GUIDES
Choosing, fitting and maintaining door hardware
Straight answers to the questions that come up before and after a door closer or floor spring is specified, written against the same specifications our products are built to.
Choosing & Sizing
Matching a door closer or floor spring to door weight, width and traffic.
How to measure a door before choosing a closer
Most wrong closers are ordered off a guess at the door. Five measurements remove the guesswork, and none of them need special tools.
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What size door closer do I need? EN power sizes explained
Every door closer is sized against two numbers: how wide the door leaf is and how much it weighs. The EN power size scale puts both on one axis.
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Floor spring or door closer? How to choose between them
Both control how a door closes, but they solve different problems. The deciding factors are usually the door material, the weight and whether anything can be seen.
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Surface-mounted vs concealed door closers
The mechanism is much the same. What changes is where it lives, and that affects installation, servicing and what the finished door looks like.
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Standards & Certification
EN power sizes, IS 3564, BIS/ISI marking and what cycle testing means.
Installation & Adjustment
Mounting options, and setting closing and latching speed correctly.
Seven door closer installation mistakes and how to avoid them
A closer fitted to the wrong fixing, on the wrong side, or set to the wrong force will fail long before its cycle rating says it should.
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How to adjust a door closer: closing speed and latching speed
Most doors that slam or fail to latch do not need a new closer. They need a quarter turn on the right valve.
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Troubleshooting & Maintenance
Diagnosing a closer that slams, drifts, leaks or fails to latch.
How long does a door closer last?
The honest answer is that it depends entirely on how often the door moves, which is why closers are rated in cycles rather than years.
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Door closer problems: slamming, not latching, drifting and leaks
Most reported closer faults are one of five symptoms. Only one of them genuinely needs a new unit.
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Buying & Specifying
What drives cost, what to ask a supplier, and how to compare quotes.
Applications by Building Type
What suits glass shopfronts, hotels, hospitals, offices and homes.
Hardware for frameless glass doors: what a shopfront needs
A glass shopfront door has no frame and no leaf to fix into, which rules out most door hardware before you start. This is what is left.
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Specifying door closers for high-traffic entrances
On a busy entrance, durability and opening force stop being footnotes and become the specification.
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