Are you thinking of extending your living space? Well, you can actually do this by developing an outdoor shed. Sheds have traditionally been used as additional storage in many homes but modern designs are creating room for humans to actually live in. A livable shed can be a great escape from the hustle of daily life, especially if you can put it up somewhere in a garden. Livable sheds for sale come in a wide range of floor plans and designs. However, you don't want something big.