Three horses, 9,900 pounds of GVWR, and 3,800 pounds of that spent before you load anything. Do the subtraction and this 2006 Adam 7302 leaves roughly 6,100 pounds of payload, which covers three full-size horses and a dressing room worth of tack with margin left over. That arithmetic is the reason to buy an aluminum three-horse instead of a steel one.
The box is 15 feet, outside width is 6 feet 11 inches, and the inside stands 7 feet 6 inches, about 22.5 hands. Tall enough for warmbloods and big stock horses. The dressing room runs a 1-foot short wall and a 6-foot longwall, so you get real tack storage without stealing much from the stalls. It presents clean for a trailer built in 2006.
| Capacity | 3 horse |
|---|---|
| Construction | All aluminum |
| Box length | 15 ft |
| Inside height | 7 ft 6 in (22.5 hands) |
| Outside width | 6 ft 11 in |
| Axles | 5,200 lb |
| Tires | 16 in, spare included |
| Dressing room | 1 ft short wall, 6 ft longwall |
| Empty weight | Approx. 3,800 lbs |
| GVWR | 9,900 lbs |
| Jack | Manual |
Underneath sit 5,200 lb axles on 16-inch tires. That is a step up from the 3,500 lb axles you find on two-horse trailers, and it is what the 9,900 lb rating rests on. Sixteen-inch tires also run cooler on long hauls than 15s at the same load, which is the kind of detail that only matters until the day it matters a great deal.
What to look at on a trailer this age: the floor first, then the brake magnets and bearings, then the tire date codes regardless of how the tread looks. Aluminum does not rot the way steel does, but the floor and the running gear still age. A manual jack and a spare tire come with it.
This is a barn-run and weekend-show trailer, not a competition rig with a bed in it. If that describes your hauling, it is a lot of trailer for the money. Weights and dimensions listed are approximate and worth confirming against your horses and your truck. Flat $550 freight to the continental US, 30-day returns, questions to (712) 356-0109.

























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