Head to head
Ifor Williams LM146 vs Lider 39920
The Ifor Williams LM146 is rated 2,750kg heavier gross. The Lider 39920 is 365kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams LM146 is rated 2,750kg heavier gross.
- Unladen weight: the Ifor Williams LM146 weighs 365kg more empty.
Specifications side by side
| Ifor Williams LM146 | Lider 39920 | |
|---|---|---|
| Gross weight | 3500kg | 750kg |
| Unladen weight | 735kg | 370kg |
| 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 | - |
| Internal length | - | 230cm |
| Internal width | - | 135cm |
| Internal height | - | 157cm |
| Axles | - | 1 |
| Brakes | - | Unbraked |
Sources: Ifor Williams LM146, Lider 39920. 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 rated 2,750kg 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 39920 if...
- you want one that is 365kg lighter empty
The smallest box van in the range, for buyers who want lockable, weatherproof storage on the move without moving up to a braked twin-axle trailer.
Listed by
- Lider Trailers - Accrington, Blackburn
Common questions
What is the difference between the Ifor Williams LM146 and the Lider 39920?
The Ifor Williams LM146 is rated 2,750kg heavier gross. The Lider 39920 is 365kg lighter empty. The Ifor Williams LM146 is a a twin-axle flatbed goods trailer in the heavier-duty LM range.; the Lider 39920 is a an unbraked single-axle enclosed box van trailer rated at 750kg gross weight..
Which is lighter, the Ifor Williams LM146 or the Lider 39920?
The Lider 39920. It is 365kg lighter empty than the Ifor Williams LM146.
Can I tow the Ifor Williams LM146 or the Lider 39920 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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