Abstract A hollow structure is formed of thin sheets of material such as, for example, paper, paperboard or Gypsum with preformed openings in the sheets. The sheets are stacked in a programmed sequence to define a cavity of a predetermined shape within the interior of the article. The exterior edges of the sheets are also programmed in sequence to define the desired exterior surface for the article such as, for example, a simulated brick wall surface. By appropriately programming the sheets with interiorly disposed portions, it is possible to form and shape internal elements within the hollow cavity. The method of forming the article includes the bonding of the sheets such as, for example, by flooding the hollow cavity with the bonding agent and permitting penetration of the bonding agent into the stacked sheets.
A hollow structure comprising substantially flat sheets stacked face-to-face, said sheets having a depth dimension substantially less than a width or length dimension, exterior edges of said sheets being assembled to define facing walls for said wall structure, at least some of said sheets having performed openings, said preformed openings of adjacent sheets being programmed and assembled in sequence to define a predetermined contour for a cavity in said structure, said sheets being assembled to a height exceeding that of the width dimension of said sheets, and means bonding said sheets together to form said hollow structural wall, at least some of said sheets having grooves in the face of said sheet for conveying a liquid bonding agent outwardly from said preformed openings toward said facing walls for said wall structure.