Head to head
Ifor Williams TT3621 vs Richardson Trailers Supreme Ultra
The Ifor Williams TT3621 is 110kg lighter empty and is 15cm wider inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Richardson Trailers Supreme Ultra weighs 110kg more empty.
- Internal width: the Ifor Williams TT3621 is 15cm wider inside.
- Internal length: the Ifor Williams TT3621 is 8cm longer inside.
Specifications side by side
| Ifor Williams TT3621 | Richardson Trailers Supreme Ultra | |
|---|---|---|
| Unladen weight | 990kg (195/60R12C tyres) or 1000kg (185/70R13C tyres) | 1100 kg |
| Internal length | 3.62m / 11'9" | 3.54 m (11 ft 7 in) |
| Internal width | 1.95m / 6'5" | 1.80 m (5 ft 11 in) |
| Gross weight | 3500kg | - |
| Payload | 2510kg (195/60R12C) or 2500kg (185/70R13C) | - |
| Maximum gross weight | - | 3200 kg |
| Overall length | - | 5.00 m (16 ft 5 in) |
Sources: Ifor Williams TT3621, Richardson Trailers Supreme Ultra. 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 110kg lighter empty
- you want one that is 15cm wider inside
- you want one that is 8cm 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.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
- Lancaster trailer hire - ELY
Buy or hire the Supreme Ultra if...
The Supreme Ultra suits owners looking for a well-established British-built two-horse trailer able to carry a pair of taller horses, since sellers describe it as taking two horses up to about 17.2hh. As a long-running Richardson model it is more often found on the used market now than ordered new.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
Common questions
What is the difference between the Ifor Williams TT3621 and the Richardson Trailers Supreme Ultra?
The Ifor Williams TT3621 is 110kg lighter empty and is 15cm wider inside. The Ifor Williams TT3621 is a twin axle tipping trailer, 12ft body, electric tipping; the Richardson Trailers Supreme Ultra is a a two-horse trailer from British manufacturer Richardson, part of its Supreme range of horse trailers..
Which is lighter, the Ifor Williams TT3621 or the Richardson Trailers Supreme Ultra?
The Ifor Williams TT3621. It is 110kg lighter empty than the Richardson Trailers Supreme Ultra.
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