Abstract: Construction system for shelves comprising shelves and rear panelling plates, and in which the shelves at their rear end are insertable in upright or wall mounted consoles from which the shelves are cantilevered. The consoles are hidden behind the vertically extending rear panelling plates which are mounted horizontally spaced from the uprights or from the wall. Each console constitutes a horizontally mounted profile support rail for continuously supporting at least one shelf along its rear edge engaging its top side and its bottom side along rear edge zones of which the top side edge zone is closer to the rear edge of the shelf than the bottom side edge zone.