Head to head
Humbaur Steely vs Ifor Williams HBX506
The Ifor Williams HBX506 is rated 1,850kg heavier gross and carries 1,105kg more.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams HBX506 is rated 1,850kg heavier gross.
- Payload: the Ifor Williams HBX506 carries 1,105kg more.
Specifications side by side
| Humbaur Steely | Ifor Williams HBX506 | |
|---|---|---|
| Gross weight | 750kg | 2600kg |
| Payload | 630kg | 1735kg |
| Inner length | 2050mm | - |
| Inner width | 1095mm | - |
| Unladen weight | - | 865kg |
| Internal length | - | 3.26m |
| Internal width | - | 1.67m |
Sources: Humbaur Steely, Ifor Williams HBX506. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Steely if...
The Steely is Humbaur's budget single-axle trailer, built with a hot-dip galvanised chassis as what the manufacturer describes as an entry point into trailer ownership. It suits light garden, construction-site and hobby loads rather than heavier trade use.
Full Steely specifications →Buy or hire the HBX506 if...
- you want one that is rated 1,850kg heavier gross
- you want one that carries 1,105kg more
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.
Listed by
- R M Trailer Centre - Middlesbrough, North Ormesby
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Humbaur Steely and the Ifor Williams HBX506?
The Ifor Williams HBX506 is rated 1,850kg heavier gross and carries 1,105kg more. The Humbaur Steely is a a small, unbraked single-axle flatbed trailer aimed at first-time buyers and light garden/site use.; the Ifor Williams HBX506 is a a double horsebox trailer from Ifor Williams' HBX range.
Which carries more, the Humbaur Steely or the Ifor Williams HBX506?
The Ifor Williams HBX506, by 1,105kg.
Can I tow the Humbaur Steely or the Ifor Williams HBX506 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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