Is there a hearth with this item if so what is the depth

Hi, thanks for your enquiry. This unit would be the surround only. It can be purchased as a full electric suit in 54" - see link https://www.stovesareus.co.uk/pureglow-hanley-54-electric-fireplace-suite-white-grey.html, or you could add your own hearth; I have linked one suitable here https://www.stovesareus.co.uk/gallery-black-granite-hearth-48-15.html