Head to head
Brian James Digger Plant 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
| Brian James Digger Plant | Stewart GX 15 FT | |
|---|---|---|
| Gross weight | 3500kg | 15,000kg |
| Axles | Twin (12in wheels) | 125mm dia., 10-stud, 420x180mm brakes |
| Internal bed | 3.2m x 1.7m | - |
| Length | - | 7,900-9,700mm (26-32ft) |
| Tare weight | - | 3,980kg |
| Tyres | - | 385/65Rx22.5 standard, 435/50Rx19.5 flotation option |
Sources: Brian James Digger Plant, Stewart GX 15 FT. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Digger Plant if...
Used by groundworkers and plant hire firms to move a mini digger between sites behind a pickup or 4x4. Its bed size and gross weight target machines around the 3 to 3.5 tonne mark rather than heavier plant.
Listed by
- Formula Trailers,, Brian-James Trailers Main Dealer in the SW UK - Wellington, Poole
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 Brian James Digger Plant and the Stewart GX 15 FT?
The Stewart GX 15 FT is rated 11.5 tonnes heavier gross. The Brian James Digger Plant is a a twin-axle plant trailer built for carrying a mini excavator or similar machine; the Stewart GX 15 FT is a twin-axle flat trailer for agricultural and general haulage use.
Can I tow the Brian James Digger Plant 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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