Abstract: A folding chair providing a lightweight, strong and sturdy chair when unfolded and providing a compact elongated structure when folded. The folding chair invention accommodating arm chair and straddle chair configurations, each of these comprising a frame assembly having a plurality of pivotally connected strut members, and a fabric sling seat supported by the frame assembly. The frame assembly including two crossing interconnected sub assemblies, each sub assembly of four or five strut members. A pivotal stop link being used to stop the unfolding of each sub assembly, each stop link including two parallel shafts pivotally connecting a side member of one sub assembly with a side member of the other sub assembly.