When I was first starting making I was so curious about how things went together, especially barn doors. I would see all these pretty pictures of barn doors on Instagram, but people would never show the backs. So I always wondered were they just gluing boards together, was there actual joinery in there, what does the back look like, what is this made out of, etc? And now that I have been doing it, woodworking, for a while I can let you know that the answer to the questions…. and the answers are yes, yes, flat and decorated, wood plywood and mdf! So needless to say, there is not one right way or wrong way to build at barn door… at least in my opinion.