Patent ID: 7712226

Claim:
A wall mountable grid system apparatus for forming a spreadsheet having cells together with an underlying wall structure, the grid system comprising: a substantially planar base member having an upper surface and a lower surface opposite of the upper surface, an attachment member mounted to the lower surface of the base, the attachment member compatible with the lower surface of the base, to facilitate releasable attachment of the base member to an outside surface; and the base member and the attachment member configured as a plurality of integrated border members which cooperate to define a plurality of voids therebetween, exposing the underlying wall structure, the border members comprising a plurality of outer border members defining an outer periphery thereof, and a plurality of inner border members defining the plurality of voids, the outer border members and the inner border members interfacing at intersection regions, to in turn, provide a framework of a spreadsheet on a wall structure, with the wall structure exposed within the voids, and the voids are structurally sized so as to be usable as cells of a spreadsheet, with the border members forming the border of the cells.