what are the usual dimensions of billboard
Billboard is a common word for poster panels and bulletins. There are three standard kinds of billboards: Bulletins Standard sizes: 14 by 48 feet (672 sq. ft.), plus extensions 10'6 by 36 feet (378 sq. ft.), plus extensions. Bulletins are used to display painted or computer-generated vinyl images and are found in high density traffic areas, such as highways and Interstates.