Patent ID: 8505247

Claim:
A swimming pool having a plurality of wall panels secured together in an edge-to-edge relation to define the perimeter of said pool, at least one of said panels comprising: a generally rectangular main body having a generally planar body face forming a portion of a pool side wall; a pair of opposed edge flanges for juxtaposition with edge flanges of adjacent wall panels, the edge flanges extending from the plane of the body face at an angle differing from orthogonal by a small draft angle, each of said edge flanges including an outwardly facing surface which faces away from an opposing one of said edge flanges; and a plurality of elongated ribs extending along each of said edge flanges of said at least one panel in a direction generally orthogonal to the plane of the body face, each of said plurality of elongated ribs protruding beyond said outwardly facing surface of a respective one of said edge flanges, each of said plurality of elongated ribs being located along a respective one of said edge flanges and being thereby configured to abut with a corresponding elongated rib on an adjacent wall panel edge flange to compensate for draft angles and to position said body face generally coplanar with an adjacent panel face.