Device for producing above ground open or closed structures

Device for producing aboveground open or closed structures comprising:

• flat panels formed by an assembly of stacked wooden plates, each plate of at least two adjacent plates of the stacked wooden plates of a first panel of the flat panels having a height greater than a thickness of the plate;
• a connection profile receiving vertical edges of the first panel of said flat panels for connecting the first panel to an adjacent panel in a linear or angular alignment, wherein the plates of at least the first panel are fitted with rigidity inserts between adjacent plates, the rigidity inserts comprising a metal profile having two parallel vertical flanges braced apart by a central support web, said metal profile being located between opposite-facing juxtaposed faces of the adjacent plates over an entire length of said plates, spacing between the flanges matching a thickness of the plates, and each of the vertical flanges of a rigidity insert located between the at least two adjacent plates having a height less than a height of an adjacent plate leaving a portion of a vertical side face of the plate, parallel and adjacent the vertical flange, exposed;
• and
• the connection profile having two overlapping parallel wings for gripping a section of the first panel, and having connecting shapes cooperating with matching shapes of an intermediate connector.