Head to head
Ifor Williams GH Plant with DigaDoc vs Ifor Williams HB511
The Ifor Williams GH Plant with DigaDoc is 391kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB511 weighs 391kg more empty.
Specifications side by side
| Ifor Williams GH Plant with DigaDoc | Ifor Williams HB511 | |
|---|---|---|
| Gross weight | 2700kg | 2,700kg |
| Unladen weight | 609kg | 1,000kg |
| Internal bed | 2.79m x 1.31m | - |
| Internal length | - | 3.52m |
| Internal width | - | 1.79m |
| Brakes | - | Braked |
Sources: Ifor Williams GH Plant with DigaDoc, Ifor Williams HB511. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the GH Plant with DigaDoc if...
- you want one that is 391kg lighter empty
Bought by plant hire and groundworks firms that need to prove what left the yard and where it went, since DigaDoc records load movements electronically on top of the standard GH plant trailer chassis. It is the same GH94 base trailer as the plain GH94, with the tracking hardware added.
Listed by
- 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 Lincolnshire - Doncaster, Belton
- 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
Common questions
What is the difference between the Ifor Williams GH Plant with DigaDoc and the Ifor Williams HB511?
The Ifor Williams GH Plant with DigaDoc is 391kg lighter empty. The Ifor Williams GH Plant with DigaDoc is a a plant trailer fitted with the manufacturer's DigaDoc load-tracking system; the Ifor Williams HB511 is a two-horse trailer, twin axle, wider body.
Which is lighter, the Ifor Williams GH Plant with DigaDoc or the Ifor Williams HB511?
The Ifor Williams GH Plant with DigaDoc. It is 391kg lighter empty than the Ifor Williams HB511.
Can I tow the Ifor Williams GH Plant with DigaDoc 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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