Something that a reasonably smart person could overlook when buying a refrigerator online is to compare the measurements of the fridge to the measurements of the space in the kitchen where the fridge will go. If you are placing the refrigerator in a space between a wall and a cabinet, don’t forget to account for the amount of overhang on the countertop. I’m just saying.
If you do happen to make a mistake in your measurements (as a reasonably smart person could do) and you have a situation where the refrigerator is delivered but the workers won’t install the refrigerator because it is roughly 0.33 inches too wide for the space in the kitchen, you still have a couple of options. The sensible thing would be to refuse delivery and reorder a more appropriately sized model. Or you could try my method (via Cool Tools):