News
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, by United Doors and Locks What We Need to Key Your Job
Keying is the last decision made on a project and the first thing to hold up handover. The five inputs we need to build your...
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, by United Doors and Locks IC Cores and Keyways: What "IC Available" Means on a Spec Sheet
An interchangeable core swaps out in thirty seconds with a control key. What SFIC and LFIC mean, why locks ship without cores, and why the...
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, by United Doors and Locks Lock Functions Explained: Passage, Privacy, Entrance, Office, Storeroom, Classroom
Function is what the lock does, not how it is built. Passage, privacy, entrance, storeroom and classroom, with the ANSI numbers and where each belongs.
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, by United Doors and Locks Backset Explained: Why 2-3/8" and 2-3/4" Are Not Interchangeable
Backset is the distance from the door edge to the centre of the bore. Get it wrong and the latch will not reach the strike....
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, by United Doors and Locks Cylindrical vs Mortise Locks: Which Commercial Lock Is Right?
A cylindrical lock is carried between two roses; a mortise lock sits in a pocket in the door edge. How that changes cost, durability, functions...
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, by United Doors and Locks Grade 1 vs Grade 2 Commercial Door Hardware: What the Cycle Counts Actually Buy You
ANSI/BHMA grades are cycle-test results, not marketing tiers. Here is what Grade 1, 2 and 3 mean in years of service, and where each belongs.
