Truaire C102M 14X08(Duct Opening Measurements) 2-Way Supply 14-Inch by 8-Inch Sidewall or Ceiling Register Grille, White Smoothglide damper Model Size Indicates Duct Opening Measurements not Wall Opening Measurements. High quality steel components , no plastic High quality powder coated The actual face size is 15.75-inch in width and 9.75-inch in height.