Head to head
Ifor Williams GD105 vs Ifor Williams TT3621
The Ifor Williams GD105 is 405kg lighter empty. The Ifor Williams TT3621 is rated 800kg heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams TT3621 weighs 405kg more empty.
- Gross weight: the Ifor Williams TT3621 is rated 800kg heavier gross.
Specifications side by side
| Ifor Williams GD105 | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 2,700kg | 3500kg |
| Unladen weight | 585kg | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Internal bed | 3.11m x 1.58m (10ft 2in x 5ft 2in) | - |
| Brakes | Braked | - |
| Payload | - | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Internal length | - | 3.62m / 11'9" |
| Internal width | - | 1.95m / 6'5" |
Sources: Ifor Williams GD105, Ifor Williams TT3621. 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 405kg 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 TT3621 if...
- you want one that is rated 800kg heavier gross
The largest Ifor Williams tipper. A 3.6m by 1.95m body is chosen for bulky, lighter loads - green waste, clearance and bark - where volume runs out before weight does, and it is a staple of plant and tool hire fleets. Formerly sold as the TT126.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams GD105 and the Ifor Williams TT3621?
The Ifor Williams GD105 is 405kg lighter empty. The Ifor Williams TT3621 is rated 800kg heavier gross. The Ifor Williams GD105 is a general duty box trailer, twin axle, longer bed; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.
Which is lighter, the Ifor Williams GD105 or the Ifor Williams TT3621?
The Ifor Williams GD105. It is 405kg lighter empty than the Ifor Williams TT3621.
Can I tow the Ifor Williams GD105 or the Ifor Williams TT3621 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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