The hearth height in this photo is approximately 18" off the ground. In the case of a gas direct vent fireplace like the one shown in the photo, it is critical to consult the installation manual for the specific fireplace. The manual will tell you how much of a hearth (if any ) is required.
margotsappern thanked Hearth & Home Furnishings, Inc.
Hearth & Home Furnishings, Inc.