The average horse trailer can vary in size and shape, depending on the type of horses you are hauling. Smaller trailers are designed for ponies or miniature horses, while larger ones may be used to transport full-sized horses. Some common features of a typical horse trailer include three to four stalls that open from the rear, side doors for easy access to your animals, and a roof hatch for ventilation. Horse trailers also typically have some form of ramp or walkway so that riders can easily mount their steeds before taking them out onto the road. The flooring is usually made from rubber mats provide cushioning during travel; however wooden slats are sometimes preferred by owners looking for more traditional styling. Depending on how many horses you need to haul at once, there are various models available with different numbers of stalls ranging from two up to six or even eight in some cases. When shopping around for an average horse trailer it’s important consider what kind of usage it will see – long trips with multiple stops over rough terrain require higher quality materials than shorter journeys across flatter ground - as well as any additional features such as living quarters included in the design..