Head to head
Ifor Williams LM146 vs Stewart GX16-21 L
The Ifor Williams LM146 is 4,765kg lighter empty.
Last reviewed 13 September 2026

Key differences
- Unladen weight: the Stewart GX16-21 L weighs 4,765kg more empty.
Specifications side by side
| Ifor Williams LM146 | Stewart GX16-21 L | |
|---|---|---|
| Unladen weight | 735kg | 5,500kg |
| Overall length | 5.60m | - |
| Overall width | 2.10m | - |
| Bed | 4.23m / 13'9" ((internal) length); 1.98m / 6'5" ((internal) width) | - |
| Gross weight | 3500kg | - |
| Payload | 2765kg | - |
| Tyres | 195/60R12C | - |
| Carrying capacity | - | 16,000kg |
| Cubic capacity | - | grain 21m3, silage 37m3 |
| Body | - | 6700 x 2450 x 1370mm |
Sources: Ifor Williams LM146, Stewart GX16-21 L. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the LM146 if...
- you want one that is 4,765kg lighter empty
The LM146 is a general-purpose flatbed aimed at landscaping, construction and plumbing trades that need a long, wide load bed with a high payload on a single 3500kg-braked chassis. It is used where loads are bulky or awkwardly shaped rather than plant machinery, which typically goes on the ramped GX range instead.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- G-Tec Trailers - Thetford, Holme Hale
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Buy or hire the GX16-21 L if...
A large bulk trailer used to cart grain and root crops at harvest, with an easy sheet system to cover the load without climbing on top. Farmers hire extra units like this at harvest to move crop faster than their own trailers allow.
Listed by
- Rising Sun Trailer Hire - York
Common questions
What is the difference between the Ifor Williams LM146 and the Stewart GX16-21 L?
The Ifor Williams LM146 is 4,765kg lighter empty. The Ifor Williams LM146 is a a twin-axle flatbed goods trailer in the heavier-duty LM range.; the Stewart GX16-21 L is a bulk agricultural trailer with easy sheet cover.
Which is lighter, the Ifor Williams LM146 or the Stewart GX16-21 L?
The Ifor Williams LM146. It is 4,765kg lighter empty than the Stewart GX16-21 L.
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.
