We are building a house that is very open floor plan, and the family room is basically open to the LR and DR except for a 5 foot column that will have a double sided FP in it. I wanted to make the FP pretty modern looking or as modern as I could afford - and the builder came up with the idea of putting a big black granite surround (6-8 in) on it - no mantel and no hearth. but then he thought maybe on the side that faces the LR to do a more formal FP with a mantel and hearth. Will that look weird - to have it different on each side?