Most of the time barn doors are doors that are purchased standard doors that are converted to make them long enough to function as barn doors. But how hard is it to actually build a custom one? Beyond that, how hard is it to build a really nice one out of hardwood? These questions are answered in this video by showing you the process of building a barn door out of regular 3/4" alder hardwood and 1 3/8 " alder hardwood. The process isn't really that difficult but the results are stunning. This barn door matches custom cabinetry that is already in the home. The video also shows how to stain and finish the barn door using an air compressor and inexpensive spray gun.