How to Install a Door Lockset | A Straightforward Sequence

Installing a door lockset is a straightforward DIY task once you understand the order of operations. The most common mistake isn’t mechanical—it’s installing everything, closing the door, and realizing the latch doesn’t align. The entire process boils down to removing the old hardware, prepping the door, and mounting the new pieces in the right sequence.

Removing the Old Lockset

Your first job is clearing the door. Remove the screws holding the interior trim plate, then pull that plate and the exterior assembly away from the door. The latch bolt—the angled piece that slides into the door frame—comes out next, usually by unscrewing its two faceplate screws on the door’s edge.

If the old latch won’t budge, check for a hidden screw under a snap-on cover plate. Some trims use hidden screws; for those, Schlage notes that the UL cup must be reinstalled immediately after removing the first screws to avoid losing track of small parts.

Checking the Door Prep and Backset

Before mounting anything, confirm your door is cut for the lock you bought. Most residential doors use a 2-1/8″ diameter bore hole for the main lock body and a 1-1/2″ hole on the edge for the latch. Standard backsets—the distance from the door edge to the center of the bore hole—are 2 3/8″ or 2 3/4″.

Measure yours before you buy; most new locksets include an adjustable latch that fits both backsets, but verifying saves a trip. The latch face must sit flush against the door hole, and the latch bolt should face the door frame—not the room interior.

Installing the Latch and Strike Plate

Insert the latch into the door edge with the angled bolt facing the door jamb. Slide it in until the faceplate sits flush against the wood, then drive in the two screws. Test the latch by pressing the bolt in and letting it spring back; if it sticks, loosen the screws slightly and re-tighten them evenly.

Next, close the door and mark where the latch bolt touches the frame. Remove the door, line up the strike plate on that mark, and trace its outline. Chisel a shallow recess so the plate sits flush—this matters for the deadbolt to fully engage. Screw the strike plate into place, then test that the latch slides into the hole cleanly.

Mounting the Lockset and Testing

Now the main event. Slide the exterior assembly’s spindle through the bore hole from the outside, then align the interior assembly over the mounting posts and secure the screws. Tighten evenly; stripping a screw or overtightening warps the plate and binds the mechanism.

For keypad and smart locks, the wiring order matters. Schlage’s keypad instructions specify this sequence: install the latch first, mount the strike on the jamb, prepare the keypad, then attach the interior assembly and connect the wiring. Tuck wires into the cavity so they are not pinched by the cover. Install batteries only after the lock is fully mounted—not before.

With everything assembled, leave the door open and test. Turn the thumb piece or key: the latch should slide smoothly. If it catches, adjust the screws and check the strike alignment before declaring victory. Only when the mechanism is smooth should you close the door for a final test.

If you’re weighing options before you start, our tested door lockset recommendations based on real-world use break down the models that hold up best.