Head to head
Bockmann Grand Master SR vs Ifor Williams HB403
The Bockmann Grand Master SR carries 629kg more and is rated 1.1 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Payload: the Bockmann Grand Master SR carries 629kg more.
- Gross weight: the Bockmann Grand Master SR is rated 1.1 tonnes heavier gross.
- Internal width: the Bockmann Grand Master SR is 45cm (1.5ft) wider inside.
- Internal length: the Bockmann Grand Master SR is 82cm (2.5ft) longer inside.
Specifications side by side
| Bockmann Grand Master SR | Ifor Williams HB403 | |
|---|---|---|
| Gross weight | 2700kg | 1600kg |
| Payload | 1462kg | 833kg |
| Internal length | 3900mm | 3.08m |
| Internal width | 1750mm | 1.30m |
| Internal height | 2300mm | - |
| Unladen weight | - | 767kg |
Sources: Bockmann Grand Master SR, Ifor Williams HB403. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Grand Master SR if...
- you want one that carries 629kg more
- you want one that is rated 1.1 tonnes heavier gross
- you want one that is 45cm (1.5ft) wider inside
- you want one that is 82cm (2.5ft) longer inside
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 HB403 if...
The smallest trailer in the HB horsebox range, bought by owners of a single horse or a couple of ponies who want the lightest legal option that can still be towed by a mid-size car.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Bockmann Grand Master SR and the Ifor Williams HB403?
The Bockmann Grand Master SR carries 629kg more and is rated 1.1 tonnes heavier gross. The Bockmann Grand Master SR is a larger polyester 2-horse trailer with walk-in tack room; the Ifor Williams HB403 is a a compact single-horse or two-pony horsebox trailer.
Which carries more, the Bockmann Grand Master SR or the Ifor Williams HB403?
The Bockmann Grand Master SR, by 629kg.
Can I tow the Bockmann Grand Master SR or the Ifor Williams HB403 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.
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.