Abstract: A heat-resistant and spark-resistant hearth pad assembly presents a finished appearance along a floor surface, and supports a wood stove or other heat-generating appliance or device. The hearth pad assembly is transportable in compact form as a kit, and is readily assembled at an installation location, preferably without the use of tools. The hearth pad assembly includes first and second formed panels, such as of sheet metal having a corrugated or undulating cross sectional shape including upper surface portions and lower surface portions, with a generally planar overall shape. The formed panels have opposite side edge portions that are placed near one another and coupled together using a securing element during assembly. A plurality of finishing elements, such as tiles, are typically pre-attached to at least the upper surface portions of the formed panels. Optionally, a framework and/or heat-resistant substrate may be respectively positioned around and beneath the formed panels.