Good condition in box. Shelter 13.0-in W x 13.0-in L Square Black Galvanized Steel. It's outside flue tile dimensions: 8-in x 8-in, 9-in x 9-in, 8-in x 12-in, 9-in x 13-in, 12-in x 12-in, 13-in x 13-in, 8-in round, 10-in round, 12-in round. Read more.