This sentence suggests that someone has completed the installation of doors and is now in need of knobs and catches to finish the project.
Without any further context, it is difficult to determine what type of doors these are or where they are being installed. It is also unclear whether the person speaking is the one who installed the doors or if they are simply a supervisor checking the progress of the project.
If more information were provided, such as the location of the doors and the materials used, a more comprehensive summary could be created.