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Mortice Locks for Smart Locks

Mortice Locks for Smart Locks

The mortice body is the mechanism inside the door that the smart escutcheon actually drives. Get the case size, backset and function wrong and the smart furniture will not operate it, regardless of how well the escutcheon fits the face of the door.

Case typesCase types

Case type Application Bolt action
Hinged door mortice Standard swinging doors, timber or aluminium Latch plus deadbolt, driven by spindle and cylinder
Hook bolt mortice Sliding doors and sliding screens Hook rotates into a keep on the fixed jamb
Narrow stile mortice Aluminium doors with stiles under about 50 mm Compact case, reduced backset
Rebated door mortice Double doors with a rebated meeting stile Requires a matched rebate kit

Dimensions that must matchDimensions that must match

  • Backset - door edge to spindle centre. Residential is commonly 60 mm; narrow stile cases run much shorter.
  • Case size - overall body dimensions, often quoted as a code such as 6068 or 5085.
  • Faceplate - length, width and whether it is square or radius ended.
  • Spindle - split or through spindle, and the square drive size.
  • Cylinder position - the distance from spindle centre to cylinder centre.
  • Function - entrance, passage, privacy or storeroom behaviour, which determines what happens on each side.
Note
ANSI function codes describe what the lock does rather than its size. F05 and F54 are frequently confused and are not interchangeable. F05 and F54 compared.

Related categoriesRelated categories

Rebate Kits and Strikes · Tubular Latches and Bolts · Door with Narrow Frame · Glass Sliding Doors

Common questionsCommon questions

Question
Can I reuse the existing mortice body?
Sometimes, if the backset, spindle and cylinder positions match what the smart escutcheon expects. More often the smart lock is supplied with, or requires, a specific case.
Question
What is the difference between F05 and F54?
They are different ANSI functions with different behaviour on the inside and outside of the door, and different fire door implications. The full comparison.
Question
Does the mortice body affect fire compliance?
Yes. On a fire door the entire assembly including the mortice body has to be part of the certified configuration. Ch 05 - Fire door smart locks.

Guides and referenceGuides and reference

F05 versus F54 mortice locks · Ch 01 - Mortice deadbolts · Ch 02 - Mortice hardware

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