Note: For prepped doors with pre-drilled 2-1/8” bore, the Adaptor for Pre-Drilled Door and a rosette that is 2-5/8” diameter or larger are both required. Full dummy function (with or without door prep) requires the separate purchase of a spindle: 3½" Spindle for 1-3/8" door thickness and 4" Spindle for 1¾" door thickness. For full dummy installations on prepped doors, the Dummy Insert for Pre-Drilled Doors is also required. See required components to purchase.
Knowing the type of door knob will help determine how the door will function upon installation.
|Door Knob Type||Dummy Doorknobs|