Abstract: Furniture systems, furniture system components, methods of assembling furniture systems, and methods of assembling furniture system components are described in the present disclosure. The furniture systems comprise a seat frame assembly connected to a first arm assembly and a second arm assembly and a back assembly, wherein the seat frame assembly is connected to the first and second arm assemblies by inserts and tabs formed thereon. Inner frame assemblies and deck sections for furniture pieces are also described and include deck webs that define deck gaps therein.