Fontaine Double Drop Deck Trailers For Sale

Fontaine double drop deck trailers are built for freight that will not fit comfortably on a standard flatbed or step deck. Also called lowboy-style double drops or detachable gooseneck heavy haul trailers, these units are designed to carry taller machinery by placing the main deck down between the front neck and rear bogie. That lower well deck is the key buying point. It helps keep loaded height under legal limits while improving stability on construction equipment, agricultural machinery, and other dense, high-center loads.

On Fontaine models in this category, buyers will commonly see 40 ton to 55 ton class configurations, including mechanical detachable gooseneck and hydraulic detachable neck designs. Loaded deck heights around 18 to 20 inches are common, along with clear deck lengths near 29 feet and extendable designs that can open to roughly 50 feet on certain Magnitude and Renegade models. Tandem axle and tridem axle layouts are both relevant depending on the weight target, bridge law requirements, and the states you run most often. Air ride suspension, fixed axle groups, aluminum or steel wheels, wood floors, and multiple pairs of outriggers are all common spec points that directly affect payload flexibility and service life.

The right spec usually comes down to how you load and where you haul. A mechanical neck can be a solid fit for fleets that want a simpler detachable setup with fewer hydraulic components to maintain. A hydraulic neck can speed loading cycles and make life easier with frequent equipment loading, especially when operators are dealing with varying jobsite conditions. Swing clearance, front ramp design, deck profile, and rear deck length all matter if you are moving excavators, pavers, compactors, or tall self-propelled equipment. Buyers should also pay close attention to axle spread, flip axle compatibility, wet-line requirements, and whether the trailer is prepped for a pony motor, since those details affect permitting, legal payload, and expansion options later.

Fontaine has a strong presence in specialized hauling because these trailers are typically engineered around practical fleet concerns like corrosion resistance, low tare weight, and modular upfit capability. When comparing listings, focus less on the stated ton rating alone and more on the actual GAWR, GVWR, deck dimensions, ground clearance, loaded deck height, and attachment points for flip boxes or close-coupled flip axles. Those are the details that determine how useful the trailer will be in day-to-day heavy haul work. A well-matched Fontaine double drop deck trailer can cover a broad range of machine transport while keeping loading efficient and permit compliance more manageable.