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Built to handle the special requirements of the construction industry

A photo that shows the Magnitude trailer from a side view.
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Magnitude Lowbed Trailers

Hydraulic detachable gooseneck trailers, available with fixed or modular deck, all spread axle capable trailers for the construction industry

  • 55 to 80 ton capacities
  • Multiple deck lengths and designs
  • Flip neck ready
  • Flip axle ready
  • Fixed and modular bogies
  • Air ride bogies

Standard Features

  • 7-Position gooseneck ride height
  • Toolbox (front of deck)
  • 8' 6" deck width with outriggers
  • Recessed deck crossmembers
  • Tridem air ride bogie
  • 54.5" bogie spread (55 ton)
  • 60" bogie spread (60HD & above)
  • FLD, DSR or BMD deck styles
  • Air lift 3rd axle
  • 7-Position bogie ride height adjustment


  • Dual kingpin
  • 9' deck width with outriggers
  • Flip ramps, hammer plate
  • ABS
  • 60" bogie spread
  • Flip box, flip axle(s) compatible
  • Nitrogen Spreader (EQ1, 2 or 3)
  • Load scales, tire inflation systems, paint, tires, wheels & more

Magnitude Models

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View our full lineup of construction and extendable trailers to compare their features.

Key Fontaine Specialized Magnitude Lowbed Trailer Features

From the Specialized lowbed industry leader
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Fastest gooseneck in the industry.


Hydraulic removable “hook & shaft” design on Fontaine Heavy-Haul is superior to ordinary pin & plate method. It offers greater versatility so you can connect/disconnect on uneven ground. A v-guide on deck helps position the gooseneck for faster & easier operation.

Glad hands and hose connections are protected


Glad hands are recessed to avoid damage. Inlet and return hydraulic connections also protected.

Convenient removable kingpin


You can reposition or replace a damaged kingpin on your lowbed trailer with ease. Dual kingpin slots let you reposition the kingpin from 102" swing radius to 81" swing radius. Use 81" kingpin position to comply with kingpin-to-rear-axle restrictions.

Hydraulic pony motor power unit


Optional 13HP Honda pony motor makes trailer “self-contained” so you can operate the gooseneck without being connected to truck wet line kit.

Dual prong frame jack


Steel reinforced design connects to the rails on both sides of the tractor to prevent the gooseneck from shifting side to side. The design offers superior stability compared to single prong frame jacks.

Convenient controls


Controls are clearly marked and easy-to-operate. The left control is for the frame jack assembly, and the right control raises/lowers the deck. You can operate the gooseneck using a wet line kit from the tractor or an optional pony motor to make the trailer “self contained”.

Easy ride height adjustments


Very durable design is EASY to operate. Single cam pawl offers 5 ride height positions on your lowbed trailer and the dual cam pawl design offers 7 ride height positions.

Mechanical locking pin


The mechanical locking pin is easy to operate and more durable than air-pin designs. Plus, it’s easier to repair in the field and that means less downtime.

Find your local Fontaine Dealer.

Your local Fontaine Dealer is a true trailer professional. They can answer your questions and help you configure your forklift trailer to match your specific application.

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Contact Us
Main Office
Fontaine Specialized

5398 US Highway 11, Springville, AL 35146
Direct Dial: 205-467-1803
[email protected]
General Office: 205-467-6171

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