A:Answer The cutout dimensions of the Jennair website are correct except for one thing. That only accounts for the box, The unit has hex screws on the side the protrude about 1/4 inche on all sides. So you will need to make the hole slighlty biggeror account for that when you install the unit into a counter. Ours fit snuggly in the 30 inch kitchen cabinet that we have, but the hole in the countertop had to be notched bigger where the screws went for the unit to fit.