How to Install a Lockset in a Door
The keys to a successful installation are careful layout and sharp tools.
Unlike old-fashioned and complicated mortise locks, most of the locksets you see these days are of the cylindrical variety and are fairly easy to install. Basically, installation requires a large hole drilled through the face of the door and a smaller hole drilled through the edge. After the holes are drilled, the most difficult part of the job is cutting the mortises for the strike and latch plates.
There are two keys to a successful installation: careful layout and sharp tools. In addition to a tape measure, a combination square, and a hammer, you’ll need a scratch awl, a 21/8-in. hole saw, a 15/16-in. spade bit, and a 1-in. chisel. Assembling the lockset varies slightly from brand to brand, so it’s important to read the manufacturer’s instructions.
Steady The Door, Then Drill The Large And Small Holes
|Step 2: Pilot holes pave the way for the big bits. To make sure the holes for the cylinders start in the right place and don’t wander, use a scratch awl to punch the precise starting points. Then drill pilot holes with a 1/8-in. bit in the edge and in both faces of the door.|
|Step 9: Cut the strike mortise following the same procedure used for the latch plate.|
A Jig For Foolproof Hole Alignment
Carpenters who install door hardware for a living use commercial boring jigs that get the job done quickly and accurately. You can buy a light-duty version of the $250 jig for about $15.
Made by Black & Decker (www.blackanddecker.com), this plastic jig clamps onto a door edge and aligns the face and edge holes automatically. Two hole saws (21/8 in. and 1 in. dia.) and a common mandrel are included in the kit. The jig will handle both 2 3/8-in. and 2 3/4-in. backsets.
Photos by: Charles Bickford