Wooden opening door frame

摘要

The wooden frame has a listel (3) on the internal face of the uprights and top cross-member which is positioned in a groove (2) in the door frame (1). It is fixed to the frame by a concealed fixing. The groove has a longitudinal cavity (4) in which the listel is fitted.The listel has an extension in the form of a fir tree tail which is inserted in the groove longitudinal cavity. There is a complementary part in the shape of a double fir tree tail (7) which is fitted from the side in the longitudinal cavity in the groove and in a homologous cavity on the length of the listel in its face.