Here Floor plan details including living room Small living room floor plans may only need dimensions of 10x13ft total, but larger rooms with sectioned spaces may require dimensions of 15 x 20ft or more. dimensions with automatic room area calculations and optional measurement displays. Small living room floor plan layout with sofa and 2 chairs Here’s a small living room floor plan. It consists of 1 sofa and two flanking armchairs all oriented toward a TV. This is a good apartment arrangement. One sofa, three tables, and four chairs , for more details of Floor plan download this file.