Panasonic 27-Inch Trim Kit for 1.6 cuft Panasonic Stainless Microwave Ovens, TK-729SA 27-Inch Wall Installation for all 1.6 Panasonic Stainless Steel Microwaves 27-Inch W by 16 1/2-Inch H Outside Dimensions and 23 1/4-Inch W by 11 3/8-Inch H Inside Dimensions Cabinet Cut-out is 24 7/8-Inch W by 15 5/16-Inch H by 21-Inch D Models include NN-SD762S, NN-SD797S, NN-SE782S and all Panasonic 1.6 stainless steel models Installation required, all parts included for easy installation