Doonan: Your Premier Specialized Trailer Manufacturer Since 1973
With over 50 years of crafting high-quality Drop Deck and Flatbed solutions from Great Bend, Kansas, Doonan sets the standard for custom heavy haul excellence.
See The Doonan Difference in Action
Built to Last Quality
A Legacy of Specialized Trailer Manufacturing Excellence
Since 1973, Doonan Specialized Trailers has been the premier trailer manufacturer, focusing on custom engineering and superior build quality. Our journey of over five decades is marked by continuous innovation in the heavy haul sector:
Pioneering Design & Evolution
- Founding Pioneers: We started by crafting early hopper grain trailers, quickly evolving to introduce revolutionary, lighter aluminum/steel combo decks to the heavy haul market.
- The Core Product Line: Our renowned series includes the all-aluminum Titanium™, the lightweight combo Platinum™, and the foundational all-steel Black Gold™ series, offering engineered solutions for every hauling demand.
- Future-Focused Innovation: Keeping pace with tomorrow’s challenges, we recently launched the innovative Battery Hauler™ in 2025, a heavy-duty trailer designed specifically for specialized battery transport—a clear signal of our commitment to being a future-focused specialized trailer manufacturer.
As a leader in the custom trailer manufacturing space, we offer engineering excellence for every hauling challenge. Discover why the Doonan Difference means lasting quality and superior value.