
Heavy Haul Equipment
Girder Frame Transport System
Low-deck heavy transport for tall, heavy cargo where road clearance is tight.
When clearance is the constraint
Most heavy haul setups put the load on top of the trailer deck. That works until the cargo is tall — at which point the combined trailer-plus-cargo height bumps into bridge clearances, overpass restrictions, and overhead utilities.
A girder frame transport system solves that by carrying the cargo between two longitudinal girders rather than on top of them. The deck height drops, the cargo’s effective road height drops, and routes that were impossible become possible.
What we carry on girder frame
- Power transformers — particularly the largest substation units
- Tall refinery vessels — columns, towers, reactors with high vertical profile
- Heat exchangers — large diameter
- Industrial process equipment with tall geometry
How it pairs with other services
- Permits and routing — clearance analysis is critical for tall loads
- Cranes for the lift on and off the girder frame
- SPMTs when the heaviest girder loads also need on-site placement
Talk to dispatch about a girder frame move › or call 405-506-1850
Frequently asked questions
What is a girder frame transport system?
A girder frame is a heavy transport configuration where the cargo rides between (rather than on top of) two main beams or girders, supported by hydraulic axle lines on each side. The deck height is significantly lower than a standard hydraulic trailer, which is essential for tall cargo navigating overpasses and bridges.
When is a girder frame the right choice?
When the cargo is tall enough that a standard trailer would exceed overhead clearance — power transformers, tall vessels, large reactors. Lowering the deck height by even 12–24 inches can be the difference between a routable load and an unroutable one.
How heavy can a girder frame system carry?
Capacity scales with axle line count. We configure girder frame systems in the 200,000+ lb range and up. Specific capacity depends on configuration and route.

24/7 Dispatch · Nationwide
Tell us what you need to move.
One call covers the crane, the haul, and the logistics. We’ll spec the crew, the equipment, and the route — and put a written quote in your hands.
Request a Quote 24/7 Dispatch Lines
- Crane & Rigging405-373-2979
- Heavy Haul405-506-1850
- Bulk Logistics405-506-1869