Abstract: A technical solution provides a graphical user interface display that increases completeness and accuracy of determining values for installation parameters needed to install one or more garage doors and related equipment in different garage door (GD) installation environments where different types of GD installations use different combinations of installation parameters. Displays of different GD installation environments (e.g., single or multiple doors) with and without obstructions are generated using a graphical user interface with different parameter indicators generated in sequence according to GD installation type to determine values of GD installation parameters needed to improve accuracy of GD installation designs.