Abstract: The invention concerns a building door consisting of several panels (5) guided along a curvilinear guide rail such that said panels remain more or less parallel to the rail and mutually articulated about hinge pins (10) parallel to their longitudinal edges through pivoting elements (9). The invention is characterized in that the panels (5) are provided at their longitudinal edges with male and female anti-finger catching complementary profiles, and in that the hinge pins (10) of the pivoting elements (9) are at least more or less coplanar to the inner walls (6) of the panels (5) whereto they are articulated and in that the pivoting elements (9) are linked to the transverse edges of the panels (5). Said door is simple, aesthetic and its structure enables prevention of accidents caused by pinching, in particular finger catching.