KPSG Doors are manufactured as either Flushmount or with a standard 1-5/8" Offset

K55 Latches using a "Flushmount" Strike can be used on any door with an offset range of Flush to 3/16"

K55 Latches using an "Offset" Strike can be used on any door with an offset range of 1-1/8" to 1-5/8"