Head to head
Graham Edwards FB3512 vs Ifor Williams HB511
The Graham Edwards FB3512 is 300kg lighter empty and is rated 800kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB511 weighs 300kg more empty.
- Gross weight: the Graham Edwards FB3512 is rated 800kg heavier gross.
Specifications side by side
| Graham Edwards FB3512 | Ifor Williams HB511 | |
|---|---|---|
| Gross weight | 3500KG | 2,700kg |
| Unladen weight | 700KG | 1,000kg |
| Length | 12' | - |
| Width | 6'6" | - |
| Axles | TANDEM | - |
| Internal length | - | 3.52m |
| Internal width | - | 1.79m |
| Brakes | - | Braked |
Sources: Graham Edwards FB3512, Ifor Williams HB511. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the FB3512 if...
- you want one that is 300kg lighter empty
- you want one that is rated 800kg heavier gross
A general purpose galvanized flatbed for contractors, landscapers and farms moving pallets, materials and machinery. Beavertail, tiltbed and side options are listed by the maker.
Full FB3512 specifications →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 Graham Edwards FB3512 and the Ifor Williams HB511?
The Graham Edwards FB3512 is 300kg lighter empty and is rated 800kg heavier gross. The Graham Edwards FB3512 is a 12 ft x 6 ft 6 in tandem axle 3.5 tonne flatbed trailer; the Ifor Williams HB511 is a two-horse trailer, twin axle, wider body.
Which is lighter, the Graham Edwards FB3512 or the Ifor Williams HB511?
The Graham Edwards FB3512. It is 300kg lighter empty than the Ifor Williams HB511.
Can I tow the Graham Edwards FB3512 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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