SOLD OUT--- This house is designed for Feral s or stubborn cats that won't use a regular outdoor cat house. The Cat enters through the bottom through an opening that is not obstructed with a door or flap. Since heat rises and cold air sinks there is minimal heat loss thru this opening. The door on the front of the house is an escape hatch. The houses measures 16"x16"x15" on the inside. All 6 sides of the house are 2 inches thick with insulation and the house also includes straw bedding. There is an optional heated pad designed for outdoor use. House is constructed of plywood and painted with Behr Deck-Over a very durable finish. The base is 1" thick treated lumber and the post is 6" PVC, very sturdy. The top lifts off for easy access. Fits 2 average size Cats. THE 9X12 HEATED PAD CAN BE ADDED TO THIS HOUSE FROM OTHER CAT STUFF.