Model against model
Bockmann Portax L K vs Ifor Williams HBX506
Two models people put on the same shortlist. Every figure below is sourced, and where one side has a specification the other does not publish, the row is left out rather than filled with a guess.
Last reviewed 13 September 2026
| Bockmann Portax L K | Ifor Williams HBX506 | |
|---|---|---|
| Gross weight | 2500kg | 2600kg |
| Payload | 1318kg | 1735kg |
| Internal length | 4125mm | 3.26m |
| Internal width | 1750mm | 1.67m |
Only specifications published for both models appear here. Full Bockmann Portax L K figures and full Ifor Williams HBX506 figures.
Choose the Portax L K if...
The longer 'L' version of the Portax K, giving taller or bigger horses more room while keeping the front-exit layout. It appeals to owners of warmbloods or cobs who found the standard Portax K too tight.
Full specifications →Choose the HBX506 if...
A mid-size horsebox for owners moving one or two horses who want the updated HBX styling and features rather than the standard HB range trailer.
Dealer wrote the range name 'HBX'; the range also includes HBX403 and HBX511. Figures shown are for the mid-size HBX506.
Full specifications →Common questions
What is the difference between the Bockmann Portax L K and the Ifor Williams HBX506?
Bockmann Portax L K: The longer 'L' version of the Portax K, giving taller or bigger horses more room while keeping the front-exit layout. It appeals to owners of warmbloods or cobs who found the standard Portax K too tight. Ifor Williams HBX506: A mid-size horsebox for owners moving one or two horses who want the updated HBX styling and features rather than the standard HB range trailer.
Are these figures reliable?
Every figure on this page was read off a manufacturer or established dealer page and is linked to its source. Anything we could not verify is left out rather than estimated. Specifications change by model year and configuration, so confirm with the supplier before relying on them.
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.