

Flat-Top & Tipper TrailersModel: 43900
Flat Top Trailer (Model 43900)
Excludes delivery and optional extras. Delivery is quoted separately; see our shipping policy and return policy.
In stock, ready to order
10×6 heavy-duty tandem-axle flat top trailer with drop sides, RHS chassis and drawbar, slipper suspension and checker-plate floor.
- Model
- 43900
- SKU
- DT-43900
- Brand
- Dori Trailers
- Condition
- new
Product overview
Model 43900 is the practical 10x6 heavy-duty flat-top: a tandem-axle deck with 12 inch smooth drop sides, a checker-plate floor and an RHS chassis and drawbar - the specification that tells you the frame is box section rather than rolled channel, which is what a trailer flexes on when it is loaded and towed over bad roads.
Drop sides on all four sides make this the most versatile configuration in the flat-top range. Load with the sides up for loose material, drop the tailgate to carry long goods flat, or lift the sides off to use the trailer as a pure deck for pallets, machinery and sheet material. A tie rail runs around the trailer so straps, tarpaulins and rope always have a proper anchor.
The floor is checker plate throughout - not timber, not smooth sheet - so shovelling rubble, sand or stone out of it does not cut or split the surface, and the trailer keeps its resale value instead of rotting out from the deck down. The body sits on slipper suspension, which is a simple, robust layout that carries heavy loads well and is easy to service in the field.
The trailer runs on brand new Sunraysia rims with brand new light-truck tyres, and lighting is 12 V LED. It is finished and assembled to commercial standards with safety chains, mudguards and reflectors, and it is ready to work the day it is delivered.
Typical buyers are builders and material merchants, farmers, plant hirers, and trade operations that need one trailer that can be a tipper-style bulk hauler on Monday and a flat deck for a generator or a mini excavator on Tuesday.
Key features
- 10x6 heavy-duty tandem flat top
- 12 inch smooth drop sides
- RHS chassis and box-section drawbar
- Checker-plate floor
- Slipper suspension
- Tie rails around the trailer
- Sides removable for flat-deck loads
- Brand new Sunraysia rims and tyres
- 12 V LED lighting
- Drop-down tailgate for long loads
Specifications
The full specification sheet for Flat Top Trailer (Model 43900) (Model 43900). Builds are made to order, so dimensions, equipment positions and finishes can be adjusted to your menu, load or site before delivery.
1. General
- Model
- 43900
- Type
- 10×6 heavy-duty tandem axle flat top trailer with drop sides
- Deck
- 10 ft x 6 ft deck with drop sides
- Use
- Mixed bulk, flat-deck and long-load transport
- Finish
- Painted commercial finish
2. Chassis & body
- Chassis
- RHS chassis
- Drawbar
- RHS drawbar (box section, not channel)
- Floor
- Checker plate
- Sides
- 12 inch smooth drop sides
- Rails
- Tie rails fitted
- Suspension
- Slipper suspension
3. Running gear
- Axles
- Tandem axle set
- Suspension
- Slipper suspension
- Wheels
- Brand new Sunraysia rims
- Tyres
- Brand new light truck tyres
- Coating
- Rims and tyres supplied as a matched set
4. Electrics & safety
- Lights
- 12 V LED lights
- Plug
- 7-pin flat plug
- Reflectors
- Fitted
- Safety
- Safety chains with D-shackles
5. Loading features
- DropSides
- Drops on all sides for flexible loading
- Flat deck
- Sides removable for pallets and machinery
- Tailgate
- Drop-down for long loads
- Tie rails
- Around the trailer
6. Compliance & delivery
- Registration
- Sold unregistered; registration quoted separately
- Warranty
- 12-month structural warranty on chassis and bodywork
- Delivery
- Insured freight nationwide, quoted in writing
- LeadTime
- Available while stock lasts
Types & configurations
Flat Top Trailer (Model 43900) is built to order in the configurations below. Choose the layout that matches your equipment, then we build it that way rather than shipping a standard unit you have to adapt.
Builder's materials trailer
Drop sides for bulk loads, flat deck for sheets, frames and pallets.
Farm flat-top
Slipper suspension and RHS chassis for rough farm roads under load.
Plant & machinery carrier
Deck configuration for skid units, pumps, generators and attachments.
General commerce hauler
One trailer that covers bulk, long and palletised loads.
Available upgrades
Every item below can be fitted during the build or added to a unit you already own. Upgrades are quoted separately to the listed price; ask us for a written quote before you order.
- Braked axle conversion with breakaway unit
- Ramp set for wheeled equipment
- Cage sides or mesh extension
- Lockable drawbar toolbox
- Extra spare wheel and carrier
- Canvas load cover with rope rail
- Branding and reflective markings

