Head to head
Ifor Williams LM146 vs Ifor Williams TT3621
The Ifor Williams LM146 is 255kg lighter empty and carries 255kg more.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams TT3621 weighs 255kg more empty.
- Payload: the Ifor Williams LM146 carries 255kg more.
Specifications side by side
| Ifor Williams LM146 | Ifor Williams TT3621 | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 735kg | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) |
| Payload | 2765kg | 2510kg (195/60R12C) or 2500kg (185/70R13C) |
| Overall length | 5.60m | - |
| Overall width | 2.10m | - |
| Bed | 4.23m / 13'9" ((internal) length); 1.98m / 6'5" ((internal) width) | - |
| Tyres | 195/60R12C | - |
| Internal length | - | 3.62m / 11'9" |
| Internal width | - | 1.95m / 6'5" |
Sources: Ifor Williams LM146, Ifor Williams TT3621. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the LM146 if...
- you want one that is 255kg lighter empty
- you want one that carries 255kg more
The LM146 is a general-purpose flatbed aimed at landscaping, construction and plumbing trades that need a long, wide load bed with a high payload on a single 3500kg-braked chassis. It is used where loads are bulky or awkwardly shaped rather than plant machinery, which typically goes on the ramped GX range instead.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- G-Tec Trailers - Thetford, Holme Hale
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Buy or hire the TT3621 if...
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 LM146 and the Ifor Williams TT3621?
The Ifor Williams LM146 is 255kg lighter empty and carries 255kg more. The Ifor Williams LM146 is a a twin-axle flatbed goods trailer in the heavier-duty LM range.; the Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping.
Which is lighter, the Ifor Williams LM146 or the Ifor Williams TT3621?
The Ifor Williams LM146. It is 255kg lighter empty than the Ifor Williams TT3621.
Which carries more, the Ifor Williams LM146 or the Ifor Williams TT3621?
The Ifor Williams LM146, by 255kg.
Can I tow the Ifor Williams LM146 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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