In this paper, the characteristics of mechanical behaviour due to various edge-ratio of uniformly loaded clamped skew-plates has been described. In this study, the skew-plate was discretized using 8-noded isoparametric element and Mindlin's plate theory was adapted in finite element formulation. The edge-ratio 0.5, 0.8, 1.0, 1.2, 1.5, 2.0 and 2.5 were considered. Hence, five cond-itions of the skew-angle, the seven levels of edge ratio were tried. When the edge-ratio was 2.5 or the edge-ratio was 2.0 and the skew-angle was less than 45 degree, the behaviour of the uniformly loaded the skew-plate with all edges clamped was independent of the skew-angle.