TurboLock TL111WM 17
Part 4 - Creating a Mortise & Installing the Strike
Step 1.
Push the door until nearly closed and check where the latch’s bolt touches the frame.
Step 2.
Use a pencil to mark the horizontal center of the latch on the door frame.
(Fig. 15)
Step 3.
Open the door again and extend the line over the edge of the door and inside the frame.
Step 4.
Measure the inside of the frame. Determine and mark the halfway point. From this point,
use a ruler to draw a line straight down so that it intersects the existing line.
(Fig. 16)
Step 5.
Use a 7/8” (22.2mm) spade bit and a drill to make two partially overlapping holes about
0.6” (15mm) deep centered both above and below the center line. If needed, use the
chisel to make the hollow (aka “mortise”) more square. If you choose to use the strike
box, you may need to chisel slightly deeper.
(Fig. 17)
If using a spade bit, do not drill at high speeds as this may tear out extra wood and/or damage
the door or doorframe.
Step 6.
Hold the strike plate over the mortise. Using a pencil, mark a line around the edges of
plate to use as a guide. After marking at the straight edges of the plate, remove the plate.
Step 7.
Chisel about 1.5mm deep or until strike plate sits flush with door frame. If you choose to
use the strike box, you may need to chisel slightly deeper.
During chiseling, it’s highly recommended to stop and check to see if the strike plate sits flush
in the doorframe over the strike box. If not, chisel a little more and check again. Be careful not
to chisel too deep otherwise the lock may not function correctly after installation.
2
3/4
” 2
3/8
”
(Fig. 15)
(Fig. 16)
(Fig. 17)
