Beneteau should be able to help you out, absolutely. Also the manufacturer of the hatch, of which there are many including Bowmar, Lewmar as a couple of the biggies, can tell you all the specifications if you give them the serial number. An email to either will get you this information in pretty quick order. This info may come in handy if you would like to get a local business to make them up for you.just not sure if I have a low or medium profile hatch