A removable wall skirting system is disclosed. In a wall structure where an interior wall cladding (30) is carried by a frame and in which a gap (50) is provided between a bottom edge of the cladding and a bottom wall frame member (10) of the frame, the removable wall skirting system covers this gap (50) but allows easier detection of termite activity within the wall structure. Various means of removably attaching the wall skirting are disclosed including magnetic coupling (44,46), clips (47), and rail (70) and slot (72).