The truss adopts the rational configuration of the non-deformable triangle, optimizing the exploitation of the wooden members’ resistance resources. It is an extremely efficient structural typology that has gone through the centuries in its almost primitive configuration without substantial modifications, for which finding comparisons in the history of construction is difficult. But when was the truss born? This is the first general-interest book to address this question.

Using scant but precious ancient literary documentation, the archaeological finds and the iconography of the...