Step or Drop Frame Trailer

The kingpin of the trailer is attached to the underside of the step frame trailer’s upper deck, enabling the trailer to be coupled to the tractor unit’s fifth wheel. The upper deck is built sufficiently high to accommodate the tractor unit. The lower deck of the drop frame trailer is built at a lower level than the upper deck, enabling high loads to be moved without the total height of the loaded trailer exceeding the legal limits for normal road transport.

The lower deck heights of drop frame trailers vary between manufacturers and models, 0.95m is common.

Drop frame trailers are distinguished from low loaders by having a single lower deck height. In contrast, low loaders have three deck heights: the upper deck above the kingpin, the lower load-carrying deck, and a third deck height above the wheels. See low loader trailers.

We stock 3 axle stepframe platform trailers from Dennison, Montracon, and SDC.

Specification includes:

• 22 tonne payload. No special types.
• 6m length closed, 9m in the lower deck.
• 95m deck height in the lower deck, 1.5m in the upper deck.
• 6m pin.
• Keruwing hard wood timber deck floor.
• 235 75 R 17.5 tyres in double formation. A few trailers run on 235 75 R 19.5 tyres.
• Rope hooks and/or lashing (ferry) rings.
• All trailers have fixed 1m headboards.
• Not supplied with ramps.
• Suitable for transporting straw and sometimes called a straw trailer.

We buy, sell, and rent extendable and non-extending flat, low loader, step frame and urban trailers plus plant, machinery, tractor, wing, and truss carriers. The majority of the 1000 plus modern trailers on our fleet are made by Broshuis, Dennison, Montracon, and SDC. We also offer repairs, re-furbishment, HGV / LGV / PCV testing, spares, service, test preparation, tachograph calibration and brake analysis. These services are suitable for most trucks, trailers, buses, tractor units, lorries, and PSVs.