In ground swimming pool framework

An in ground swimming pool framework that rests on an earth foundation for supporting a water containing flexible liner comprising a plurality of horizontally aligned elongate panels, each of said panels having a pair of horizontal and vertical edges and a smooth inner surface adapted to be engaged by the liner, peripheral flanges formed to extend from each edge rearwardly with respect to the inner surface at least along the vertical and bottom edges with the flanges having essentially flat exterior surfaces, means joining the vertical flanges of adjacent panels together to define a vertical upper wall of an in ground depression with the flat horizontal bottom surfaces of the flanges resting on the earth surface of the depression and liner support means securable to the top horizontal edge of the panels for retaining the peripheral edge of the liner and in which each of the panels is formed in situ as a one-piece unit of material consisting essentially of hardened plastic material having glass fiber strands embedded therein, said plastic material and glass fiber strands being shaped and of sufficient thickness to cause the panels to be horizontally and vertically rigid and self-supporting with said plastic material and glass fiber strands supplying essentially all of the rigidity of the panel.