Are there any examples that show structure and maximal breaks of “common” items and buildings (e.g. doors, walls, etc.)? The only two things I have found are a bridge in To race the thunder and ships in Conan the Pirate.
Not that I am aware of. Examples in the books are for the ships and if I remember correctly - vehicles in the core rulebook. I would wing it based on common sense.
I believe in the Brigand book has some siege structures that have some further examples as well.