There is disclosed a telescopic mast including one or more telescopic members with parallel walls. One of two adjacent telescoping sections is narrower than the other of the two adjacent telescoping sections such that a telescoping section can be moved into and out of, respectively, of a surrounding telescoping section in a telescopic member. This surrounding telescoping section can be moved into and out of a further telescoping section in a further telescopic member. In the one telescoping section in a telescopic member there is provided a guide rail running in axial direction of the telescoping section. Between each of two adjacent telescoping sections in a telescopic member there is provided at least one spacer means arranged for keeping the telescoping sections apart and controlling their mutual movement. This means includes a mounting fitting fastened to the second telescoping section in a telescopic member and a flexible sleeve mounted in the mounting fitting. In the flexible sleeve is fitted a slide shoe that includes a pin for engaging the flexible sleeve, and a groove arranged for engaging the guide rail.