Head to head
Ifor Williams TT3621 vs Lider 38950
The Ifor Williams TT3621 is rated 1.5 tonnes heavier gross and is 40cm (1.5ft) wider inside. The Lider 38950 is 360kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Ifor Williams TT3621 is rated 1.5 tonnes heavier gross.
- Unladen weight: the Ifor Williams TT3621 weighs 360kg more empty.
- Internal width: the Ifor Williams TT3621 is 40cm (1.5ft) wider inside.
- Internal length: the Ifor Williams TT3621 is 62cm (2ft) longer inside.
Specifications side by side
| Ifor Williams TT3621 | Lider 38950 | |
|---|---|---|
| Gross weight | 3500kg | 2000kg |
| Unladen weight | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) | 630kg |
| Internal length | 3.62m / 11'9" | 300cm |
| Internal width | 1.95m / 6'5" | 155cm |
| Payload | 2510kg (195/60R12C) or 2500kg (185/70R13C) | - |
| Internal height | - | 177cm |
| Axles | - | 2 |
| Brakes | - | Braked |
Sources: Ifor Williams TT3621, Lider 38950. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the TT3621 if...
- you want one that is rated 1.5 tonnes heavier gross
- you want one that is 40cm (1.5ft) wider inside
- you want one that is 62cm (2ft) longer inside
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.
Full TT3621 specifications →Buy or hire the 38950 if...
- you want one that is 360kg lighter empty
A weatherproof enclosed trailer for market traders, couriers and event businesses who need to lock stock or equipment away overnight, with enough internal height to walk in upright.
Full 38950 specifications →Common questions
What is the difference between the Ifor Williams TT3621 and the Lider 38950?
The Ifor Williams TT3621 is rated 1.5 tonnes heavier gross and is 40cm (1.5ft) wider inside. The Lider 38950 is 360kg lighter empty. The Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping; the Lider 38950 is a a braked twin-axle enclosed box van trailer rated at 2000kg gross weight..
Which is lighter, the Ifor Williams TT3621 or the Lider 38950?
The Lider 38950. It is 360kg lighter empty than the Ifor Williams TT3621.
Can I tow the Ifor Williams TT3621 or the Lider 38950 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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