Tandem Axle Drop Deck Trailers + 5' Beaver Tail with Twin Ramps

The sloped, 5 foot ramp extension on our beaver tail drop deck trailers makes equipment and heavy loads easier to maneuver on and off the trailer. Ranging from 45 feet to 53 feet, each beaver tail trailer comes with twin ramps, with optional 3rd ramp, that will make loading heavy equipment and vehicles even easier and safer.

Model Number

Trailer DescriptionTare Weight (lbs)Closed Axle10:1 Spread AxleTriple Axle
DD40-540' Tandem Axle + 5' Beaver Tail with Twin Ramps11,980yesN/AN/A
DD43-543' Tandem Axle + 5' Beaver Tail with Twin Ramps12,420yesyesN/A
DD45-545' Tandem Axle + 5' Beaver Tail with Twin Ramps12,640yesyesN/A
DD48-548' Tandem Axle + 5' Beaver Tail with Twin Ramps12,880yesyesN/A
Main Beams
Designed with Camber - built in Spencer facility
Web1/4" high grade 100,000 yield steel
Flange3/8" x 5" high grade 100,000 yield steel
Cross Members
4" x 3.2# 80,000 yield Jr. I-beam on 16" centers
Side Rails
6" x 8.2# structural C channel
Brake Size
16.5" x 7"
Upper Deck Length
Lower Deck Height
Transition Drop from Upper to Lower Deck
Overall Width


  • 3-leaf heavy duty SAF Holland spring suspensions
  • 22.5K Arvin Meritor axles with Wabco ABS brakes (single axle) and 10 bolt hub piloted steel rims 68,000 lbs. GVW
  • Twin spring assist ramps
  • Kingpin setting of 24”
  • Holland Atlas 55 series with 2 speed landing gear
  • Rubber mounted LED lights
  • Sealed wiring system w/ 7-way receptacle – designed by Truck-Lite™ for Demco
  • Midship turn signals on all trailers
  • Color coded air lines
  • Steel hand sanded/Phosphate washed for superior paint adhesion
  • All exterior mating surfaces are caulked prior to paint
  • Diamond Vogel polyurethane primer and paint (black)
  • Stake pockets and pipe spooling at 9” intervals
  • Rub rail of 2” x 3/8” flat steel
  • 1-1/8” x 7” Apitong flooring
  • Winch track (driver side)
  • Anti-sail mud flaps (Demco logo)
  • D.O.T. approved conspicuity tape
  • Manifest holder


  • Air Ride 2 Axle Manual Dump Valve
  • Air Ride 2 Axle Electric Dump Valve or 1-2 Axle Electric Dump Valve
  • 3rd spring assist ramp
  • Kingpin setting of 18"
  • ABS Installed on 2nd Axle
  • Polished Aluminum Rims
  • 255/70R 22.5 LRH Import Radial Tires
  • 255/70R 22.5 LRH Domestic Radial Dunlap SP160 Tires
  • Sliding Winches
  • Aluminum Toolbox
  • Front Bulkhead (Removable)
  • Custom Paint Color (Red, Grey, White, Blue)

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