A sofa includes a furniture base assembly that is easily assembled without the need of a jig or fixture, provides for a reduced number of component parts, and provides for aesthetically pleasing base assembly joints. In one embodiment, the front rail member and the back rail member are integrally formed with the corner block members, side rails are connected thus forming an integrated rail member and thereby dispensing with a base joint exposed on the front of the furniture product. The base is affixed to the sofa frame and upholstery is attached to the frame for providing a finished sofa with a showood base.