More Secure Doors: Multipoint Locking

Author: Brian Rhodes, Published on Oct 27, 2014

Doors are notoriously weak at stopping entry.

A closed and locked door might deter entry for a typical wandering person, but breaking in is still easy, essentially taking a prybar and a few seconds. In the firefighter training video below, busting open a door secured by a single lock takes less than 30 seconds:

 

The key to beefing up door security typically involves multiple locks or latching points. For every lock that's added, more time is needed to overcome it, slowing criminals down. If the right multipoint latches are used, then simple exploits are very difficult.

In this note, we examine multipoint latching, and how it typically is deployed to still be code compliant, yet increase the toughness of doors.

***** *** *********** **** ** ******** *****.

* ****** *** ****** **** ***** ***** ***** *** * typical ********* ******, *** ******** ** ** ***** ****, ***************** * ****** *** * *** *******. ** *** *********** ******** ***** *****, busting **** * **** ******* ** * ****** **** ***** **** than ** *******:

 

*** *** ** ******* ** **** ******** ********* ******** ******** locks ** ******** ******. *** ***** **** ****'* *****, **** time ** ****** ** ******** **, ******* ********* ****. ** the ***** ********** ******* *** ****, **** ****** ******** *** very *********.

** **** ****, ** ******* ********** ********, *** *** ** typically ** ******** ** ***** ** **** *********, *** ******** the ********* ** *****.

[***************]

Latching *******

******* * **** ******* ** * **** ****** ******. "********" involves * ******* ** *** **** **** ** **** ********* or ******** **** *** ******** **** *****. ************ *** ********* is ******, *** ******** ***** *** ** ***** ******* *******, unlatching * **** **** *** ******** ***** ** *** **** is ****** ** ******** ** *** *******. *** ***** ***** below ***** *** ***** *******; ******** *** **** ***** ** key ***** *** ***** **** ** *** ** *** ****** plate:

******* *********** *** ********** ***** **** *** **** ***.  ******* ** swinging * **** *****, * ****** ****** ***** **** **** a **** ** *** ***** (*******).

More ******* *** ******

** *******, * ****** ***** ** ****** ********. ********* ** brute *****, *** ****** ******** ***** *** **** ****** ** much ******** ****** ****** ** ** ****** ** *** ***** itself ** ***********.

** ******** **** ********, **** ***** ****** ******** *******. ******* of * ****** ***** ******** * **** **** * *****, doors **** *****, ****, ** **** **** ******* **** ******** on *** ***** **** *** ***** *********** ** *******.

***** ********* ***** ******* *** ***** ** ********, ** ***** more **** *** ***** ***** ** ***** **** ***. ***** the ******** *** **** *** **** ************ ** ******** ******* latches, ** ** * ****** ****** ** ********* **** ********.

Many ******* *********

*******, **** *** *********** ** ***** **, ***** ** ********* takes ******* *************. ****** ******** ***** ******* **** ** **** than *** ****** ******/******* * ****, ********** ** *** **** are ******** **. 

*** **** ****** **** ******** ********** **** ** **** *** (2009):

*.*.*.*.** ***** **** ****** *** ******** ** * ***** ** ******, one ** *** ********* ******** ***** ** ***:

(*) ********** ** *** **** ***** *** ******* **** **** one *********.

** * ******, **** '********' *** ******* ******** ** ******** latching *** ** *****, ********* *** **** ***** **** ******** four ********** (***** ********** *********) *** ******* ** ******** ** the **** ***** **** ******:

High ******** **** ******

*****-***** ******** **** ******* ** ******** *** ******. ***** *** an ****** ****, ******** ******** *** ***** ****** ***** ********* *** ******* ** ** **** ******** ******. **** ** traditional ********** *** ********** **********, ***** ***** *** *****:

  • ******** ******:* **** ******** **** *** **** ********* ** *** **** or ******* ****. *** **** ** ******* ******** ******* **** ****** door *** ******** * ******** ** ********* ***** **** *******. Beefing ** **** **** ** **** ******, ** ******** *** risk ** '*************'.
  • ********* *****:** *** **** *** **** ********* *** ******** ** ******** inventory, *** *** ***** ** *** ********* ** * ********* are * ****.
  • *********/******** ***********: ******** ********* ** ***** ***** ** ***** **** *** stored, ********** ******** ** * ****** *****, **** ** *** area ** **** ****** * ********* ******** ********** ** ***** access ********** *****.

Commercially ********* *******

***** *** * ****** ** '*** *** *****' ********** *****-***** latching **** *********.  ************ **** *** ** ********* ** **** **** **** *****, with ****** **** *****, *** ** ************ **********; ******** ********* assembly *** ******** ************ ****** *** ******. **** ** *** more ******* ***** *******:

**********: **** ***************** ******** ******* *********** *********** ** ********** ******** but ****-********* **** ********/**** *******. **** **** **** **** **** $2000, *** ****** ****** *** ** ******** ** *** ******* devices.

*******: ********** *** ** ****** ** **** **** **** *******.  Take *********** ******* *******, **** ** * ******* **** **** ******* ******* vertical ****. **** ****** *** ** *********** ** ***** ** wood *****, *** ***** ***** $****.

*****: * '******' **** ******, *****'* **** ***** $*** - $1200 *** ********* **** ***** *****.  **** ** **** ************ ****************** ******, ********* ***** ********** *** ***************.

 

*******, ********** **** ***** ** ***** ***** ****** ** ********, and *****-**** **** *** ** ***** ** ******.  *** *******, the *** **** ***** ***** * *** * ***** ******** systems, *** *** ***** ********** *** *** ******** ** **** non-mechanical *****-**** **** *** ***** ** *** * ***** ***. There ** ** ***** ** *********** ** *** ****** ** points ****, ** **** ** ********** **** ****** ***** *** still *********.

** * ******* ****, *** ******** **** *** ***** **** be ******** *** ****** ****** ** ******* ******** *******. *********, steel ***** *** ****** **** * ***** ********* ** ** or **** (*******) *** *****, *** ******** **** *** ******* specific **** *****. 

Access ******* ***********

********* *********** ********** ****** ******* **** ********** ******** ***** *** basic *****:

********** ***** **********:**** ********** ****** **** ******* * ******** ******* ************** ******** *** ******** ******. *******, ***** **** * generally *********, ******* $**** ** **** *** ********* *-************ ******* *** ****** ********. ***** **** **** ********* ******* aggressive ********** *** *********** ** **** *** *** ****** *** door ** *** ****** *** ****** ***.

******** ******** ** *******: * **** *************** *** **** ******* ****** ** ******* mechanical ******* **** ******** ******** *******, ** ***** **** **** one******* ** ****** * ****. *******, **** ******** ** **** ********* to *******, ******* *********** ****** **** ** **** ******** ******* for *********** *****, *** **** ****, ****** **** *** ************ release *** ** **** *********.

Comments (6)

**** ** *** *** ****** *** **** **** ******** *****. They ***** ** *** **** ******* *** **** *********.

*** **** *** ** *** **** ******** ***** ***** ********** to *** **** ******** ***** ***** *** *********, * ***** it *** ** ***** ***** **** ** **** *** *****. Of ****** *** ** **** ** **** ** *** ***** and ******** ** **** *****, * **** **** ****** ***** and ***** ****** *** *** **** *** ** *** ******* by *** ********* ** ***** * ******.

** ********* **** *** '******** ******* *****', ******** ** ****** a ****. **** *** ***** ***** *****, ******** ** **** slightly **** **** ** ** **** ****** ****. ** *** US, ** *** '******* *****' **** *** ***** **** ******* chunks ** *****, *** '********' ** *** * **** ****.

*******, ****** *** ****** *** ** ********** **** ******* ** *** *** ***** **. :(

(****** * ***** **** ******** ************ **** ** ****.)

*** ***** **** * ***** * ****** ** ***** *** when ** ***** ** *********** ** * ******, *** *********, way ** ********** *** ******** ******* * ******* **** **. By ****** ********* *** ****** **** **** *** ***** **** something **** * *-* **** **** ***** **** **** ****** into *** **** **** ** **** * ****** ** ***** (2x4s' ******) ***** ** ************ ****** ** **** ** *** door. ** ******, ****** *** *** **** **** ** *** above ***** **** ******'* **** **** *** *** *** "****** of *** *****" **** ** ** **** **** *** * bit **** ********.

**** **** ** **** ** *** *********** *****?

*** **** ******* ***** **** *** ********:******** *****, *** **** *** ** ****** ****** *** * ****-******* unit. $*** ** **** ******.

*******, *** ******* ******* *** *** ** *** ****, *****-**** are *** **** ** ****. ** ***** ******* **** ********* has * ******** ******* **** ** ***** **** ****** ** $45 ****. * ***** ****** *** **** **** *** ****** from *** ********.

*'** *** **** **** ****** **** ****** ******* *** ****** multiple ******* *** ****, *** * **** ******** **** *** AXIS *****, *** ***** *, **** ****** ** **** *** ability ** **** * *** ******, ************* ************, *** * "double ******" ****. *'** **** **** ******** ********, *.*. *****, which ***** *** ******* ******** ** * ****** ****, ***** is **** ********-**********.

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