Build A Fireplace Hearth
Build A Fireplace Hearth. (1) 2″ x 12″ x 10′ for the hearth (11) 2″ x 4″ x 10′ for framing; Build the platform for the hearth out of mdf or plywood.

How high should a fireplace hearth be? It should be noted that not every home has an existing firebox for which this project will require additional materials purchase. What is the wall behind a fireplace called?