Fridge side: top shelves are 17"w x 18"d, bottom shelves with drawers are 18"w x 18"d
Freezer side: top shelves are 13"w x 16"d, bottom shelves with drawers are 13"w x 17"
Love this refrigerator, larger than most and I didn't want the French freezer drawer option, too much bending over and also harder to organize. The ice maker is on the door so you don't lose freezer space.