A door knob is the only way to get into rooms like the bedroom, bathroom-even your home. They all require knobs to enter, close and lock a door for privacy. Without door knobs, our homes and bedrooms would be like open barn doors, swinging in the wind. If you’ve never installed a door knob before, or if you’re a seasoned pro who needs a little refresher course, this tutorial on door knob installation basics will help you install any door knob correctly.
Before you begin any door knob installation project, you’ll need to measure the door thickness. While nearly every door built today and in the last 20 years has a nominal thickness of 1 ¾”, antique and special order doors may be of another thickness (or thinness).
The backset measurement is the measurement from the front edge of the door to the center of the hole drilled for the knob. Again this is often a nominal distance of 2 ½” but varies from door to door. Most locksets come with adjustable backsets from 2 3/8″ to 2 ¾”.
Unless you’re planning to drill out the holes on a blank door slab, you won’t need many tools. A simple Phillips head screwdriver and a utility knife to cut open the packaging are all you will need for a basic door knob installation.
If you are planning to drill out the hole in a bank door slab, then you’ll need two hole saws for the knob and one for the backset and a ½” drill. Use the provided template to determine proper spacing for the holes.
The simplest of door knobs are non-locking/functional door sets. These are typically used in closets and other utilitarian access doors.
Begin by attaching the backset into the face of the door with the two provided short screws.
Next place the two knobs together on each side of the knob hole cutout. A bar in each of the handles fits into the hole in the backset cylinder. Slide the two bars together until the fit snug. Turn the knob to see if the backset cylinder moves.
If it does, your set to use the two provided long screws to secure the door knob together. Don’t over tighten them or the latch will stick; hand tight will do the trick. Put on the striker plate with the two provided little woodscrews to finish the job.
A locking knob goes on just like a non-locking knob, except the two bars that fit together have to meet perfectly or the lock won’t stay. This can be done easily by slowly turning the lock and pressing gently together on the knobs at the same time. When the lock lines up with the opposing pin, the tow knobs will instantly pop together. Give it a test lock and attach the hardware together with the provided screws.