This Architectural Drawing is AutoCAD 2d drawing of Double bed blocks in AutoCAD, dwg file. The dimensions of a full/double bed are: 54 inches X 75 inches. The width of a double bed is 54 inches, or 4 feet 6 inches. This makes it spacious for one person, but fairly cramped for two. The length of a double bed is 75 inches, or 6 feet 3 inches.