This Built-In Low Profile Microwave Standard Trim Kit, Stainless Steel Makes It Easy To Refresh And Free Up Space In Your New Kitchen Or Kitchen Remodel By Converting Your Standard Countertop Microwave Into A Built-In Model. This Kit Fits The Standard 17-1/2" Cutout Height And Includes All Hardware Needed For Standard Installation. Complete Product Dimenstion Are 32.5"L X 21.5"W X 5"D. Installing This Accessory Will Require Basic Hand Tools And Novice Repair Experience. You Must Unplug The Microwave Or Shut Off The House Circuit Breaker For The Appliance Before Installing This Part.