I'm thinking an 8x10 will work nicely. From what I've read, I should at least have the front legs of the furniture in the room touching the outside of the rug to create a seating area. The coffee table will be on there, too. But it doesn't have to stretch to the other side of the room to include the hope chest the t.v. is sitting on or the shelves we have over in the corner. If it did, we'd be covering up almost all of the pretty bamboo installed last year. And who wants to do that?