A standard mortise pocket is 1” wide by 6-1/2” high by 4-1/8” deep. This size will work for most Emtek and Baldwin mortise locks. If any other sizes are necessary, a template must be provided to properly cut the pocket for the lock. Some mortise locks are more involved and should be considered a field installation. The strike prep should be completed in the fieldto ensure the best placement.
An additional note: Fiber-Classic, Smooth-Star, Profiles, and Traditions doors will not prep well for a 1-1/8” mortise lock. Due to the bullnose, the edge protrudes and gives an unpleasing look. The edge prep shouldn’t exceed 1” on these doors.
A 1-1/8″ prep on a Smooth-Star door