Abstract: A modular panel system for making possible easy transportation in compact dissassembled form of a large single plane display surface structure comprised of at least four plastic foam core type panel sections assembled with their edges abutting the edges of adjacent panel sections so that the front faces of the panel sections form the single plane display surface and the back face of each of the abutting panel sections has fastened thereto at support positions with separable and pressure engageable loop and hook fastener elements a support panel overlapping the abutting edges of the associated panel sections so as to firmly bind the associated panel sections and support panel together, and a periphery support member at each of the peripheral edge junctures of the panel sections and likewise having separable and pressure engageable loop and hook elements binding the peripheral edges of the panel sections and the periphery support members together to thereby provide a unitary single plane display structure which