How do I know which side is North, South, East and West? Yes, it is arbitrary, but we had to do it to figure out where our customers wanted things. See labeled photos above to determine what we are calling North, South, East and West. Please keep in mind we will prepare a drawing of your order prior to building it, so no worries if you don't get the direction correct initially. You can fix it later when you get the drawing for your feedback. Thank you.