Head to head
Bockmann Big Portax WCF -Stall- vs Ifor Williams HB403
The Bockmann Big Portax WCF -Stall- is rated 1.1 tonnes heavier gross and carries 477kg more.
Last reviewed 13 September 2026
Key differences
- Gross weight: the Bockmann Big Portax WCF -Stall- is rated 1.1 tonnes heavier gross.
- Payload: the Bockmann Big Portax WCF -Stall- carries 477kg more.
- Internal width: the Bockmann Big Portax WCF -Stall- is 56cm (2ft) wider inside.
- Internal length: the Bockmann Big Portax WCF -Stall- is 1.07m (3.5ft) longer inside.
Specifications side by side
| Bockmann Big Portax WCF -Stall- | Ifor Williams HB403 | |
|---|---|---|
| Gross weight | 2700kg | 1600kg |
| Payload | 1310kg | 833kg |
| Internal length | 4150mm | 3.08m |
| Internal width | 1855mm | 1.30m |
| Internal height | 2400mm | - |
| Unladen weight | - | 767kg |
Sources: Bockmann Big Portax WCF -Stall-, Ifor Williams HB403. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the Big Portax WCF -Stall- if...
- you want one that is rated 1.1 tonnes heavier gross
- you want one that carries 477kg more
- you want one that is 56cm (2ft) wider inside
- you want one that is 1.07m (3.5ft) longer inside
The largest Portax body with a walk-in tack room and a stall-type partition rather than a fixed centre post, aimed at owners of big horses or those who want to load side by side. It is a step up in space from the standard Big Portax.
Listed by
- Böckmann UK Trailers & Horseboxes - Cinderford, Littledean
Buy or hire the HB403 if...
The smallest trailer in the HB horsebox range, bought by owners of a single horse or a couple of ponies who want the lightest legal option that can still be towed by a mid-size car.
Listed by
- Horse Trailer Sales - Robertsbridge, Staplecross
- Barnwell Trailers Ltd - Peterborough, Oundle, Barnwell
Common questions
What is the difference between the Bockmann Big Portax WCF -Stall- and the Ifor Williams HB403?
The Bockmann Big Portax WCF -Stall- is rated 1.1 tonnes heavier gross and carries 477kg more. The Bockmann Big Portax WCF -Stall- is a large aluminium horse trailer with a stall partition system; the Ifor Williams HB403 is a a compact single-horse or two-pony horsebox trailer.
Which carries more, the Bockmann Big Portax WCF -Stall- or the Ifor Williams HB403?
The Bockmann Big Portax WCF -Stall-, by 477kg.
Can I tow the Bockmann Big Portax WCF -Stall- or the Ifor Williams HB403 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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