Where I grew up in the US, most major grocery stores follow a similar floor plan. The produce section is usually near the entrance, the dry goods and pantry items are in aisles in the middle, and the deli, dairy, and frozen sections are located around the perimeter.
Grocery stores in the UK are much less predictable, at least to my American intuition.
Dairy, meat, and even frozen food might be stocked right in the middle of the store in refrigerated aisles. The produce section is sometimes in the back of the store or even running through the middle.
Bread might be stocked in several different locations, depending on whether it was baked fresh by the store that day, is gluten-free, or is just the sliced and prepackaged kind.
Since eggs are unrefrigerated in the UK, I've found they could be located anywhere in the store, from the baking aisle to the canned-goods section.
Additionally, US supermarkets usually have produce stacked in appealing piles and arranged neatly on shelves. In the UK, fruits and vegetables are often displayed in the plastic crates they were shipped in.