Head to head
Ifor Williams HB506 vs Ifor Williams P5
The Ifor Williams P5 is 779kg lighter empty. The Ifor Williams HB506 is rated 2.1 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB506 weighs 779kg more empty.
- Gross weight: the Ifor Williams HB506 is rated 2.1 tonnes heavier gross.
Specifications side by side
| Ifor Williams HB506 | Ifor Williams P5 | |
|---|---|---|
| Gross weight | 2,600kg | 500kg |
| Unladen weight | 920kg | 141kg |
| Brakes | Braked | Unbraked |
| Internal length | 3.16m | - |
| Internal width | 1.67m | - |
| Payload | - | 359kg |
| Internal bed | - | 1.53m x 1.02m |
Sources: Ifor Williams HB506, Ifor Williams P5. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the HB506 if...
- you want one that is rated 2.1 tonnes 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
Buy or hire the P5 if...
- you want one that is 779kg lighter empty
A light general-purpose trailer for domestic buyers moving garden waste, small loads or a mower, chosen for its low unladen weight so it can be towed by almost any car.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Common questions
What is the difference between the Ifor Williams HB506 and the Ifor Williams P5?
The Ifor Williams P5 is 779kg lighter empty. The Ifor Williams HB506 is rated 2.1 tonnes heavier gross. The Ifor Williams HB506 is a two-horse trailer, twin axle; the Ifor Williams P5 is a the smallest unbraked domestic trailer Ifor Williams makes.
Which is lighter, the Ifor Williams HB506 or the Ifor Williams P5?
The Ifor Williams P5. It is 779kg lighter empty than the Ifor Williams HB506.
Can I tow the Ifor Williams HB506 or the Ifor Williams P5 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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