When you are going in a straight load, the single horse should be on the left, the driver’s side. If you have two horses in a straight load trailer, put the heavier horse on the left. This is best for two reasons: Roads are generally crowned.
If you tie a horse too low, it may be able to get a leg over the rope and become seriously injured, especially in a confined space like a trailer. For safety, always tie a horse at wither-height or higher. Horses should be tied with enough length to hold their heads naturally, but not move around too much.
In our opinion, stock trailers are best used when hauling livestock like sheep, goats, cattle, or hogs… NOT horses. Horses are more prone to injury, much more valuable, and stock trailers lack many of the safety features we would want for them.
Lighter items should be placed near the top and in the rear of the trailer. Your cargo should be packed closely and firmly, and tied down to secure it. Similarly, open trailers should be loaded heavier in the front of the box – up to 60% of the cargo weight.
Not only are straight load trailers inexpensive when compared to slant load trailers, they’re often safer for horse owners to load. In addition to safety for owners, a straight load trailer makes it easier to reach a horse in trouble, whether they panicked in transit or were jostled during an accident.