A makeshift shelter is a structure that is built quickly and with limited resources. The two most common types of makeshift shelters are huts and lean-tos. A HUT is a small, simple structure made of natural materials such as sticks, leaves, and mud. A lean-to is a shelter made of a sloping roof supported by one wall or a frame. Both huts and lean-tos provide basic protection from the elements and can be constructed in a short amount of time.