Let your pet out with this storm door with built-in pet door. These doors combine function and style, letting the light in while giving your dog the freedom to go in and out. Don't worry about unwanted critters - the built-in pet door features an inside panel that slides down to close the flap. Our half-screen and solid-core doors seal out the weather with heavy-duty weather strip systems. Built on a 1-inch-thick solid core and finished with our age and weather-resistant DuraTech®, these doors provide the ultimate value when it comes to weather protection.