Spacious and Versatile Design: Generously sized at 81"L x 39.25"W, this whelping box is ideal for dogs of all sizes, from small to large breeds, offering ample room for comfort and growth. Two-Zone Intelligent Layout: Featuring a clever two-room design with three removable doors, it allows the mother dog to have her own separate space after the first critical weeks, while keeping the puppies secure and contained.