Home Depot Customer - Thank you for reaching out. Home Depot and Clopay truly appreciate their customers. You responded on a Garage Door Low Headroom Conversion Kit but that does have its own instructions that are sent. if you are referring to the Clopay Garage Doors, our doors are sent with the appropriate installation manual. We have an installation manual for Residential Insulated Steel Doors and also another installation manual for the Residential 1 layer and 2 layer doors. In each of these manuals, the pages provide step to step instructions on how to install the door, and headings on those pages clearly marked for which model type. Any questions when installing, Clopay has an install tech team you can contact at 800-225-6729, option 4, Monday - Friday, 8 am - 5 pm EST. Thanks! The Clopay Team