What Is A Lowboy Trailer? – A Quick View

Freight Rate Central

With all the different specialized trailers being pulled by freight transportation companies across the world, covering every stretch of road imaginable…. most likely you have seen your fair share of low-boy trailers (even though you may not have known it). A low boy trailer, also known as a double drop, low loader, low-bed, or a float depending on what part of the world you are in, is a semi-trailer with a drop deck. A lowboy trailer has two drops in the deck, the first drop is right behind the gooseneck and the second drop is right before the wheels, this allows the trailer to sit extremely low to the ground. The drop in the trailer is designed to allow the ability to ship oversized items or equipment that exceeds normal height restrictions for transportation (which is typically any freight over 8′ high).

What Is A Low Boy Trailer Used For?

Oversize load being hauled on a lowboy trailerA lowboy trailer is commonly used to haul heavy equipment and machinery, such as excavators, bulldozers, and other large construction equipment. Lowboy trailers are perfect for hauling large equipment like this because they are usually tall and wide and would exceed standard legal height and weight restrictions. The maximum weight for a two axle low boy trailer is 40,000 pounds, but the weight limit can be increased up to 80,000 pounds total weight of trailer, and load depending on the number of axles required. The low-boy trailer is capable of handling loads with a maximum height of up to 14 feet tall. For dependable trucking services and equipment transportation, the lowboy trailer is essentially designed to transport oversized goods that often exceed the legal height requirements of transportation by a flatbed trailer.

Lowboy Trailer Maximum Dimensions

low boy trailer hauling a tractor

  • Maximum Lowboy Well Length: 24 ft – 29.6 ft

  • Maximum Lowboy Well Height: 18 in – 24 in

  • Maximum Legal Trailer Width: 8.5 ft

  • Maximum Legal Freight Height For Trailer: 11.5 ft – 12 ft

  • Maximum Legal Overall Load Height  For Trailer: 14 ft

Lowboy’s Maximum Weight

The maximum overall weight is 40,000 pounds for a standard 2-axle Low-Boy trailer; but can take additional weight of up to 80,000 pounds depending on the number of axles the trailer possesses (weight of the trailer and weight of the load added together).

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