Q: I have a wooden entry door with a locking handle, but no deadbolt. I want to install one to make the door more secure. How do I do this? A: Having a door without a deadbolt is like mashed potatoes ...

Measure the width and height of your old door along each side to determine its position. Also, measure the positions of the hinges, strike plate, and handle/deadbolt boreholes. Round the longest ...