Head to head
Bockmann Grand Master SR vs Ifor Williams LM146
The Ifor Williams LM146 carries 1,303kg more and is rated 800kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Payload: the Ifor Williams LM146 carries 1,303kg more.
- Gross weight: the Ifor Williams LM146 is rated 800kg heavier gross.
Specifications side by side
| Bockmann Grand Master SR | Ifor Williams LM146 | |
|---|---|---|
| Gross weight | 2700kg | 3500kg |
| Payload | 1462kg | 2765kg |
| Internal length | 3900mm | - |
| Internal width | 1750mm | - |
| Internal height | 2300mm | - |
| Overall length | - | 5.60m |
| Overall width | - | 2.10m |
| Bed | - | 4.23m / 13'9" ((internal) length); 1.98m / 6'5" ((internal) width) |
| Unladen weight | - | 735kg |
| Tyres | - | 195/60R12C |
Sources: Bockmann Grand Master SR, Ifor Williams LM146. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Grand Master SR if...
The top trim of the Master line, with a walk-in tack room and centre-post partition for owners who want more storage and easier loading than the basic Master. Suits liveries and competition riders travelling one or two larger horses.
Listed by
- Böckmann UK Trailers & Horseboxes - Cinderford, Littledean
Buy or hire the LM146 if...
- you want one that carries 1,303kg more
- 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
Common questions
What is the difference between the Bockmann Grand Master SR and the Ifor Williams LM146?
The Ifor Williams LM146 carries 1,303kg more and is rated 800kg heavier gross. The Bockmann Grand Master SR is a larger polyester 2-horse trailer with walk-in tack room; the Ifor Williams LM146 is a a twin-axle flatbed goods trailer in the heavier-duty LM range..
Which carries more, the Bockmann Grand Master SR or the Ifor Williams LM146?
The Ifor Williams LM146, by 1,303kg.
Can I tow the Bockmann Grand Master SR or the Ifor Williams LM146 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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