Frigidaire Gallery 27" Electric Wall Oven/Microwave Combination

Measure your existing unit; wall ovens typically come in a few common widths. For most models, however, that measurement includes a trim ring that overlaps the surrounding wall or cabinet. The part that sits inside your wall varies in size from model to model. To get the right fit, you'll need to measure the dimensions of your existing unit and the space in your wall where your new appliance will sit. Begin by measuring your existing oven. Measure the height from top to bottom, depth from front to back edge, and width of the widest section from left to right. Measure your space: you’ll need to remove your existing wall oven to measure the inside of the cabinet. Unplug the unit, turn off any gas, then measure the inside of the cabinet opening. Measure the height from top to bottom, depth from back to front, and width from side to side using the narrowest point for each measurement.