Tag: singe point of failure

The Euro Profile

I had a little rant about uPVC doors a few posts back. Well I don’t much like the cylinder that often goes with it, the euro-profile cylinder. When lever locks wanted to be operable from both sides, the clever engineers

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Multi-point locking

The typical, traditional, external door originally had a simple surface mounted deadbolt lock with probably only one or two levers and/or a nightlatch: a “Yale”. (And when I was a lad the door was only locked if you went away

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