Abstract: A structure for the creation of room dividing walls or for the lining of pre-existing walls, particularly for operating theatres and the like, comprising upright members (2), independent of one another, each made integral with the ceiling and the floor by appropriate means of anchoring (3, 4), equipped with means of height adjustment (4), to such uprights there being made integral stiffening cross members (5) and front lining panels (6, 206) adjacent to one another, there being furthermore provided means (7) for centering and means (8) for fixing such panels to uprights (2) as well as sealing members (15) for spaces (206a) made in the thickness of panels (206) to accommodate service equipment.