Head to head
Humbaur Steely vs Ifor Williams HB506
The Ifor Williams HB506 is rated 1,850kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams HB506 is rated 1,850kg heavier gross.
Specifications side by side
| Humbaur Steely | Ifor Williams HB506 | |
|---|---|---|
| Gross weight | 750kg | 2,600kg |
| Payload | 630kg | - |
| Inner length | 2050mm | - |
| Inner width | 1095mm | - |
| Unladen weight | - | 920kg |
| Internal length | - | 3.16m |
| Internal width | - | 1.67m |
| Brakes | - | Braked |
Sources: Humbaur Steely, Ifor Williams HB506. 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 HB506 if...
- you want one that is rated 1,850kg heavier gross
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 Humbaur Steely and the Ifor Williams HB506?
The Ifor Williams HB506 is rated 1,850kg heavier gross. 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 HB506 is a two-horse trailer, twin axle.
Can I tow the Humbaur Steely 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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