When a load is too tall for anything else, it rides a lowboy. Its ultra-low deck sits just inches off the ground, buying the vertical clearance to move machinery that would otherwise blow past legal height limits.
Quick answer: A lowboy trailer has a very low deck — often 18–24 inches off the ground — built to haul extremely tall, heavy equipment under legal height. It's crane- or ramp-loaded and rated for heavy machinery, with axles added for heavier loads.
A lowboy drops the deck between two axle sets to the lowest practical height on the road. That extra clearance is everything: a machine that would stand 15 feet tall on a flatbed can ride legally on a lowboy, avoiding height permits and low-bridge reroutes.
Lowboys are built heavy — commonly rated from 40,000 lb up into the six figures with added axles. Where an RGN wins on drive-on convenience, the lowboy wins on sheer height clearance and load rating for the tallest, heaviest freight.
Equipment that exceeds legal height on any other trailer
Heavy, tall industrial units
Crane-loaded machines needing low deck height
Tall welded and cast structures
A lowboy is a heavy-haul trailer with a very low deck between its axle sets, designed to move extremely tall, heavy equipment under legal height limits. It's the trailer of choice when clearance is the constraint.
Because the deck rides so low, a lowboy can often keep a load under the 13'6" legal height that would otherwise require height permits and rerouting. Exact numbers depend on the machine and the route — we check both before we quote.
If the equipment drives on and off, an RGN is usually faster. If it's crane-loaded and the priority is maximum height clearance and load rating, a lowboy. We'll match the trailer to your machine.
Yes — full oversize/overweight permitting, route surveys, and pilot/escort coordination across every state on the route.
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