The goal is to develop cost-effective, durable, and aesthetically pleasing street seating that can easily blend into various surrounding environments. The concept of “Proportion Space” involves finding different existing pipes according to the functional attributes of the structure and seating surface to create a seating design that meets the required conditions and is visually appealing. This method of assembling structures can adapt to the size of different streets and spaces, developing an extended design series with appropriate proportions, presenting a simple, textured, and stylistically consistent appearance.