Head to head
Ifor Williams LM85 vs Stewart GX 18-23 S
The Stewart GX 18-23 S is rated 16.5 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Stewart GX 18-23 S is rated 16.5 tonnes heavier gross.
Specifications side by side
| Ifor Williams LM85 | Stewart GX 18-23 S | |
|---|---|---|
| Gross weight | 3500kg | 20,000kg |
| Unladen weight | 525kg | - |
| Payload | 2975kg | - |
| Internal bed | 2.44m x 1.52m | - |
| Body size | - | 6,700 x 2,450 x 1,500mm |
| Cubic capacity | - | 23m3 grain, 39m3 silage |
| Tare weight | - | 5,900kg |
| Axles | - | 125mm dia., 10-stud, 420x180mm brakes |
Sources: Ifor Williams LM85, Stewart GX 18-23 S. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the LM85 if...
A compact flatbed for smallholders and tradespeople who need to move heavy but not bulky loads, such as pallets of blocks, and want maximum payload from the smallest bed in the range.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
- Lancaster trailer hire - ELY
- R M Trailer Centre - Middlesbrough, North Ormesby
Buy or hire the GX 18-23 S if...
- you want one that is rated 16.5 tonnes heavier gross
An 18-23 tonne tipping trailer built for grain and silage haulage, with an easy-sheet system so one person can cover a loaded trailer without climbing on top. Its monocoque steel body gives it the extra capacity over Stewart's standard flat trailers.
Listed by
- Rising Sun Trailer Hire - York
Common questions
What is the difference between the Ifor Williams LM85 and the Stewart GX 18-23 S?
The Stewart GX 18-23 S is rated 16.5 tonnes heavier gross. The Ifor Williams LM85 is a the shortest flatbed trailer in the LM range; the Stewart GX 18-23 S is a twin-axle tipping grain and silage trailer with an easy-sheet cover system.
Can I tow the Ifor Williams LM85 or the Stewart GX 18-23 S on a car licence?
Stewart GX 18-23 S is rated over 3,500kg gross, which is beyond what a car can tow in the UK.
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