Rv Teardrop, Toy Hauler, Horse Trailer, Cargo, Camper Windows (1) 14"x16" for 1 1/2" Walls Vertical half vent with a screen and window lock, Includes stainless steel mounting screws Cut Out 14-1/4" x 16-1/4" Outside Measurement 15-1/4" wide x 17-3/16" tall Corner Radius 3-5/16" for 1 1/2" thick walls