Head to head
Ifor Williams LM146 vs Richardson Trailers Supreme Treble
The Ifor Williams LM146 is 525kg lighter empty and is rated 800kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Richardson Trailers Supreme Treble weighs 525kg more empty.
- Gross weight: the Ifor Williams LM146 is rated 800kg heavier gross.
Specifications side by side
| Ifor Williams LM146 | Richardson Trailers Supreme Treble | |
|---|---|---|
| Gross weight | 3500kg | 2,700kg |
| Unladen weight | 735kg | 1,260kg |
| Overall length | 5.60m | - |
| Overall width | 2.10m | - |
| Bed | 4.23m / 13'9" ((internal) length); 1.98m / 6'5" ((internal) width) | - |
| Payload | 2765kg | - |
| Tyres | 195/60R12C | - |
| Capacity | - | 2 horses forward, 1 pony reversed |
| External dimensions | - | 5.40m long x 2.29m wide x 2.75m high |
| Internal dimensions | - | 3.54m long x 1.80m wide x 2.33m high |
Sources: Ifor Williams LM146, Richardson Trailers Supreme Treble. 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 525kg lighter empty
- you want one that is rated 800kg heavier gross
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 Supreme Treble if...
A three-berth Richardson trailer built for a household with two horses and a pony rather than a full string. The reversed pony bay keeps overall length down compared with three forward-facing berths, which suits smaller yards and tow vehicles.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
Common questions
What is the difference between the Ifor Williams LM146 and the Richardson Trailers Supreme Treble?
The Ifor Williams LM146 is 525kg lighter empty and is rated 800kg heavier gross. The Ifor Williams LM146 is a a twin-axle flatbed goods trailer in the heavier-duty LM range.; the Richardson Trailers Supreme Treble is a trailer for two horses and a pony, one forward one reversed.
Which is lighter, the Ifor Williams LM146 or the Richardson Trailers Supreme Treble?
The Ifor Williams LM146. It is 525kg lighter empty than the Richardson Trailers Supreme Treble.
Can I tow the Ifor Williams LM146 or the Richardson Trailers Supreme Treble on a car licence?
Yes, as far as the licence goes. Both are rated at or under 3,500kg gross, and a car (B) licence has covered towing up to 3,500kg since 16 December 2021. Your car still has to be rated to tow the loaded weight - check the handbook or the VIN plate.
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