a brand new GTU with ease through one of our trusted financial partners. Find out more HERE.

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Quality You Can Trust

We are proud of our trailers and stand by them. Every Diamond C trailer comes with an industry leading 3 Year WARRANTY.