Abstract: A method forming, in a simple manner, corner joints or the like in structures, such as articles of furniture incorporating panels of chipboard. A typical corner joint is formed using a connecting member in the form of a length cut from an extrusion of constant cruciform cross-section. Adjacent edges of two panels defining the corner are secured in respective diagonally opposite channels of four V-section channels defined by the extrusion, one of the two remaining channels which faces outwardly from the corner being occupied by a filling member. The longitudinally extending edge faces of the two webs of the cruciform cross-section which extend outwardly may be flush with the adjoining outer surfaces of the panels and the filling member to present the appearance of inlays.