Head to head
Ifor Williams GD85 vs Stewart GX 15 FT
The Stewart GX 15 FT is rated 13.6 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Stewart GX 15 FT is rated 13.6 tonnes heavier gross.
Specifications side by side
| Ifor Williams GD85 | Stewart GX 15 FT | |
|---|---|---|
| Gross weight | 1,400kg single axle / 2,700kg twin axle | 15,000kg |
| Unladen weight | 395kg single axle / 485kg twin axle | - |
| Internal bed | 2.5m x 1.58m (8ft 2in x 5ft 2in) | - |
| Brakes | Braked, auto-reverse over-run | - |
| Length | - | 7,900-9,700mm (26-32ft) |
| Tare weight | - | 3,980kg |
| Axles | - | 125mm dia., 10-stud, 420x180mm brakes |
| Tyres | - | 385/65Rx22.5 standard, 435/50Rx19.5 flotation option |
Sources: Ifor Williams GD85, Stewart GX 15 FT. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GD85 if...
The entry point of the Ifor Williams general duty range and one of the most common working trailers in Britain. Smallholders, gardeners and tradespeople buy it for everyday hauling without needing a heavy tow vehicle, and the twin-axle version roughly doubles the payload for a modest gain in unladen weight.
Full GD85 specifications →Buy or hire the GX 15 FT if...
- you want one that is rated 13.6 tonnes heavier gross
A 15-tonne flat trailer from Scottish maker Stewart Trailers, built for farms and hire fleets moving bulky loads such as bales or machinery. The choice of standard or flotation tyres lets it be set up for road use or softer ground.
Listed by
- Rising Sun Trailer Hire - York
Common questions
What is the difference between the Ifor Williams GD85 and the Stewart GX 15 FT?
The Stewart GX 15 FT is rated 13.6 tonnes heavier gross. The Ifor Williams GD85 is a general duty box trailer, single or twin axle; the Stewart GX 15 FT is a twin-axle flat trailer for agricultural and general haulage use.
Can I tow the Ifor Williams GD85 or the Stewart GX 15 FT on a car licence?
Stewart GX 15 FT is rated over 3,500kg gross, which is beyond what a car can tow in the UK.
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