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Ifor Williams CT177 vs Stewart GX 15 FT

The Stewart GX 15 FT is rated 11.5 tonnes heavier gross.

Last reviewed 13 September 2026

Ifor Williams CT177
Ifor Williams CT177 - image: Norfolk Trailers
GX 15 FT
Stewart GX 15 FT

Key differences

Specifications side by side

Ifor Williams CT177Stewart GX 15 FT
Gross weight3500kg15,000kg
Overall length6.70m / 22'0"-
Bed5.00m / 16'4" ((internal) length); 1.91m / 6'3" ((internal) width)-
Unladen weight805kg-
Payloadapprox. 2695kg-
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 CT177, Stewart GX 15 FT. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the CT177 if...

The CT177 is built to be wide enough for most light commercial vehicles while remaining narrow enough for smaller cars, making it a common choice for vehicle recovery firms and the motor trade. Its long bed and 3500kg GVW keep it within standard car-licence towing limits for a single vehicle plus ramps.

Listed by

Full CT177 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

Full GX 15 FT specifications →

Common questions

What is the difference between the Ifor Williams CT177 and the Stewart GX 15 FT?

The Stewart GX 15 FT is rated 11.5 tonnes heavier gross. The Ifor Williams CT177 is a a twin-axle car transporter trailer with a long, narrow bed for single-vehicle recovery and trade use.; the Stewart GX 15 FT is a twin-axle flat trailer for agricultural and general haulage use.

Can I tow the Ifor Williams CT177 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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