Head to head
Ifor Williams Business Inabox vs Ifor Williams CT136HD
The Ifor Williams CT136HD is 1,390kg lighter empty. The Ifor Williams Business Inabox is rated 900kg heavier gross and is 34cm (1ft) wider inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams Business Inabox weighs 1,390kg more empty.
- Gross weight: the Ifor Williams Business Inabox is rated 900kg heavier gross.
- Internal width: the Ifor Williams Business Inabox is 34cm (1ft) wider inside.
- Internal length: the Ifor Williams Business Inabox is 45cm (1.5ft) longer inside.
Specifications side by side
| Ifor Williams Business Inabox | Ifor Williams CT136HD | |
|---|---|---|
| Gross weight | 3500kg | 2,600kg |
| Unladen weight | 1900kg (Workshop M) | 510kg |
| Internal length | 4.45m (Workshop M) | 4.0m |
| Internal width | 2.18m | 1.84m |
| Overall length | 5.96m (Workshop M) | - |
Sources: Ifor Williams Business Inabox, Ifor Williams CT136HD. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Business Inabox if...
- you want one that is rated 900kg heavier gross
- you want one that is 34cm (1ft) wider inside
- you want one that is 45cm (1.5ft) longer inside
A trailer shell fitted out as a mobile workshop, shop or catering unit rather than a load carrier. Tradespeople and mobile caterers buy it to take a fitted-out workspace to a site rather than build one into a van.
Listed by
- Norfolk Trailers - Norwich
Buy or hire the CT136HD if...
- you want one that is 1,390kg lighter empty
The CT136HD suits recovery operators, racers and dealers who need a tougher car transporter than the standard CT136, thanks to its heavy-duty beam axles and multi-leaf suspension. Its 4.0m bed and 2.6 tonne gross weight cover most road cars without the cost of a beavertail trailer.
Listed by
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
- Shropshire Trailer Hire - Shrewsbury, Bicton
Common questions
What is the difference between the Ifor Williams Business Inabox and the Ifor Williams CT136HD?
The Ifor Williams CT136HD is 1,390kg lighter empty. The Ifor Williams Business Inabox is rated 900kg heavier gross and is 34cm (1ft) wider inside. The Ifor Williams Business Inabox is a trailer-based mobile workshop, boxvan or catering/retail unit; the Ifor Williams CT136HD is a ifor Williams' heavy-duty twin-axle car transporter trailer in the CT136 range, built for moving a single vehicle..
Which is lighter, the Ifor Williams Business Inabox or the Ifor Williams CT136HD?
The Ifor Williams CT136HD. It is 1,390kg lighter empty than the Ifor Williams Business Inabox.
Can I tow the Ifor Williams Business Inabox or the Ifor Williams CT136HD 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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