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.
If you don’t want the coffee table to be the focus of the room choose one with a glass top and a finish that blends with others in the room as in this example. This will keep the eye interested in all the items in the room not just one layer of the design. Coffee table metal bases with glass tops are another good choice to keep rooms feeling open. They’re also great when you have a special rug and don’t want to block views of it. Keep your glass cleaner handy though as there is no way around fingerprints.