Shelving is another important consideration in retail design. It is recommended to put your best selling and most costly items at eye level.
Some companies may even give you better deals on product buys if you promise them key position on the shelf. You should also line up your products largest to smallest left to right, when there is more than one size of a product. The reasoning behind this is that people read left to right and look naturally to their left first.
By putting your larger items on the left you are more likely to have customers grab the bigger size, which makes you more sales. Empty space should be reduced as it wastes valuable space in your store and does not look good.
The space between shelves should just be a little more than is required for hands to take the product of the shelves. You should also ensure that your shelves are well stocked. If you have plenty of stock on hand you create confidence in the product and create more of a visual impact.