the present invention comprises a substantially planar , rigid structure intended to provide a removable , horizontal division of the interior of a four wheeled wire frame grocery cart . a flat , rigid structure , dimensioned for the particular manufacture of cart , possesses a member for obtaining support from at least one of the several pairs of opposed longitudinal bars found in the standard wire frame cart construction . the member enables positioning of the shelf by abutment of one side of said shelf against one interior side of the cart while holding the opposed side of the shelf from a position above the level of abutment and then simply releasing . the standard construction of a four wheeled wire frame cart employs a constant interior dimension between side walls along with several substantially linear , horizontal pairs of opposed frame members . this construction enables an appropriately sized shelf to be positioned in any one of several vertical heights predetermined by the placement of the horizontal frame members . a handle is suggested to assist in removal and insertion and may be combined with a member for hanging the shelf from a top edge of the cart down along an exterior side surface for convenient storage prior deployment .