Heavy Duty Dog Crates Separation Anxiety Noise Phobia A truly Heavy Duty Dog Crate that provides both maximum security and safety for your separation anxiety or noise phobic dog is not easy to find. All our customers have 2 crucial questions when searching for a heavy duty dog crate for their separation anxiety dog. These are the two most important questions when evaluating any dog crate. Will this crate contain my dog? Will my dog be safe...