How are Diamond C Trailers built?
Diamond C Trailer Dealers can be found all over the country, but they all start in Mt. Pleasant, Texas
When it comes to premium trailers for sale, few names stand out like Diamond C. If you’re on the hunt for trailers for sale in Minnesota, you’ve probably come across a Diamond C dealer or two in your search.
As a Diamond C trailer dealer in Minnesota, we got the opportunity to take a road trip down to Mt. Pleasant, Texas and get a peek behind the curtain at how Diamond C trailers are made. What did we see? Impressive doesn’t even cover it.

Trailers Built on Family and Big Ideas
The Diamond C Equipment Trailer wasn't built in a day, but a 40 year legacy
Over 40 years ago, Mike and Kim Crabb (founders) had a dream. To build better trailers. They weren’t looking to cut corners or crank out thousands of cookie-cutter haulers.
They started small, in East Texas, and grew Diamond C Trailers into one of the most respected names in the trailer industry.

A Trailer for Every Task
The Diamond C Trailer Line up has gooseneck trailers all the way to light weight Diamond C Utility trailers.
Hauling gear, gravel, cars, or heavy equipment? Diamond C has the perfect trailer to get the job done. Here's a quick rundown of what they offer:
- Diamond C Gooseneck Trailers – Check out the FMAX series, a powerhouse for big loads.
- Diamond C Dump Trailers - The LPT is a best-seller, while the WDT takes on massive jobs with ease.
- Diamond C Equipment Trailers - The new HXD model handles all kinds of jobs, from skid steers to small excavators.
- Diamond C Car Haulers - The GTF makes transport smooth and secure.
- Diamond C Utility Trailer - Back in high demand, the PSA model is a go-to for everyday tasks, from yard work to jobsite runs.
- Diamond C Tilt Trailer - Makes loading difficult and low clearance equipment easy.

How its Made: Diamond C Gooseneck Trailer
Designing a Diamond C Trailer
Long before technicians cut, bend or weld any steel Diamond C Trailer Parts. A team of talented engineers built a blueprint for the trailer. Making sure the type of trailer they are creating can match the jobs they will be used for without falter.
There are no short cuts when it comes to design and building a Diamond C deckover trailer. This meticulous planning process pays off when the trailer enters its building stage.
Building A Diamond C Trailer
The first step of taking a large square of steel and turning it into a trailer starts at the beam plant where people assist laser cutting robots to get the best cuts while wasting the least amount of product. After being cut the individual pieces are sent to another facility.
The welding facility happens to be down the road this is where the trailer frame will be assembled. A skilled group of trades men and women manage the floor and quality control of the welding process. Preparing them for their next step, Diamond C DM powder coating.
Diamond C Trailers Are Durable
Diamond C Equipment trailers and others come standard with Engineered I-Beams. Every trailer frame is built with Engineered I-Beams, which means they’re lighter than most but still really tough. Their powder coat finish helps fight off rust, chips, and bad weather. And they’re loaded with features like better tie-down spots, smoother ramps, and upgraded jacks that make life easier.
Painting a Diamond C Trailer
The DM powder coating is a Diamond C designed system to create “extraordinary trailer finishes.” Where “DM” stands for “Difference Maker”.
Here is the DM Powder Coating Process according to the Diamond C Website
- The trailer frame is blasted with steel shot to add an anchor profile for the primer to really stick to.
- Each trailer frame is put through a 5-stage wash process to clean the steel, add corrosion resistance, and balance pH.
- Alkaline wash removes blast dust and oils
- High-pressure rinse
- Phosphate salt rinse inhibits rust and helps with paint adhesion
- High-pressure rinse
- Final sealing rinse is applied
- All wash water is reverse osmosis purified to ensure consistency
- All washed trailer frames are quickly force dried through a dry-off oven at 300 degrees.
- Ultra-corrosion-resistant Onecure Zinc Epoxy Primer powder coating is electrostatically applied to the entire trailer frame.
- Smooth, high gloss, Onecure Technology Top Coat is electrostatically applied to the entire trailer frame.
- Finally the top coat is cured in a 165′ oven at 450 degrees. All steel surpasses 425 degrees to ensure complete curing of primer and top coat.

Assembling a Diamond C Trailer
Assembly and quality control are the final steps before trailers ship to Diamond C Dealers. Finally assembly looks a lot like adding and testing lights, wires and decals.
A Diamond C trailer will never leave the final building until it passes quality control. A special team will test all the components on the trailer to make sure everything is working how it is supposed to.
Diamond C Dealers
The Diamond C campus features an impressive Shipping area with a massive shop and bays for dozens of semi trucks. These trucks are loaded to the max with Diamond C Dump Trailers, Utility Trailers, and everything in between.

Diamond C Dealer Campus Visit
Here at Central Trailer Sales we love being your local Diamond C Dealer in Minnesota. Getting to visit the facility, and meet the people who make the trailers was an amazing experience. The people at Diamond C are truly rare gems themselves. If you want to see more from the facility check out the Full video on our YouTube Channel:
Find Your Diamond C Trailer in Minnesota
If you’re searching for a Diamond C Trailer Dealer near Minneapolis, you don’t need to travel to Texas. We carry the entire Diamond C Trailer lineup, contact our team now. Whether you need a hard-working dump trailer, a sleek car hauler, or something custom-built, we’ve got you covered.
FAQ:
Where are Diamond C Trailers Made?
Diamond C Trailers are made at the Diamond C Campus in Mt. Pleasant Texas. They have been manufacturing premium grade open steel trailers since 1985.
Are Diamond C Trailers any Good?
Diamond C trailers are considered to be Primenum grade open steel trailers, known for tier engineered I beam frame and build quality. This is often reflected in the price, in comparison to similar trailers that offer similar trailers.

