Rv Teardrop, Toy Hauler, Horse, Marine,Trailer, Camper Window (1) New 16"x14" for 1 1/2 Walls Horizontal half vent with a screen and window lock, Includes stainless steel mounting screws Cut Out 16-1/4" x 14-1/4" Outside Measurement 17-3/16" wide x 15-1/4" tall Corner Radius 3-5/16" Screws included