@ A storage hopper or silo for plastics bottles comprises an upright container hexagonal in plan view and adapted to be supported above ground level. A central column hexagonal in plan view extends the height of the container, and a helically-extending deck or runway of predetermined pitch bridges the container wall and central column. The deck or runway is constituted by a series of butting or overlapping differentially-angled steps defining a descending path for the plastics bottles. The helical deck or runway may be single or multiple start. The storage hopper is preferably or modular construction with its walls being clipped together and its deck or runway sectioned into steps and clipped into ledges on the walls and central column.