Ok i know has been a topic that is in the hall of fame but as i read threw it didnt answer some of my questions. I going to build a barn in the next few months and curious about size. Metal frame or wood. i can build either. Insusuation in cool rooms, wall coverings, and size per calf. I have been inside a few nicer barns but i have always heard people say what they would change. I personally have built everything u can think of in my line of work. Materials arent that hard to get or install. I want to over do it so my family can grow with it and it be practical for the next 30 years. sound like a good idea anyways rite. any body that could help me get my plan in tact thanks in advance.