A:Answer Hi Linda, since this unit is an Over the Range Hood as well as a Microwave, it will need to be installed over a cooktop or range. That being said, if you are looking to completely "house" a Microwave including the underside, for a built in look, we suggest going with one of our countertop Microwave models with a trim kit. We have linked one here for you to look at: Model WMC30516HZ https://bit.ly/3ybj5oO You can purchase 27" (MK2167AZ) and 30" (MK2160AZ) trim kits to give it a built in look. Please don't hesitate to reach out to us for direct assistance if you have any further questions or concerns. Whirlpool 866-698-2538 M-F 8 AM to 6 PM ET