Modular panel for right angle interconnection

A modular panel assembly of interconnectable rectangular modular panels, each said modular panels having opposed parallel outer and inner surfaces, side edges and end edges;

• said end edges each having a longitudinal right-angle connecting recess therealong and extending from across said side edges and having an opening in said inner surface, said longitudinal right-angle connecting recess defining a transverse end wall and a lateral planar flat wall, an elongated connector member secured along said connecting recess and disposed in contact with said transverse end wall, said connector member having a fastener receiving inner corner recess therealong, said lateral planar flat wall defining an abutment end wall having a dimension which is the same as the width of the outer surface of said elongated connector member, said connector member being constructed from material capable of receiving fasteners therein, said connecting member having at least a portion thereof disposed alongside an end portion of said inner surface of said panel whereby when two of said panels have their panel connecting recesses mated with one another one or more fasteners may be introduced through one of said connector members from a side of said inner surface of one of said panels to secure said connector members together to secure said two of said panels, and further connecting means along said side edges of said panel.