Foldable furniture unit

In a foldable furniture unit, a pair of upright side frames each having at least one leg portion, a pair of inclined cross frames pivotally connected intermediate their ends, each cross frame having its lower region pivotally connected to a lower region of a side frame, each cross frame including at its upper end a seat rail extending front to rear of the unit, a flexible seat having its side edges secured to the seat rails of said cross frames, the arrangement being such that when the unit is unfolded for use said seat rails are respectively in close proximity to said leg portions of said side frames and when the unit is folded for storage said seat rails are disposed above the uppermost regions of said leg portions of said side frames, said seat rails having therein longitudinal cavities reduced width access slots thereto, said seat at its side edges being provided with welts disposed in said rail cavities, a removable core disposed in each welt for preventing withdrawal of the welts through said slots, and at least one cap member on an end of each seat rail, said cap members constituting at least a partial closure for ends of said rail cavities, and at least one cap member on each seat rail having a restraining member projecting therefrom and extending closely adjacent a side frame leg portion when the unit is unfolded, said restraining members limiting fore and aft movement of said seat rails relative said side frames.