A:Answer Hello. We appreciate your interest in a trim kit for this model – we know creating a built-in look for your microwave can be important. Unfortunately, model JES1145SHSS was designed specifically to be a countertop microwave; it is not able to be converted to a built-in model, and does not have a trim kit. We apologize for any inconvenience that may cause. We do have several other microwaves that are built-in capable, however. If you search your dealer website or our GE website with the term ‘built-in microwave’, you can see the options that are available to be converted to built-in using a trim kit. We hope this helps to clarify the matter, and we’re happy to assist if you have any other concerns or questions. Best wishes! -Sarah@GEA