An RGN (removable gooseneck) is a lowboy trailer whose front neck detaches so the deck can drop to the ground, letting tall or low-clearance equipment drive or winch on at a shallow angle. Instead of climbing a steep ramp at the rear of a standard flatdeck, machinery rolls straight onto a deck that sits close to the pavement. Across Canada, RGN trailers are the standard choice for tracked and wheeled equipment that is either too tall to pass under bridges on a normal deck or too fragile in its undercarriage to handle a steep loading angle.
What It Means in Practice
Carriers reach for an RGN when the cargo's height, ground clearance, or loading geometry rules out a simpler setup. A standard flatdeck or step-deck trailer works fine for most agricultural implements, shipping containers, and low-profile machinery — but once you're dealing with a wheel loader, a tall excavator, a crane carrier, or anything with limited approach angle, the rear-loading ramp on a flatdeck becomes a real risk. The gooseneck detaches, the deck lowers to just a few inches off the ground, and equipment drives on under its own power or gets winched on if it isn't running.
Detachable-neck decks typically run lower and longer than standard flatdecks, which changes the math on legal height even before the cargo is loaded. That lower deck height is exactly why RGN is chosen in the first place — it buys back clearance that a taller deck would eat into. Depending on final stacked height, width, and weight, oversize load permits may still be required even with the height savings an RGN provides. Our heavy equipment shipping team evaluates the actual dimensions of your unit before quoting equipment type, not the other way around.
When It Matters for Your Quote
To match your machine to the right trailer, we need a few specifics up front: whether the equipment is running or non-running (this determines if winching is required), its overall height, length, and width in transport position, and its operating weight. Track width and undercarriage clearance matter too, since they affect how the machine settles on the deck. A machine that's non-running or has a damaged undercarriage takes longer to load and may need a winch-equipped RGN rather than a drive-on setup.
Depending on the combined length and width of the loaded trailer, an escort vehicle may be necessary on certain routes — this is determined on a load-by-load basis once dimensions are confirmed, not a fixed rule. Getting accurate dimensions and weight to us early avoids day-of-pickup surprises and keeps the quote accurate the first time.
Related Terms and Services
RGN trailers are one piece of a broader heavy equipment transport plan that also covers routing, permitting, and escort coordination. If you're weighing whether your load actually needs a detachable gooseneck versus a simpler deck, our comparison of flatdeck vs. step-deck trailers breaks down when each makes sense. For loads that are self-propelled and don't need a trailer at all, see tow-away transport. Other useful references include beam width for machines with wide tracks or outriggers, and oversize load permits for understanding when extra paperwork applies.
Frequently Asked Questions
What does RGN stand for?
Removable gooseneck — the front section that couples to the tractor can be detached so the deck ramps to ground level.
Do all heavy machines need an RGN?
No. Many excavators and tractors move on flatdeck or step-deck. RGN is for cases where height or ramp angle makes those unsafe or illegal.