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12 Series - LCG™

Platform Rating
12,000 lbs.
Platform Length
20.5’ – 22’
Tow Rating
10,000 lbs.

12 Series - LCG™ Gallery

Miller Industries brings a whole new dimension to transport with the 12 Series LCG™ (Low Center of Gravity) carrier. The patented design lowers the deck height 5” – 6” over conventional carriers. The lower height allows for the transport of taller loads, such as forklifts or man-lifts, that may be over-height on a conventional carrier and also provides better stability during transport. 

The operator can easily secure loads or tie down vehicles while standing on the ground, thanks to the lower height. When mounted on most air ride chassis, with the air dumped, the 12 Series LCG™ has less than an 11-degree load angle, making it ideal for loading low-clearance vehicles or equipment without using ramps or wood. For fast and easy unloading of damaged vehicles or equipment, the 12 Series LCG™ has a 20-degree dump angle. Your new 12 Series LCG™ is available in 20.5’, 21’, 21.5’, and 22’ deck lengths with a capacity of 12,000 lbs. and a wide variety of options to fit your specific transport needs.



  • Platform Available in Aluminum or Steel
  • Floor Level Sides w/ Stake Pockets (Steel)
  • Bi-Hollow Structural Side Rails (Aluminum)
  • Right & Left Chain Trays
  • Safety Chains (2 Front, 2 Rear)
  • Painted in Black Acrylic Enamel (Steel)
  • Left & Right Side Illuminated Controls
  • Federal Standard #108 LED Lighting
  • 8,000 lb Hydraulic Winch w/ 50’ Cable
  • Full Function Wheel Lift System
  • Slide-In L-Arms w/ Anti-Theft Storage
  • Pre-Wired Electrical Junction Box
  • Adjustable Rear Stabilizer
  • Bed Built 102” Wide
  • 11 Key Slot Package (Steel)
  • 6 Key Slot Package (Aluminum)
  • Slide Pads
  • Bed Anti-Tilt Lockout
  • Roller Bed Positive Lock-Down
  • Two Lift Cylinders
  • One Extension Cylinder
  • Manual Shift Winch Clutch Release
  • Back-Up Lights & Alarm
  • Cable Tensioner
  • Cable Roller Guide
  • Tow Light Socket
  • Mud Flaps
  • Hydraulic Pump
  • Lubrication Fittings on All Pivot Points
  • Subframe Length 230” IBT


  • Frame-Mounted Pylon (Requires 6” or 12” Additional CA depending on size of pylon base)
  • Color on Top of Deck & Side Rails (Steel)
  • Right Approach™ or Extreme Angle Option
  • SST® Option
  • Smooth Floor in lieu of Tread Plate (Steel)
  • Solid Tube Side Rails (Steel, N/C))
  • Steel Removable Tube Rails
  • Aluminum Removable Blade Rails
  • Wireless Winch Remote
  • Steel or Aluminum Tool Compartments
  • Work Lights (Rear, Pylon, or Winch Mounted)
  • Various Chain & Strap Assemblies
  • Combination Dock Stabilizer / Wheel Lift
  • Hydraulic Stabilizer w/ Extendable Pintle
  • Multiple Winch Options
  • 9-Spool Control Station Capable
  • Bed-Mounted Cab Protector
  • Galvanized Subframe
  • 6 Key Slot Package (Aluminum)
  • Additional Key Slots
  • Auto-Grip™ II Wheel Lift
  • Wood Floor*
  • PTO
  • Switch Panel
  • Emergency Lighting
  • 3-Way Pivot & Other Wheel Retainer Options
  • Slidewinder - Side-Mounted Winch
  • Air Shift Winch Clutch Release(s)
  • Load Rite Gen II® Option
  • Stabilizer Spades



Load Rating* 12,000 lbs.
Platform Length 20.5’, 21’, 21.5’, 22’
Platform Floorplate Thickness 3/16”
Platform Width (Outside) 102”
Platform Width (Inside)** 96.5” to 101”
Platform Mainbeam 6” I-Beam
Platform Crossmembers (Steel) 2” x 2” Cor-ten Tube
Deck Height Above Chassis Frame (Steel) 6.75”
Platform Crossmembers (Aluminum) 2 1/4”
Crossmember Spacing (Steel) 8” on Center
Crossmember Spacing (Aluminum) 4” on Center
Subframe Rails 5” x 3” x 5/16” H.S. Tube
Rear Pivot 1 Piece 1 1/2” Diameter
Winch (1st Layer) 8,000-lbs. Worm
Cable 3/8” x 50’
Bed Tilt Cylinders 3” Bore
Bed Extension Cylinder 3 1/2” x 120” Stroke
Wheel Lift Reach (Extended) 66”
Wheel Lift Rating (Extended) 4,000 lbs.
Tow Rating 10,000 lbs.
Deck Height Above Chassis Frame (Wood) 7.75”

Chassis Recommendations

GVWR 19,500 lbs. – 26,000 lbs.
Minimum Frame Length Behind Center of Rear Axle 36”
Minimum Frame Height 33”
Maximum Frame Height 38”
Wheel & Tire Size* 255/70R 22.5"

Cab to Axle (C.A.) Requirements

Carrier Deck Length Clear C.A. Minimum Frame RBM
20.5’ 132” 600,000 in/lbs.
21’ 138” 600,000 in/lbs.
21.5‘ 144” 600,000 in/lbs.
22’ 150” 600,000 in/lbs.


Fuel tanks must be under the cab. Fuel tanks can extend up to 6 inches behind the cab only in combination with a frame-mounted pylon. Fuel fill must not behind the cab. The preferred location for the battery box is under the passenger seat or under the cab, battery boxes in other locations may require relocation.

* A minimum of 49" between the inside of the rear tires is required.

‡ The outside frame rails of the chassis extending behind the cab must be free of fuel tanks, air tanks, exhaust stacks, etc. The LCG™ carrier is not compatible with chassis that have inboard mid-ship fuel tanks such as the Ford 550 and Dodge 5500.

Air-bag rear suspensions are recommended for the lowest possible load angle but the LCG™ carrier can be mounted on some chassis with leaf spring suspensions.  Most chassis components behind the cab outside the frame must be at least 2 inches below the top of the truck frame to clear the bed slide rails.