Each Supermarket floor plan has advantages and disadvantages, and each layout gives a retailer some control over traffic flow. Here, we'll look at a few different forms, the benefits and drawbacks for shoppers who encounter this type of layout, and some strategies retailers can use to increase sales conversions. This Supermarket floor plan layout is the most common store layout you'll see in retail. It is used in supermarkets, drug stores, and many big-box retail stores when a store carries many products (especially different varients of products) or when a retail location needs to maximize space. The grid format is so common in retail that it's been thoroughly researched, and retailers are well aware of it.