Shelving Material Choices - Looking for input

Strong black bracket suitable for supporting timber shelves Bracket connects into both slots of a twin upright VAT Registered in Rep of Ireland? Bespoke

idea of what i needing the shelving to support I too have used 18mm plywood, all be it Birch for shelving in work using the twin slot

twin slot shelf bracket Our Twin slot shelving is easy to install and highly customisable making it ideal for home use The shelves can be set to any height allowing you to store

twin33 slot Twin Slot Shelving and Accessories Our Twin Slot System has an industry standard 32mm pitch Twin Slot uprights are available in a choice of three finishes;