Head to head
Ifor Williams CT166 vs Ifor Williams GH Plant with DigaDoc
The Ifor Williams CT166 has a bed 2.08m (7ft) longer and is rated 800kg heavier gross. The Ifor Williams GH Plant with DigaDoc is 276kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Internal bed: the Ifor Williams CT166 has a bed 2.08m (7ft) longer.
- Unladen weight: the Ifor Williams CT166 weighs 276kg more empty.
- Gross weight: the Ifor Williams CT166 is rated 800kg heavier gross.
Specifications side by side
| Ifor Williams CT166 | Ifor Williams GH Plant with DigaDoc | |
|---|---|---|
| Gross weight | 3500kg | 2700kg |
| Unladen weight | 885kg | 609kg |
| Internal bed | 4.87m x 1.90m | 2.79m x 1.31m |
| Payload | 2615kg | - |
Sources: Ifor Williams CT166, Ifor Williams GH Plant with DigaDoc. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the CT166 if...
- you want one that has a bed 2.08m (7ft) longer
- you want one that is rated 800kg heavier gross
Bought by garages, recovery operators and plant hire firms who load low vehicles or compact machinery by tilting the deck to ground level instead of driving up loading ramps. The narrower CT166 bed suits standard cars and single machines.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
Buy or hire the GH Plant with DigaDoc if...
- you want one that is 276kg 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
Common questions
What is the difference between the Ifor Williams CT166 and the Ifor Williams GH Plant with DigaDoc?
The Ifor Williams CT166 has a bed 2.08m (7ft) longer and is rated 800kg heavier gross. The Ifor Williams GH Plant with DigaDoc is 276kg lighter empty. The Ifor Williams CT166 is a a tilt-bed car and machinery transporter trailer; the Ifor Williams GH Plant with DigaDoc is a a plant trailer fitted with the manufacturer's DigaDoc load-tracking system.
Which is lighter, the Ifor Williams CT166 or the Ifor Williams GH Plant with DigaDoc?
The Ifor Williams GH Plant with DigaDoc. It is 276kg lighter empty than the Ifor Williams CT166.
Can I tow the Ifor Williams CT166 or the Ifor Williams GH Plant with DigaDoc 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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