ASL Solutions' Dog Palace is an insulated dog house sized for medium to large dogs (labs to St. Benards). Each panel contains 2-4 inches of real foam (Styro/EPS) insulation. The Dog Palace features an easy pass-through self-closing door, a raised and sloped floor to provide a dry and warm bedding area, along with a drain hole to make cleaning a breeze. Simply hose the house down and the water runs right out. Your pet can rest in comfort, while still being able to see his surroundings.The self storing window panes easily reposition from winters closed position to summers cross ventilation position without tools to keep your pet warm in cold weather and cool when temperatures rise. For initial training, the bottom half of the door is removable. The new heater portal (provides for cord to directly exit rear Panel ) keeps dog from tripping over electrical cord. Dog Palace Heaters sold separately.The Dog Palace makes a beautiful addition to your back yard while keeping your dog clean, warm and comfortable.Assembled inside dimensions: 30.5" H x 24" W x 35.5" LAssembled outside dimensions: 38.5" H x 31.5" W x 47.5" LDoor dimensions: 15.5" W x 18" HMeasurements from floor/ground to bottom of door: 11"