A metal garden shed is typically a simple, single-storey roofed structure. Metal sheds are 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. Pent roof sheds have a roof with slight slope and is almost flat in shape, the design can ensure water does not sit on top of the shed.