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    How do I know if my door is secure enough?


    Is there a measurement system for the level of security offered by a door?

    Asked by Greg on 15th Jul 2021
    Share this question
    Kingston Bespoke Carpentry

    "Your insurance requires locks to be SECURED BY DESIGN this is a standard for locks covered by insurers. A minimum of one 5 lever mortise sash/deadlock or equivalent in multi-point lock for composite or pvc doors with the addition of anti snap and drill key barrel."

    Answered on 2nd Aug 2021 - Member since Jun 2021 - report

    "Door! Fitted securely with no rattle, hinges housed flush to
    hung edge,,!
    Leading edge, all round the Door with a slight bevel to comfortably clear closing free,
    especially the Hinges edge, so Door does Bind!
    All these suggestions will be my
    Security offered!"

    Answered on 2nd Aug 2021 - Member since Nov 2019 - report
    Peter Joinery

    "All doors have fire burning tines half hour or an hour, that's the time it would take for the flames to breach the door. Also the better the door and locks you use the more difficult to break into all about money. The more you spend on ironware locks hinges usually the better they are"

    Answered on 31st Aug 2021 - Member since Jun 2021 - report
    Dynamic Build It

    "Make sure it is fitted with a good security lock. A good yale lock is recommended."

    Answered on 27th Sep 2021 - Member since Feb 2018 - report
    K J Richards

    Most insurance companies will insist that a door has (at least) a 5 lever deadlock. A front door to a property will usually have a 5 lever deadlock, a cylinder night latch, a security chain, two bolts and a viewer. Some doors, like upvc and composite doors have a multipoint locking system that is very secure."

    Answered on 20th Jul 2021 - Member since Jun 2019 - report
    Perfect Construction

    "You need to check how the side of the door frames. Are they fixed properly? Also you need to check the gap between the lock and the door frame, if the gap is too wide you might have a security issue."

    Answered on 11th Oct 2021 - Member since Dec 2020 - report

    "Mortice lock

    These are the most common type for external timber doors. They are embedded (or ‘morticed’) into the door, rather than surface-mounted or clamped. The strike plate is fitted to the frame and a key is always needed to operate it.

    They can have anything from two to seven levers, increasing in security with every lever that is added. The higher the number of levers, the more difficult it is for intruders to pick, therefore making it harder to force open, enhancing security levels. It is recommended to have a minimum of a five-lever mortice lock and even better still to have one that is compliant to British Standard BS3621, as this will provide a longer bolt throw, anti-drill plates and a security curtain inside. Look out for the trademark BS kitemark on the faceplate to determine if your current locks are compliant with the standard.

    To take this further, there are commonly two types of mortice locks:

    Sashlocks work by using a lock, latch and a set of handles so that you can open and close the door without it locking behind you. You can lock the door by turning the key, but the built-in latch means it is also possible for the door to be held closed on the latch while remaining unlocked. This is useful for a number of reasons, not least of which it reduces the chances of a lock out.

    A deadlock can only be operated with a key and works with a single bolt locking mechanism meaning that when the door shuts behind you it is not possible to open it from the outside without a key. This is essentially a sashlock, without the latch, and may act as a good deterrent for thieves.
    Multi-point locking system

    These are most commonly used for composite and uPVC doors. A multi-point locking system has a minimum of three locking points, where pins, hook bolts or rollers sit at the top and bottom of the door followed by a latch in the middle. All three points lock simultaneously with the turn of a key as the multi-point locking system bolts the door into the frame, giving a high level of security."

    Answered on 20th Jul 2021 - Member since Mar 2019 - report

    "Have a professional come and look at the door ! And what the intentions of the door is for ! To how far you go with roughing the door and Frame"

    Answered on 20th Jul 2021 - Member since Jan 2020 - report

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