The construction drawings of the second floor frame antique commercial building include elevation, section, first floor plan, second floor plan, roof plan, door and window table, door and window details, stair details, node details, design instructions, etc. The area of a single building is 416.16 square meters, and the building height (the height from the outdoor ground to the roof ridge) is 9.908 meters. The construction of this project is classified into three categories