Shelving Material Choices - Looking for input

I have recently installed some twinslot shelving in total 5 one meter length uprights at a spacing of 600mm centres

In this film I install some twin slot rail and bracket shelving in the garage Fitting it around the up

twin slot shelving accessories 2 The spacing between the uprights is also important to help support more weight

twin spin deluxe slot Shelf depths 150, 220, 270, 320, 370, 470 and 610mm deep Steel shelves for wall mounted twinslot shelving periodical magazine angle brackets and shelves Spur