The present invention concerns a frame member (10), a frame formed from the frame member (10) and a panel including the frame for use in a cladding assembly for cladding a structure. The frame member (10) of the present invention is adapted to be joined together with other frame members (10) to form the frame, each frame member (10) includes at least four walls including an inner frame wall (11), an opposed outer frame wall (12), a panel abutting wall (13) and an opposed structure abutting wall (14) having a free end (15) with an outer edge protrusion (16). A receiving opening (19) is defined between a portion of the outer frame wall (12) and the outer edge protrusion (16) for receiving one or more fasteners which engage the outer edge protrusion (16) for, in use, fastening the frame member (10) and thereby the frame and preformed panel to the structure.