Head to head
Ifor Williams HB403 vs Maypole MP6815
The Maypole MP6815 is 690kg lighter empty. The Ifor Williams HB403 is rated 1,101kg heavier gross and is 1.63m (5.5ft) longer inside.
Last reviewed 13 September 2026
Key differences
- Unladen weight: the Ifor Williams HB403 weighs 690kg more empty.
- Gross weight: the Ifor Williams HB403 is rated 1,101kg heavier gross.
- Internal length: the Ifor Williams HB403 is 1.63m (5.5ft) longer inside.
- Payload: the Ifor Williams HB403 carries 411kg more.
- Internal width: the Ifor Williams HB403 is 30cm wider inside.
Specifications side by side
| Ifor Williams HB403 | Maypole MP6815 | |
|---|---|---|
| Gross weight | 1600kg | 499kg |
| Unladen weight | 767kg | 77kg |
| Payload | 833kg | 422kg |
| Internal length | 3.08m | 145cm |
| Internal width | 1.30m | 100cm |
| Internal height | - | 32cm |
Sources: Ifor Williams HB403, Maypole MP6815. Figures vary by model year and options, so check with the supplier before you commit.
Buy or hire the HB403 if...
- you want one that is rated 1,101kg heavier gross
- you want one that is 1.63m (5.5ft) longer inside
- you want one that carries 411kg more
- you want one that is 30cm wider inside
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
Buy or hire the MP6815 if...
- you want one that is 690kg lighter empty
A mid-sized general purpose trailer for buyers who want more bed length than the MP6812 while staying light enough for a small car to tow.
Listed by
- Sleaford Trailers - Sleaford
- Towy Trailer Centre - Llandeilo, Ffairfach
Common questions
What is the difference between the Ifor Williams HB403 and the Maypole MP6815?
The Maypole MP6815 is 690kg lighter empty. The Ifor Williams HB403 is rated 1,101kg heavier gross and is 1.63m (5.5ft) longer inside. The Ifor Williams HB403 is a a compact single-horse or two-pony horsebox trailer; the Maypole MP6815 is a a small unbraked single-axle general purpose car trailer rated at 499kg gross weight..
Which is lighter, the Ifor Williams HB403 or the Maypole MP6815?
The Maypole MP6815. It is 690kg lighter empty than the Ifor Williams HB403.
Which carries more, the Ifor Williams HB403 or the Maypole MP6815?
The Ifor Williams HB403, by 411kg.
Can I tow the Ifor Williams HB403 or the Maypole MP6815 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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