Head to head
Bockmann Grand Master SR vs Ifor Williams HB506
The Bockmann Grand Master SR is 74cm (2.5ft) longer inside and is 8cm wider inside.
Last reviewed 13 September 2026
Key differences
- Internal length: the Bockmann Grand Master SR is 74cm (2.5ft) longer inside.
- Internal width: the Bockmann Grand Master SR is 8cm wider inside.
- Gross weight: the Bockmann Grand Master SR is rated 100kg heavier gross.
Specifications side by side
| Bockmann Grand Master SR | Ifor Williams HB506 | |
|---|---|---|
| Gross weight | 2700kg | 2,600kg |
| Internal length | 3900mm | 3.16m |
| Internal width | 1750mm | 1.67m |
| Payload | 1462kg | - |
| Internal height | 2300mm | - |
| Unladen weight | - | 920kg |
| Brakes | - | Braked |
Sources: Bockmann Grand Master SR, Ifor Williams HB506. 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 is 74cm (2.5ft) longer inside
- you want one that is 8cm wider inside
- you want one that is rated 100kg heavier gross
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 HB506 if...
The mainstream two-horse trailer in Britain, used by private owners and small yards. Its comparatively low unladen weight for the class is the practical point: it widens the range of 4x4s and large SUVs that can legally and comfortably tow it.
Listed by
- R M Trailer Centre - Middlesbrough, North Ormesby
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- 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 HB506?
The Bockmann Grand Master SR is 74cm (2.5ft) longer inside and is 8cm wider inside. The Bockmann Grand Master SR is a larger polyester 2-horse trailer with walk-in tack room; the Ifor Williams HB506 is a two-horse trailer, twin axle.
Can I tow the Bockmann Grand Master SR or the Ifor Williams HB506 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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