Once you have the Expandastore shelving components it is pretty easy to see how they fit together. The uprights are pushed up into the roof profile of the unit and then down into the floor to secure them in place. The arms can then be clipped onto the uprights with the up-stand at the front pointing upwards. The sump shelves can then be laid into the arms with the lip to the upside to prevent spills.
Here is a video explaining how it works:
The uprights and arms have changed slightly since the video was made but are fitted exactly the same way.
Go to: Expandsatore flat-pack Store main Page