Head to head
Ifor Williams GX126 vs Stewart GX 15 FT
The Stewart GX 15 FT is rated 11.5 tonnes heavier gross.
Last reviewed 13 September 2026

Key differences
- Gross weight: the Stewart GX 15 FT is rated 11.5 tonnes heavier gross.
Specifications side by side
| Ifor Williams GX126 | Stewart GX 15 FT | |
|---|---|---|
| Gross weight | 3500kg | 15,000kg |
| Tyres | 155/70R12C | 385/65Rx22.5 standard, 435/50Rx19.5 flotation option |
| Overall length | 5.70m | - |
| Overall width | 2.30m | - |
| Internal length | 3.66m / 12'0" | - |
| Internal width | 1.84m / 6'0" | - |
| Unladen weight | 765kg (Skids); 795kg (Ramp) | - |
| Payload | 2735kg (Skids); 2705kg (Ramp) | - |
| Length | - | 7,900-9,700mm (26-32ft) |
| Tare weight | - | 3,980kg |
| Axles | - | 125mm dia., 10-stud, 420x180mm brakes |
Sources: Ifor Williams GX126, Stewart GX 15 FT. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GX126 if...
The GX126 is Ifor Williams' mainstream plant trailer for mini diggers, dumpers and similar machinery on a single-axle-per-side, 3500kg braked chassis. Hirers usually pick the Ramp version for self-loading and the Skids version where a separate loading ramp or forklift is already available.
Full GX126 specifications →Buy or hire the GX 15 FT if...
- you want one that is rated 11.5 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 GX126 and the Stewart GX 15 FT?
The Stewart GX 15 FT is rated 11.5 tonnes heavier gross. The Ifor Williams GX126 is a a twin-axle plant trailer available in Skids and Ramp variants for carrying machinery.; the Stewart GX 15 FT is a twin-axle flat trailer for agricultural and general haulage use.
Can I tow the Ifor Williams GX126 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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