09/10/2026
Multipoint Lock Cylinder and Handle Compatibility Guide: Centres, Spindle, Cam and Deadlocking Sequence TL;DR A multipoint lock, cylinder and handle…
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09/10/2026
Panic Bar Dogging Function Guide: Mechanical Hold-Open, Cylinder Control and Fire-Door Boundaries TL;DR Dogging is a hold-open or latch-retracted operating…
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09/10/2026
Electronic Mortise Lock Monitoring Guide: Door Position, Latch, Deadbolt and REX Signals TL;DR Door position, latch status, deadbolt position and…
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09/10/2026
Automatic Multipoint Lock Troubleshooting Guide: Trigger, Keeps, Compression and Lock-Point Alignment TL;DR When an automatic multipoint lock does not project…
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09/10/2026
Panic Bar Door Preparation Guide: Device Height, Strike, Reinforcement and Outside Trim Coordination TL;DR Do not machine a door from…
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09/08/2026
Electronic Mortise Lock Power-Loss Guide: Fail-Safe, Fail-Secure and Monitoring TL;DR Fail-safe and fail-secure describe the intended state of a controlled…
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09/08/2026
Multi Point Door Lock Replacement Guide: Measure Centres, Backset, Faceplate and Lock Points TL;DR A reliable multi point door lock…
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09/08/2026
Panic Exit Device Outside Trim Guide: Cylinder, Lever, Pull and Re-entry Planning TL;DR The inside push bar must preserve the…
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09/07/2026
Access Control Door Hardware Guide: Lock, Power, Controller and Door Interfaces TL;DR Access control door hardware must be scheduled as…
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09/07/2026
3 Point Locking System Guide: Automatic, Lift-to-Lock and Key-Operated Functions TL;DR An automatic 3 point locking system projects its locking…
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