Head to head
Ifor Williams GD105 vs Ifor Williams HB511
The Ifor Williams GD105 is 415kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB511 weighs 415kg more empty.
Specifications side by side
| Ifor Williams GD105 | Ifor Williams HB511 | |
|---|---|---|
| Gross weight | 2,700kg | 2,700kg |
| Unladen weight | 585kg | 1,000kg |
| Brakes | Braked | Braked |
| Internal bed | 3.11m x 1.58m (10ft 2in x 5ft 2in) | - |
| Internal length | - | 3.52m |
| Internal width | - | 1.79m |
Sources: Ifor Williams GD105, Ifor Williams HB511. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GD105 if...
- you want one that is 415kg lighter empty
The same market as the GD85 with about 60cm more bed length, which is the difference between fitting a load and not. Landscapers and anyone moving long materials or a quad choose it for the length rather than the payload, which is unchanged.
Listed by
- Blendworth Trailers - Rowland's Castle
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Buy or hire the HB511 if...
The wider step up from the HB506, for larger horses or owners who want more room in transit. The extra 12cm of internal width and 36cm of length cost 80kg unladen, which is worth checking against your tow vehicle before choosing it over the HB506.
Listed by
- Trek-Trailers Suffolk - Bury Saint Edmunds
- R M Trailer Centre - Middlesbrough, North Ormesby
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- Horse Trailer Sales - Robertsbridge, Staplecross
- Trek-Trailers Three Counties - Hereford
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams GD105 and the Ifor Williams HB511?
The Ifor Williams GD105 is 415kg lighter empty. The Ifor Williams GD105 is a general duty box trailer, twin axle, longer bed; the Ifor Williams HB511 is a two-horse trailer, twin axle, wider body.
Which is lighter, the Ifor Williams GD105 or the Ifor Williams HB511?
The Ifor Williams GD105. It is 415kg lighter empty than the Ifor Williams HB511.
Can I tow the Ifor Williams GD105 or the Ifor Williams HB511 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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