Head to head
Ifor Williams Business Inabox vs Ifor Williams LM146
The Ifor Williams LM146 is 1,165kg lighter empty.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams Business Inabox weighs 1,165kg more empty.
Specifications side by side
| Ifor Williams Business Inabox | Ifor Williams LM146 | |
|---|---|---|
| Gross weight | 3500kg | 3500kg |
| Unladen weight | 1900kg (Workshop M) | 735kg |
| Overall length | 5.96m (Workshop M) | 5.60m |
| Internal length | 4.45m (Workshop M) | - |
| Internal width | 2.18m | - |
| Overall width | - | 2.10m |
| Bed | - | 4.23m / 13'9" ((internal) length); 1.98m / 6'5" ((internal) width) |
| Payload | - | 2765kg |
| Tyres | - | 195/60R12C |
Sources: Ifor Williams Business Inabox, Ifor Williams LM146. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Business Inabox if...
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 LM146 if...
- you want one that is 1,165kg lighter empty
The LM146 is a general-purpose flatbed aimed at landscaping, construction and plumbing trades that need a long, wide load bed with a high payload on a single 3500kg-braked chassis. It is used where loads are bulky or awkwardly shaped rather than plant machinery, which typically goes on the ramped GX range instead.
Listed by
- Blains Trailers & Tyres - Hemel Hempstead, Great Gaddesden
- G-Tec Trailers - Thetford, Holme Hale
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Ifor Williams Business Inabox and the Ifor Williams LM146?
The Ifor Williams LM146 is 1,165kg lighter empty. The Ifor Williams Business Inabox is a trailer-based mobile workshop, boxvan or catering/retail unit; the Ifor Williams LM146 is a a twin-axle flatbed goods trailer in the heavier-duty LM range..
Which is lighter, the Ifor Williams Business Inabox or the Ifor Williams LM146?
The Ifor Williams LM146. It is 1,165kg lighter empty than the Ifor Williams Business Inabox.
Can I tow the Ifor Williams Business Inabox or the Ifor Williams LM146 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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