Diamond T Trailers in Marion, TX
Heavy gooseneck flatdecks, tilts and equipment haulers from a family-run shop in Rattan, Oklahoma, building since 1995. Pierced-beam frames, sealed wiring and a 3-year structural warranty.
- Family-built since 1995
- Pierced-beam frames
- 3-year structural warranty
- Rent-to-own, no credit check
Built by a Family That Still Runs the Shop
Diamond T Trailer Manufacturing started in the fall of 1995, when Charles Teague and his son Philip opened a small shop in Rattan, Oklahoma. That shop has grown into an 85,000 square foot plant with overhead rail systems and its own in-house paint line, and it is still family-run.
Diamond T puts quality ahead of volume and sells through a hand-picked network of dealers. We carry it for customers who want a heavy gooseneck or a tilt with old-school frame work. Call or text 210-987-5042 to check what is on the lot or to spec one out.

What Makes a Diamond T Different
The details are in the frame, the wiring and the running gear, the parts you only notice after years of hauling.
Pierced-Beam Frames
Crossmembers pass through the main beam instead of being welded to its surface. That locks the frame together and lets the deck sit lower.
Sealed Electrical
LED lights on a sealed wiring harness, so a creek crossing or a pressure wash does not turn into a lighting problem.
Real Wood Decks
2x8 treated pine flooring is standard, with oak available when you want a harder deck.
Serious Running Gear
Dexter axles and slipper-spring suspension on the heavier models, with oil-bath hubs on the big goosenecks.
How to Read a Diamond T Listing
Our Diamond T listings lead with the size, then the model. Here is 10232DTF240, broken down:
flatdeck
GVWR
So a 7914SLT is a 79 in by 14 ft SLT tilt. Diamond T model names tell you the rating too: DTF259 is 25,900 lb and DTF300 is 30,000 lb.
The Diamond T Lineup
Everything Diamond T builds, and what each line does best. Ask us about any model that is not on the lot today.
Flatdeck Goosenecks
DTF240, DTF259 and DTF300 on tandem duals from 24K to 30K, plus single-wheel SWF models. Built for hay, pipe, round bales and heavy equipment.
Skid-Pro Haulers
SKP, HDSKP and SDSKP equipment haulers from 15K to 20K for skid steers, mini excavators and tractors.
Tilts
The light-duty SLT, the DO140TD deckover power tilt and the DTF240TD 24K gooseneck power tilt.
Dumps
DMP140, DMP160 and DMP200 in bumper pull or gooseneck, with 7-gauge one-piece floors.
Deckovers
DO and MDDO series with full-width decks for wide loads.
The Diamond T warranty
Keep your original receipt from the dealer, since the warranty requires it. Tires, axles, brakes and other purchased parts are covered by their own makers.
Diamond T at 5E Right Now
DTF240 Gooseneck Flatdeck
102 in wide, 32 ft long, 24,000 lb on tandem dual wheels. Diamond T DTF flatdecks are built on a low-profile pierced I-beam with a dovetail and a torque tube, which is why hay haulers and equipment operators ask for them by name.
SLT Tilt
A light-duty 79 in by 14 ft tilt for mowers, UTVs and small equipment. Tilt the deck and drive on, no ramps to lift.
Why Hay and Ranch Customers Like the DTF
A 32 ft gooseneck flatdeck on dual wheels carries a full load of round bales or a tractor and implement in one trip. Around Marion, Seguin and La Vernia that means fewer runs between the hay field and the barn, and less time on FM roads during cutting season.
Diamond T is not the same company as Diamond C. Diamond T is built in Oklahoma by the Teague family.

Buying Diamond T at 5E Trailers
We are a family-owned dealership in Marion, a short drive from Seguin, New Braunfels, Schertz, Cibolo and San Antonio.
- Rent-to-own with no credit check: driver's license and proof of insurance
- Financing for 570+ and 700+ credit scores
- Down payments starting at 10%
- Consignment for the trailer you are replacing: tell us about it in the quote form

Diamond T FAQs
Where are Diamond T trailers made?
In Rattan, Oklahoma, at a family-owned plant founded in 1995 by Charles and Philip Teague.
Is Diamond T the same as Diamond C?
No. They are separate companies. Diamond T is built in Oklahoma by the Teague family.
What is a pierced-beam frame?
A frame where the crossmembers run through holes cut in the main beams and are welded in place, rather than sitting on top or butting against them.
What is the biggest Diamond T gooseneck?
The DTF300 flatdeck, rated at 30,000 lb GVWR on tandem dual wheels.
Does 5E Trailers keep Diamond T in stock?
We carry Diamond T regularly, but units sell quickly. Check the listings or send us a quote request and we will tell you what is coming in.
Ready for Your Diamond T?
Tell us the deck length, hitch and rating you need, or the unit that caught your eye, and our team will get back to you with pricing, availability and financing options.







