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Indespension Alumax 10' x 5'7" Plant Trailer vs Richardson Trailers Supreme Treble

The Indespension Alumax 10' x 5'7" Plant Trailer is 670kg lighter empty and is rated 800kg heavier gross.

Last reviewed 13 September 2026

Indespension Alumax 10' x 5'7" Plant Trailer
Indespension Alumax 10' x 5'7" Plant Trailer - image: Indespension
Richardson Trailers Supreme Treble
Richardson Trailers Supreme Treble - image: Horse Trailer Sales

Key differences

Specifications side by side

Indespension Alumax 10' x 5'7" Plant TrailerRichardson Trailers Supreme Treble
Gross weight3500kg2,700kg
Unladen weight590kg1,260kg
Payload2910kg-
Internal size3.05 x 1.70-
Bed height367mm-
Capacity-2 horses forward, 1 pony reversed
External dimensions-5.40m long x 2.29m wide x 2.75m high
Internal dimensions-3.54m long x 1.80m wide x 2.33m high

Sources: Indespension Alumax 10' x 5'7" Plant Trailer, Richardson Trailers Supreme Treble. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the Alumax 10' x 5'7" Plant Trailer if...

  • you want one that is 670kg lighter empty
  • you want one that is rated 800kg heavier gross

A lightweight plant trailer with a low bed and shallow ramp angle, aimed at mini digger hire and contractors who want a high payload from a 3.5 tonne gross weight.

Full Alumax 10' x 5'7" Plant Trailer specifications →

Buy or hire the Supreme Treble if...

A three-berth Richardson trailer built for a household with two horses and a pony rather than a full string. The reversed pony bay keeps overall length down compared with three forward-facing berths, which suits smaller yards and tow vehicles.

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Full Supreme Treble specifications →

Common questions

What is the difference between the Indespension Alumax 10' x 5'7" Plant Trailer and the Richardson Trailers Supreme Treble?

The Indespension Alumax 10' x 5'7" Plant Trailer is 670kg lighter empty and is rated 800kg heavier gross. The Indespension Alumax 10' x 5'7" Plant Trailer is a 10 ft x 5 ft 7 in lightweight 3.5 tonne plant trailer; the Richardson Trailers Supreme Treble is a trailer for two horses and a pony, one forward one reversed.

Which is lighter, the Indespension Alumax 10' x 5'7" Plant Trailer or the Richardson Trailers Supreme Treble?

The Indespension Alumax 10' x 5'7" Plant Trailer. It is 670kg lighter empty than the Richardson Trailers Supreme Treble.

Can I tow the Indespension Alumax 10' x 5'7" Plant Trailer or the Richardson Trailers Supreme Treble 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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