A metal garden shed is typically a simple, single-storey roofed structure; it is a good choice when long-term strength and resistance to fire, rot, or termites is desired. Apex roof sheds have the apex gable ends and are the most popular and economical type of metal shed design, while pent roof sheds have a roof with slight slope and is almost flat in shape, a design that can ensure water does not sit on top of the shed.