Dirtwork term
Low-boy Trailer
also called: lowboy, RGN trailer
Heavy-haul trailer with a low deck that hauls dozers, excavators, and other tracked equipment between job sites.
A low-boy is a flatbed trailer with a deep-drop deck between the gooseneck and the rear axles, low to the ground so tall tracked equipment can ride under the legal overall-height limit. Used to move dozers, excavators, and other heavy machines from job to job. Some have removable goosenecks (RGN, removable gooseneck) so equipment can roll on from the front rather than ramping up from the back.
Matching machine to trailer is a real consideration: a 35-ton excavator needs more trailer than a mini-ex. Texas highway load limits and route restrictions affect which jobs can take which machines without permits.
Why this matters to a customer: rural East Texas sites are far apart, and trailer time is real time on the job clock. Sites with hard-to-access driveways may force smaller equipment because the low-boy can't get in, which changes the bid.
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