The phrase "entire aisle" refers to the complete area or space found between two rows of shelves in a store. It means the entire section of products that can be explored by walking along that space. Full definition
Once found only in small independent stores, today organic food products fill entire aisles at major supermarket chains. (fooddrink-magazine.com)
Gluten - free cooking can be very flavorful, and there are entire aisles in some natural food stores and grocery stores dedicated to gluten - free foods. (wondermomwannabe.com)
He even skips whole entire aisles without taking a peak. (mindbodygreen.com)