I've just finished making a Stoelzel's Structures 28mm scale Barn. This was one of the first models that Carl produced and it was designed with the beginner in mind. However, as is usual with me, I have gone the extra mile on this model to show just what can be done if you put your mind to it.
My final thoughts on this model are that it will indeed be an excellent model for newbies to start on. You do not have to go to the lengths that I went to with my model. You can make the barn with or without the big doors. I would recommend adding them. Whether you want them to open and close is entirely up to you. Also, you can build this model with or without the props (ladders, hay bales or crates). Once I built this model it occurred to me that this would work just as well in a Wild West setting as in a contemporary setting. Indeed, it is such a generic design that it is almost timeless. I have always had a hankering for playing Wild West skirmish games in 28mm scale so I decided to download Carl's Wild West set of model buildings - Final Frontier. There are three barns in this set, including one that is quite similar to this one. They are well worth checking out.