Share your wish list and our staff can discuss additional options to your plans, such as electrical or water, manure handling, ventilation, and floor covering. Everyone knows that a couch is much more comfortable than a stiff school desk, so why go down to Rudeville School to learn about horse barn building when we can answer all of your questions in a comfortable environment? The actual size of a small horse barn depends on the number of horses you have and how you want to care for them.