A:Answer Hi there, and thanks for reaching out to us about this range hood! We appreciate your interest and understand how important fitting the range hood into your existing space is; we can advise the dimensions of this model are 9 7/8" H x 36" W x 18 1/2" D. There is a needed clearance between the range hood and the range beneath of at least 24”, but there shouldn’t be more than 38” between them to ensure proper ventilation. Further information regarding dimensions and installation are available in the installation instructions; if you need to review this, that is available on our GE website by searching for the model number, choosing the product and clicking ‘Owner Support’ on the product page. We hope this information is helpful, and are glad to help with any other questions or concerns. All the best! -Sarah@GEA