Fontaine Double Drop Expandable Trailers For Sale in Pennsylvania

Fontaine double drop expandable trailers are built for freight that is too tall, too long, or too specialized for a standard flatbed or fixed double drop. Buyers usually start with deck geometry and loaded height. A low main deck, often around 20 inches on certain configurations, creates the clearance needed for taller machinery, tanks, components, and construction equipment. The expandable well adds flexibility for freight that changes from job to job, with closed lengths suited to shorter loads and extended lengths that can handle long, concentrated cargo without stepping up into a full specialized platform trailer.

On a Fontaine, pay close attention to the dimensions that affect real-world loading and routing: closed and extended main deck length, rear deck length, overall width, kingpin setting, loaded deck height, and ground clearance. These trailers are commonly spec'd around 102 inches wide, with concentrated capacity ratings that vary by axle group and spread. The kingpin setting matters more than many buyers expect because it influences bridge compliance, fifth wheel position, and how the trailer balances with different tractors. Ground clearance is equally important on low-profile double drops, especially in Pennsylvania and the Northeast where uneven jobsite entrances, older pavement transitions, and tighter turns can punish a trailer that sits too low.

The expandable design makes this category attractive for fleets hauling excavators one week and longer fabricated components the next. Fontaine's reputation in specialized hauling comes from practical details that matter over time, including deck construction, crossmember strength, loaded stability, and how the extension system holds up under repeated use. Buyers comparing used units should inspect the neck, sliding or telescoping sections, outriggers if equipped, suspension condition, brake wear, tire condition, and signs of stress around welds and beam transitions. On any double drop expandable, the condition of the deck floor, air and electrical lines, and ramp or loading provisions can affect both uptime and loading speed.

This category is also commonly referred to as an extendable double drop trailer or a lowboy-style expandable trailer, although true lowboy configurations can differ by neck design and loading method. For many operations, a Fontaine double drop expandable is the right middle ground between a fixed well trailer and a more dedicated heavy-haul setup. It gives you a lower carrying position than a flatbed and more length flexibility than a standard double drop, which is exactly what matters when freight dimensions change faster than your trailer lineup can.