Frame Preparation for Strike
LHR shown
RHR opposite
Strike
backbox
assembly
1-21/32”
minimum clearance
4-1/8”
5/8”
2” minimum
clearance
12” minimum
clearance
C strike
L
1-1/4”
11/32” max.
3/8”
4-1/8”
3-3/8”
4-7/8”
1-15/32”
5/8”
3/4”
C lock and strike
L
C strike
L
Suggested
cutout
3/16” rad.
4 places
#16 drill and #12-24 tap
2 places
Reinforce for strike
attachment as required
1-1/4”
1-1/4”
4-7/8”
1-1/8”
2-7/16”
2-1/16”
3-3/8”
1-11/16”
1/8”
6”
Strike Dimensions and Required Clearances
