A partition system has at least one pivot joint, each pivot joint having two pivot structures with partial circular cross-sections centered on a pivot axis. Each pivot structure engages with one of a plurality of wall panels and permits the engaged wall panel to pivot about the pivot axis. A linking structure extends between and joins the two pivot structures. A stop member extends outwardly from the linking structure to limit a range within which the wall panels can pivot about the pivot axis. Each of the wall panels has a pair of parallel tabs extending substantially perpendicularly from at least one end face of the wall panel. At least one parallel tab has an end flange extending inwardly toward the second tab. The end flange snap fit onto one of the pivot structures. Each of the wall panels is pivotally connected to the at least one pivot joint.