Head to head
Ifor Williams GD84 vs Ifor Williams HB506
The Ifor Williams GD84 is 470kg lighter empty and is rated 100kg heavier gross. The Ifor Williams HB506 is 42cm (1.5ft) wider inside and is 61cm (2ft) longer inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB506 weighs 470kg more empty.
- Internal width: the Ifor Williams HB506 is 42cm (1.5ft) wider inside.
- Internal length: the Ifor Williams HB506 is 61cm (2ft) longer inside.
- Gross weight: the Ifor Williams GD84 is rated 100kg heavier gross.
Specifications side by side
| Ifor Williams GD84 | Ifor Williams HB506 | |
|---|---|---|
| Gross weight | 2700kg | 2,600kg |
| Unladen weight | 450kg | 920kg |
| Internal length | 2.55m | 3.16m |
| Internal width | 1.25m | 1.67m |
| Payload | 2250kg | - |
| Axles | Twin | - |
| Brakes | - | Braked |
Sources: Ifor Williams GD84, Ifor Williams HB506. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GD84 if...
- you want one that is 470kg lighter empty
- you want one that is rated 100kg heavier gross
A everyday farm and smallholding trailer for moving loose loads, logs or small livestock behind a 4x4 or pickup, chosen over the single-axle GD84 when the extra payload of a twin-axle chassis is needed.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the HB506 if...
- you want one that is 42cm (1.5ft) wider inside
- you want one that is 61cm (2ft) longer inside
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 Ifor Williams GD84 and the Ifor Williams HB506?
The Ifor Williams GD84 is 470kg lighter empty and is rated 100kg heavier gross. The Ifor Williams HB506 is 42cm (1.5ft) wider inside and is 61cm (2ft) longer inside. The Ifor Williams GD84 is a a general-purpose dropside trailer; the Ifor Williams HB506 is a two-horse trailer, twin axle.
Which is lighter, the Ifor Williams GD84 or the Ifor Williams HB506?
The Ifor Williams GD84. It is 470kg lighter empty than the Ifor Williams HB506.
Can I tow the Ifor Williams GD84 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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