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Head to head

Brian James Eco Plant vs Ifor Williams HB511

The Brian James Eco Plant is 550kg lighter empty. The Ifor Williams HB511 is rated 100kg heavier gross.

Last reviewed 13 September 2026

Eco Plant
Brian James Eco Plant
Ifor Williams HB511
Ifor Williams HB511 - image: agrocotrailers.co.uk

Key differences

Specifications side by side

Brian James Eco PlantIfor Williams HB511
Gross weight2600kg2,700kg
Unladen weightfrom 450kg1,000kg
Payloadup to 2183kg-
Internal bed2.3m / 2.5m long x 1.1m / 1.5m wide-
AxlesTwin-
Internal length-3.52m
Internal width-1.79m
Brakes-Braked

Sources: Brian James Eco Plant, Ifor Williams HB511. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the Eco Plant if...

  • you want one that is 550kg lighter empty

Aimed at gardeners, groundcare contractors and farmers moving small low-clearance kit such as compact tractors or turf equipment. It undercuts the General Plant and Digger Plant ranges on price and weight for buyers who do not need a full-size plant trailer.

Listed by

Full Eco Plant specifications →

Buy or hire the HB511 if...

  • you want one that is rated 100kg heavier gross

The wider step up from the HB506, for larger horses or owners who want more room in transit. The extra 12cm of internal width and 36cm of length cost 80kg unladen, which is worth checking against your tow vehicle before choosing it over the HB506.

Listed by

Full HB511 specifications →

Common questions

What is the difference between the Brian James Eco Plant and the Ifor Williams HB511?

The Brian James Eco Plant is 550kg lighter empty. The Ifor Williams HB511 is rated 100kg heavier gross. The Brian James Eco Plant is a an entry-level beavertail plant trailer for small, low ground clearance machinery; the Ifor Williams HB511 is a two-horse trailer, twin axle, wider body.

Which is lighter, the Brian James Eco Plant or the Ifor Williams HB511?

The Brian James Eco Plant. It is 550kg lighter empty than the Ifor Williams HB511.

Can I tow the Brian James Eco Plant or the Ifor Williams HB511 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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