ROOM FLOOR PLAN APP:
I just downloaded the room FREE furniture arrangement app called Roomle (R O O M L E) for working on floor plans. You set up the room dimensions, add windows, doors, furniture. You can adjust the dimensions of the furniture, esp. Tables and bookcases. Like most Apps, It is intuitive vs an "owners' manual". Not really difficult. I am having fun with it. You can "save" multiple rooms, "duplicate" an existing room plan and then re-arrange the furniture and save that plan for comparison, etc.
Sandy