What dictates how difficult a plan is? All of the pieces I want to build for my house seem to be considered hard or advanced. I don't want/need the beginner ones, so don't want to spend the time or money building those plans. But, I also don't want to start on something and get totally overwhelmed. In general, are there specific things that make something more difficult?
When pieces need to be very precisely cut to match up it increases the difficulty level.