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Ifor Williams CT166 vs Woodford Eco Box

The Ifor Williams CT166 is rated 3 tonnes heavier gross.

Last reviewed 13 September 2026

Ifor Williams CT166
Ifor Williams CT166 - image: Shropshire Trailer Hire
Eco Box
Woodford Eco Box

Key differences

Specifications side by side

Ifor Williams CT166Woodford Eco Box
Gross weight3500kg500kg or 750kg options
Unladen weight885kg205-275kg depending on size
Payload2615kg-
Internal bed4.87m x 1.90m-
Dimensions-3,080 x 1,595 x 1,960mm external (largest, ECO745)
Internal load space-2,100 x 1,175 x 1,470mm (ECO745)
Axle-Single axle, unbraked

Sources: Ifor Williams CT166, Woodford Eco Box. Figures vary by model year and options, so check with the supplier before you commit.

Buy or hire the CT166 if...

  • you want one that is rated 3 tonnes heavier gross

Bought by garages, recovery operators and plant hire firms who load low vehicles or compact machinery by tilting the deck to ground level instead of driving up loading ramps. The narrower CT166 bed suits standard cars and single machines.

Listed by

Full CT166 specifications →

Buy or hire the Eco Box if...

A lightweight box trailer built to order in Norfolk, bought by tradesmen and small businesses who want secure, lockable load space without the running costs of a van. It comes in four sizes so buyers can match it to what they need to carry.

Listed by

Full Eco Box specifications →

Common questions

What is the difference between the Ifor Williams CT166 and the Woodford Eco Box?

The Ifor Williams CT166 is rated 3 tonnes heavier gross. The Ifor Williams CT166 is a a tilt-bed car and machinery transporter trailer; the Woodford Eco Box is a lightweight single-axle box trailer for general and van-replacement use.

Can I tow the Ifor Williams CT166 or the Woodford Eco Box 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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