#4 When you take the old door lock out does it fit in easily, do you use the old striker plate or does it come with one?
It comes with two stiker plates, one for square edge opening and one with rounded edge opening. It also has two locking assemblies, one for a single hole and one for the full size hole. It slide right in where the old door knob assembly comes out. For standard openings, there is no drilling or cutting or any woodwork needed at all. Again, it took me less than 20 mins to install.