How should I measure my space before installing the RF28NDEDBSG refrigerator?

Measure the height, width, and depth of the opening, making sure to include baseboards, molding, tile, countertop overhang, and similar features. You should also check that there is enough room to fully open the doors, taking into account walls, islands, or other obstacles. Additionally, ensure each door and entryway in the home is wide enough for the refrigerator to be moved through easily. (Page 2)