Head to head
Bockmann Master vs Ifor Williams HB511
The Ifor Williams HB511 is rated 300kg heavier gross and is 14cm wider inside. The Bockmann Master is 4cm longer inside.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams HB511 is rated 300kg heavier gross.
- Internal width: the Ifor Williams HB511 is 14cm wider inside.
- Internal length: the Bockmann Master is 4cm longer inside.
Specifications side by side
| Bockmann Master | Ifor Williams HB511 | |
|---|---|---|
| Gross weight | 2400kg | 2,700kg |
| Internal length | 3560mm | 3.52m |
| Internal width | 1650mm | 1.79m |
| Payload | 1316kg | - |
| Internal height | 2350mm | - |
| Unladen weight | - | 1,000kg |
| Brakes | - | Braked |
Sources: Bockmann Master, Ifor Williams HB511. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Master if...
- you want one that is 4cm longer inside
The entry point into Bockmann's polyester-bodied trailer range, aimed at owners of one or two horses who want a simple, low-maintenance trailer rather than an aluminium premium model. It competes on price against other basic 2-horse trailers.
Listed by
- Böckmann UK Trailers & Horseboxes - Cinderford, Littledean
Buy or hire the HB511 if...
- you want one that is rated 300kg heavier gross
- you want one that is 14cm wider inside
The wider step up from the HB506, for larger horses or owners who want more room in transit. The extra 12cm of internal width and 36cm of length cost 80kg unladen, which is worth checking against your tow vehicle before choosing it over the HB506.
Listed by
- Trek-Trailers Lincolnshire - Doncaster, Belton
- Trek-Trailers Suffolk - Bury Saint Edmunds
- R M Trailer Centre - Middlesbrough, North Ormesby
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Horse Trailer Sales - Robertsbridge, Staplecross
- Trek-Trailers Three Counties - Hereford
Common questions
What is the difference between the Bockmann Master and the Ifor Williams HB511?
The Ifor Williams HB511 is rated 300kg heavier gross and is 14cm wider inside. The Bockmann Master is 4cm longer inside. The Bockmann Master is a polyester-bodied 2-horse trailer with tack room; the Ifor Williams HB511 is a two-horse trailer, twin axle, wider body.
Can I tow the Bockmann Master or the Ifor Williams HB511 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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