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Head to head

Ifor Williams General Duty vs Richardson Trailers Supreme Ultra

The Richardson Trailers Supreme Ultra is 1.7m (5.5ft) longer inside and is 57cm (2ft) wider inside.

Last reviewed 13 September 2026

Ifor Williams General Duty
Ifor Williams General Duty - image: Ifor Williams Trailers
Supreme Ultra
Richardson Trailers Supreme Ultra

Key differences

Specifications side by side

Ifor Williams General DutyRichardson Trailers Supreme Ultra
Internal length1.84m (6ft) to 3.71m (12ft 2in)3.54 m (11 ft 7 in)
Internal width1.23m (4ft) to 1.71m (5ft 6in)1.80 m (5 ft 11 in)
Gross weight1400kg to 2700kg depending on model-
AxlesSingle or twin axle-
Maximum gross weight-3200 kg
Unladen weight-1100 kg
Overall length-5.00 m (16 ft 5 in)

Sources: Ifor Williams General Duty, Richardson Trailers Supreme Ultra. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the General Duty if...

Ifor Williams's entry-level flatbed range, bought by householders, gardeners and small trades for tip runs, garden waste and general loads. It is the trailer most UK hire yards keep several of, since one size or another suits almost any small job.

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Full General Duty specifications →

Buy or hire the Supreme Ultra if...

  • you want one that is 1.7m (5.5ft) longer inside
  • you want one that is 57cm (2ft) wider inside

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

Full Supreme Ultra specifications →

Common questions

What is the difference between the Ifor Williams General Duty and the Richardson Trailers Supreme Ultra?

The Richardson Trailers Supreme Ultra is 1.7m (5.5ft) longer inside and is 57cm (2ft) wider inside. The Ifor Williams General Duty is a small flatbed/general purpose trailer range; the Richardson Trailers Supreme Ultra is a a two-horse trailer from British manufacturer Richardson, part of its Supreme range of horse trailers..

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