Small Great Room Design: Add seating. The raised fireplace offers a wonderful alternative seating area. The river-stone hearth doesn’t eat up square footage, but still packs a visual punch by serving as the room’s focal point. Décor: Dress down. Leather is always a favorite material, but it’s also predictable and, let’s face it, a little fancy and overbearing in smaller spaces. Here denim couches and ottomans make a bold statement about the great room’s overall kick-up-your-feet comfort.