A machine for raising planar articles (2), preferably made of cardboard, corrugated cardboard or plastics, in order to manufacture box-shaped or crate-shaped packaging. The machine comprises at least one main conveyor (16) for advancing the planar articles (2) one at a time and side forming means (8) for turning the side panels (5b) of the articles predominantly 90° upwards with respect to the bottom panel (4) of the article (2). Moreover, the machine is provided with transversely arranged end forming means (15) for turning the end panels (6a, 6b) of the articles substantially 90° upwards and optionally also turning the end portions (5b′, 5b″) of the side panels (5b) substantially 90° with respect to the remaining portion of the side panels. Finally, there are joining means (12, 20) for joining the side panels (5a, 5b) and the end panels (6a, 6b) of the articles. This provides a machine requiring less space than the known one but remaining very reliable.