If your dog is expecting puppies then this K9 Kennel whelping door may be the choice for you. A whelping box or sometimes called a nesting box is a place where your dog will deliver her puppies and raise them for the first few weeks of their lives. With this door you can turn your kennel into the perfect whelping box. The door has two different openings one opens the whole door, like a normal door. The other latch opens the top part, leaving about 12 to 18 inches of gate on the bottom. This special opening allows your dog to go in and out without the puppies getting out. This addition is compatible with all our kennel systems. This gate is available in the welded wire or the expanded metal option. It is also available in three different sizes. This gate has been powder coated to be durable for years to come. This gate will make having puppies around much easier.