Whirlwind Wall Mounting Plates are cover plates designed to fit standard electrical junction boxes. They are available in single gang (4-1/2" x 2-3/4") and double gang (4 1/2"x 4-1/2") and we stock blank plates up to 7 gang. Our wallplates are standard as 1/16" thick but black and clear annodized finished are also available as 1/8" thick.