We would like to replace our fireplace mantel surround in our wood burning fireplace. Our current fireplace is a simple design installed in the early 2000s with basic/manufactured grade fireplace mantel surround and raised hearth which is a wood base with granite slab on top (see below). The current hearth is about 10 inches high. We are not big fans of the raised hearth and were wondering if it's possible to lower the hearth to the floor, even though we have a raised firebox. Would this look odd? We also want to replace our wall-to-wall carpet. Can you have a floor hearth with carpet? Thanks!