When you have two sofas or any larger seating arrangement a big coffee table might seem like the obvious solution. But also consider a pair of matching coffee tables. They will keep the focus off one large piece of furniture and let your eye move around the room more easily. One classic coffee table size is 48 by 24 inches so you can plan on that when thinking about your furniture arrangement. A large coffee table is often double that: 48 inches square.
Don’t forget when styling a glass coffee table that it’s not just about what goes on top but also what goes below. A see-through table practically demands a graphic rug. Try a black-and-white rug and use similarly stark accents in differing shapes or leave the top completely undressed and let the rug be the star of the show.