Steel Grain Trailers

Designed by Grain Harvesters

Made by and for the working grain harvester, Demco steel hopper bottom trailers are built tough for everyday use, rain or shine.

Designed with ease of use and rugged durability in mind, our steel hopper bottom trailers are constructed with heavy, 14-gauge steel to minimize twisting and to meet the daily demands of our customers. Many will appreciate our standard 66" side walls, which provides a full view into the hopper from the combine cab, while our unique and exclusive vertical rib wall construction helps you save on gas by reducing air drag and preventing unsightly rock chips.

As a leading manufacturer of equipment for today's farms, shops, shipping and leisure needs, Demco has stood behind all of our products for over 70 years.

Trailer LengthNumber of HoppersNew 22,500# AxlesCubic FeetLeveled Bushels (Approximate)Heaped Bushels (Approximate)King Pin to Landing Leg ClearanceKing Pin SettingFloor SlopeWeight Air-rideWeight Spring ride

Design & Performance Characteristics

  • 66” Side walls for full view into hopper from combine cab
  • Inverted horizontal ribs for easier pulling and less rock chipping
  • 3” x 6” x 1/4” Heavy wall tubular steel to minimize twisting
  • Hopper and wall skins constructed of 14 ga steel
  • 2” x 2” Wall upright stabilizers constructed of 11 ga steel
  • 3” x 4” Top rail constructed of 11 ga steel
  • 30” x 20” Hopper opening
  • 25” Hopper clearance
  • 98” Overall width
  • 9.6" Height-ground to top rail
  • 35 degree hopper slope


  • 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
  • Holland Atlas 55 2-speed drop leg landing gear (24’, 28’, & 30’ trailers)
  • Holland Atlas 55 2-speed landing gear (34’ – 42’ trailers)
  • Full center dividers on trailers 30’ and up
  • Rubber mounted LED lighting & sealed wiring system, 7 way receptacle by Truck-Lite™
  • Color coded brake lines
  • Diamond Vogel polyurethane primer and paint (standard color white)
  • Undercoated with XRC2001 synthetic rubber coating
  • Aluminum ladders (front & rear)
  • Ladder rungs on inside of trailer
  • Hopper sight windows
  • Shur-Co manual roll tarp (Black, White, Red, Blue)
  • Easy off tarp stops
  • Roll tube deflectors
  • Demco vinyl trailer graphics
  • Anti-sail Mudflaps (Demco logo)
  • D.O.T. approved conspicuity tape
  • Manifest Holder


  • Stainless Steel Corners
  • Air Ride Suspension (Not Available on 24')
  • Air Ride Manual Dump Valve with Scale
  • 2-Speed or Electric Hopper
  • Side Discharge Hopper Chute
  • Pintle Hook
  • Steel & Polished Aluminum Rims or All Polished Aluminum Rims
  • 11R 22.5 LRG Import Radial Tires or Domestic Radial Tires
  • 11R 24.5 LRG Import Radial Tires or Domestic Radial Tires
  • Heavy Duty Jack Brace
  • Black, Red, Navy Blue, Gray, or Custom Paint Color
  • Shur-Co Electric Roll Tarp with Remote
  • Custom Tarp & Graphic Color
  • Tarp Saver Cord (Set of 2)
  • Double Ridge Strap
  • Tarp Cable Return: Front, Rear, or Front & Rear
  • Vented Hopper
  • Aluminum Platforms: Front, Rear, or Front & Rear
  • Front Mudflaps
  • Hopper Work Lights

From your friends at Demco

Here at Demco, we love building tools that helps keep America going. From agriculture and construction products to towing and trailer components, we work hard so you can keep working. All of our products, including our hopper bottom trailers, are durable, reliable and built to last, and with over 70 years in business, our many happy customers have come to learn that Demco means quality, and that's something you can rely upon.

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