Necessary Height: Whelping Box need to provide protection to both mom and puppies. Whelping Box should be AT LEAST 22″ high for sufficient protection to puppies up to 8 weeks old. Small breed mother dog also need at least 22″ high to PREVENT them from easily jumping out.d mother dog also requires at least 22″ high to prevent them from easily jumping out.
Space Maximization: Pig-Rail that provide both great weight support and offers greatest inside space. SMART DESIGN=MORE SPACE.
Neat Panel Design: Easy to clean. You want to spend more time to care for puppies than panels.