What are the dimensions of this cover

The top of the fireplace that this fits is 42” W x 14” D, the manufactures do not list the individual specs for this cover. It will fit the 8200, 8205, and 8210 models. If you have any further questions or need further assistance, please feel free to reach out to one of our experienced customer service representative and they would be happy to assist you. Thank you and have a wonderful day.