Head to head
Humbaur HTK 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
| Humbaur HTK | Stewart GX 15 FT | |
|---|---|---|
| Gross weight | 3500kg | 15,000kg |
| Axles | Twin | 125mm dia., 10-stud, 420x180mm brakes |
| Payload | 2550kg | - |
| Internal bed | 3.14m x 1.75m | - |
| Brakes | Braked | - |
| Length | - | 7,900-9,700mm (26-32ft) |
| Tare weight | - | 3,980kg |
| Tyres | - | 385/65Rx22.5 standard, 435/50Rx19.5 flotation option |
Sources: Humbaur HTK, Stewart GX 15 FT. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the HTK if...
A heavy-duty three-way tipper for builders' merchants and groundworkers who need to tip to either side as well as the rear. The wide model line (2000kg to 3500kg gross) lets buyers pick a size without moving to a different range.
Listed by
- Trek-Trailers Three Counties - Hereford
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Trek-Trailers Suffolk - Bury Saint Edmunds
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 Humbaur HTK and the Stewart GX 15 FT?
The Stewart GX 15 FT is rated 11.5 tonnes heavier gross. The Humbaur HTK is a a tandem-axle three-way tipping trailer for construction and agricultural use; the Stewart GX 15 FT is a twin-axle flat trailer for agricultural and general haulage use.
Can I tow the Humbaur HTK 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.
GetBrent is an independent directory and is not a dealer for, nor affiliated with, either manufacturer. Model and brand names are the trademarks of their owners.