Head to head
Bockmann Portax Esprit vs Ifor Williams Business Inabox
The Bockmann Portax Esprit is 1,057kg lighter empty. The Ifor Williams Business Inabox is rated 1.1 tonnes heavier gross.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams Business Inabox weighs 1,057kg more empty.
- Gross weight: the Ifor Williams Business Inabox is rated 1.1 tonnes heavier gross.
Specifications side by side
| Bockmann Portax Esprit | Ifor Williams Business Inabox | |
|---|---|---|
| Gross weight | 2400kg | 3500kg |
| Unladen weight | approx. 843kg | 1900kg (Workshop M) |
| Payload | 1557kg | - |
| Horse capacity | 2 horses | - |
| Body material | Aluminium | - |
| Internal length | - | 4.45m (Workshop M) |
| Internal width | - | 2.18m |
| Overall length | - | 5.96m (Workshop M) |
Sources: Bockmann Portax Esprit, Ifor Williams Business Inabox. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Portax Esprit if...
- you want one that is 1,057kg lighter empty
Bockmann's entry-level model in its Portax range, built for owners wanting a durable two-horse trailer without the cost of the higher trims. Its light unladen weight keeps it towable by a mid-size 4x4 or pickup.
Listed by
- Böckmann UK Trailers & Horseboxes - Cinderford, Littledean
Buy or hire the Business Inabox if...
- you want one that is rated 1.1 tonnes heavier gross
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
Common questions
What is the difference between the Bockmann Portax Esprit and the Ifor Williams Business Inabox?
The Bockmann Portax Esprit is 1,057kg lighter empty. The Ifor Williams Business Inabox is rated 1.1 tonnes heavier gross. The Bockmann Portax Esprit is a two-horse aluminium-bodied horsebox trailer; the Ifor Williams Business Inabox is a trailer-based mobile workshop, boxvan or catering/retail unit.
Which is lighter, the Bockmann Portax Esprit or the Ifor Williams Business Inabox?
The Bockmann Portax Esprit. It is 1,057kg lighter empty than the Ifor Williams Business Inabox.
Can I tow the Bockmann Portax Esprit or the Ifor Williams Business Inabox 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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