Maximise your storage space and expand the Mix shelving system by using one or more add-on sections. It is easy to add extra units to the basic section by attaching the add-on shelves to one end of the basic section. You can also easily supplement the add-on section with accessories that match your storage needs. The add-on section comes with six shelves. You decide how tightly the shelves should sit and it is very easy to move them up or down at 50 mm intervals. Just mount them at any height - without tools. Each shelf has a maximum load capacity of 150 kg evenly distributed. The end uprights have feet for bolting to the floor.