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Latches and Locks

Door thickness affects the fit of latches and locks. Window latches need to match the frame and the way the sash opens.

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About Latches and Locks products

A latch holds a door closed; a lock restricts access. That distinction matters when comparing latches and locks for an interior passage door or a secured room. The door latch hardware also needs to work with the handle that operates it, rather than being selected by finish alone. CiiLOCK Architectural Doorware by CiiLOCK Engineering is listed in this category; the specification should establish the required function before the visible details are settled.

Latches and Locks

Installation dimensions deserve a separate check for door latching hardware such as the listed CiiLOCK doorware. Backset is the distance from the door edge to the center of the operating spindle or cylinder; existing holes can limit replacement options. Ask for a dimensioned drawing before committing to a retrofit. Locking hardware on an exit route in the United States also needs to satisfy applicable egress requirements, which the architect or code official should confirm.

What should I check for a door latch with padlock?

Confirm that the latch is designed to accept the padlock’s shackle and that the lock body clears the frame throughout the door’s swing. Both components’ exposure ratings need to be checked for an exterior installation.

How do I choose a lockable door latch for a bathroom?

Look for a privacy function with an emergency release from outside. Verify how that release operates before specifying the hardware.

Why does a latch catch only when the door is lifted?

Inspect the hinges for loose screws or wear before moving the strike plate. Correct any sagging, then check that the latch engages fully without lifting or pushing the door.