Comprehensive railing
system: a base profile (6, 106) having a base section (8, 108) with several through-openings (9, 109) for fasteners (10, 110), a first side (11, 111) with an outer bearing element (12, 112) and a second side (13, 113) with an outer positive locking element (14, 114), wherein the outer bearing element (12, 112) and the outer positive locking element (14, 114) are oriented in opposite lateral directions starting from the base section (8, 108), a mounting profile (7, 107) which can be detachably connected to the base profile (6, 106), wherein the mounting profile (7, 107) has a first side wall section (15, 115) with an inner bearing element (16, 116) which can be brought into positive engagement with the outer bearing element (12, 112) of the base profile (6, 106) by lateral
insertion, and a second side wall section (17, 117) with an inner positive locking element (18, 118) which can be brought into engagement with the outer positive locking element (14, 114) of the base profile (6, 106) by
lateral displacement of the mounting profile (7, 107) in the opposite direction, wherein, in the engagement state of the positive locking elements, a recess (19, 119) is formed between the base section (8, 108) of the base profile (6, 106) and the inner bearing element (16, 116) of the mounting profile (7, 107), and a locking element (20, 120) which can be inserted into the recess (19, 119) so that the mounting profile (7, 107) is secured against
lateral movement relative to the base profile (6, 106).