The highest converting position on a shelf is between the height of a customer’s head and hands. Ideally, the main products should be merchandised between 0.5 metres and 1.6 metres above the floor. Unless you are targeting children, in which case the ideal height is between 0.3 and 0.9 metres. You will notice that many supermarkets use this trick for the sweets and then place the larger chocolate bars higher up. This is because they are trying to attract children’s attention to the sweets. This then encourages the children to sell the sweets to their parents.