If you are buying your swing bed before you are sure of the style or color of your porch, your ideal choice is an unfinished swing bed. These swing beds come in hundreds of styles. You can opt for a sleek and modern, with thin slats and straight back, or a  charming Victorian with ornate slats. You can choose any of the available materials such as treated pine, cypress, teak or cedar. When you purchase a swing bed unpainted, you get to see the true wood grain  and often the material will guide you towards using stain or paint.  Rich hardwoods are too beautiful to cover with paint, so you will choose them if you plan on staining your unfinished swing bed. Opting for a treated pine is an economical option and you can paint them with any color of rainbow, and even repaint them if you change your mind. Plan to use a good quality outdoor paint to prolong the life of your unfinished swing bed.  The size is another  decision you have to make and fortunately unfinished swing beds  come in a range of sizes. Choose the size that will fit your porch without crowding it. If you can, go for the biggest, such as queen and enjoy the luxury of space. You will need a plush, thick mattress and a few cushions to make your new swing bed your new favorite spot in the house.