Head to head
Ifor Williams CT136 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 CT136 | Stewart GX 15 FT | |
|---|---|---|
| Gross weight | 1,400kg single axle / 2,000kg twin axle / 2,600kg CT136HD | 15,000kg |
| Unladen weight | 400kg single axle / 495kg twin axle | - |
| Bed | 4.00m x 1.84m | - |
| 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 CT136, Stewart GX 15 FT. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the CT136 if...
The accessible end of car transport, for towing a road car, a track-day car or a small classic. Motorsport and classic-car owners tend toward the twin-axle and HD versions for the higher gross weight and the tie-down provision.
Full CT136 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 CT136 and the Stewart GX 15 FT?
The Stewart GX 15 FT is rated 13.6 tonnes heavier gross. The Ifor Williams CT136 is a flatbed car transporter, 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 CT136 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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