Petsfit Outdoor Wooden Dog/Pet House, Painted with Water Based Paint Can hold small to medium dogs(up to 50 pounds),would fit medium dogs like Border Collie. Attractive, safe, easy-to-assemble dwelling for your dog to call home. FLAP INCLUDED. Inner dimension 26"x31.3"x28",please refer to the size diagram for more details The overhang roof will protect door opening. Plastic adjustable feet to keep the moisture out,removable floor for easier cleaning