Swing sets usually hold two to four seats, along with sliding equipments and climbing parts. The various swing sets accessories include pre-cut, pre-sanded, and pre-drilled lumber, also the necessary hardware, accessories, and slide. There are also commercial swing sets that are used in schools, residential playgrounds and other public gardens. The swing sets come in variety of colors and choices. Wooden swing sets are usually made of cedar, and are among the most popular ones. The wood varies in its quality and make.  cnn money