Coroplast signs vary in size from very small, to a standard 18"x24", and up to a maximum of a 4'x8'. These signs can either get vinyl decals or they can be screen printed. 4'x8' signs must use vinyl. If there are any multicolor pictures, they can be put on a decal and stuck on. All signs can be printed on both sides, and we do provide stakes. With the screen printed signs, there is a minimum of 25 signs per color on the sign.