SunWolf window well covers are built with a hinge mount which covers about 5” of height measuring from the top of your window well to the top of your basement egress window. Should this be a close measurement, or if you know it will exceed 5”, you may need a custom cover solution for your home. If you're questioning a measurement or the exact fit, please don’t hesitate to call us at 1-866-678-6738 or get in touch via our Contact Form.