This architectural drawing is Site marking of building. Site marking is one of the starting point of your construction. The formula to mark the foundation is Square Root (L2 + B2). The mark is drawn for 4 feet from the first point. Now from this point a mark is drawn for 5 feet and also an arc is drawn. After that a measurement is created for 3 feet from the first point and an arc is drawn. For more details and information download the drawing file.
