Should your sofa float? Pull it from the wall and see

Should your sofa sit against the wall or float into the room? A floating sofa can turn one big space into a seating zone and a walkway, but only if enough floor is left behind it.

Enter your room and sofa size, then drag the sofa towards and away from the wall. You'll see how much room is left to walk behind it, whether a slim console would fit, and how much space remains in front, with the rule of thumb behind each answer.