Door Hinges Guide

By Brian Rhodes, Published Oct 10, 2018, 09:06am EDT

Some of the trickiest access control problems are caused by bad door hinges.

door hinges guide

From doors not closing right, to locks not locking, worn or warped hinges are one of the most common root causes but typically ignored. Along with proper Door and Frame Alignment, hinges often ensure that access locks properly function to keep doors locked and safely unlock when needed.

In this guide, we examine:

  • The 5 Access Problems Caused By Bad Hinges
  • Common Commercial Hinge Types
  • Butt Hinges Often Have A Big Security Weakness
  • How To Mitigate Removing Hinge Pin Vulnerabilities
  • Geared Hinges Are Strongest but Most Costly
  • Why Power Pass-Thru Hinges Are Popular For Access

5 Access Problems Caused By Bad Hinges

Door hinges are devices that control how a door swings and moves and especially how closing happens.  Hinges bear the weight of the door in the frame, and while routine maintenance is often applied to locks and keys, hinge maintenance is frequently ignored.

Over the span of multiple years, door hinges often wear, break down, and even bend out of shape causing a number of issues that make electronic access control tough. The image below shows five common ones:

  • **** ***** *********: **** **** ******* are *** ************* ** the ******, **** ***** cannot ****** ***** *** may **** *** ***** or ** ******* ** typical ***.
  • ******* *******: **** * ***** presses ******* *** ****** or **** ** ** electric ******, ** ***** cannot ******* ****** ** a ********* ****** '**********', potentially **** ******** * life/safety *******.
  • **** ******* *****: **** ** ******* by ****, ******* ******** can ** ************* ******** through ************ ** *** armature ** *** **** and ****** ** *** frame.
  • ****** *****: *********, ** *** part ** *** **** 'sticks' ** *** ***** during ******* *** *******, the ****** ** *** 'shaving' ** ******** *** interfering **** ** *** door. ** ** ***** by ********* ** ******** the ***** ******** ** the ********.
  • ****** ********: ** ****, *** not *** ****** *** worn, **** *** **** **** ****** *** ***** **** that **** ** *** door ****** *** ** sync **** *** **** of **, *********** ******* operation ** ****** ****** with ********* *****.

**** ****** *** ********* and ********* ********, *** issues ***** *** ********* remedied, *.*.:

* **** ***** ** good ********* ** * uniform *** ******* *** edge ** *** **** and ***** ** *** sides.  **** ***, ******* between */*" - */*" (0.635 ** - *.**** cm) ******* ** *** door ******** *** **** size/weight, *** *** *** should ******* *** **** near *** ***** ** it **** **** *** top ****.

**** **** *** ******, it ***** ********* *** screws ******* *** ****** at *** **** ***** need ** ** ********, and *** **** ****** that ******** ******* **** shimming, ** **** ***** replacement *** ******.

** ******* **** ****** in *** **** *** ***** ********* Primer.

Hinge ************** ********* ******* ***

** **** *****, ********** doors **** **** ***** to **** ****** *** are ************ ********** **** certain ***** *********** ** mind. **** ***** *** three ******, *** ***** or **** ***** ***** use **** ****.

*** **** ******** ***** specifies ***** **** *** how **** **** ** hinges *** **** **** the ******** ** ********* built. *******, ** *********** demands ** *** ******** change **** **** *** as **** **** ** used ** * ********* rate, **** **** ****** may **** *** ** become *********** ******** ** other ********* ****.

*** **** ******, ********** and ***** ********* ****** control ****** **** ** familiar **** ******** *** adjusting ****** ** **** of ***** *****. ******* hinge ************** *** ********* factory *****, ********* **** is ******* **********. *******, understanding *** ***** ***** and ******* ** ******* when ******** ************ ** optimizing **** *** ****** use.

Common ***** *****

** ********** ***, ****** are ******** ** **** both *** ****** *** swing ****** ** ****, often ******** ** ******.

  • **** ******: *** **** ****** type ** ***** ** the **** ********* *********** of *** ****, **** replacement, *** ******* *** for **** ********.
  • **********/******: *******, *** ***** with **** ****** *** damaging ***, ****-****** *** highly ******* ****** ****** are ****, *** ** a **** ****** ******** cost **** ****-***** *****.
  • ****-****: **** ****** *** designed ** *** **** can ** *********** ******* to ****** ******* ***** by ***** '****-***' ****** held ******** ** ***** by ******* *** **** weight.  ******* **** ** 'lift-off', **** *** *** good *** ******** ******** and ***** **** ** replaced ** **** ** security ********* *****.
  • ******: *** ***** ** storefront ********, ************ ****** are ********* ******** ** specialty '******' ******** ************ for *** ******** *** are *** *************** ** service ** ***********.

Butt ****** **** ******

*** **** ******* **** of ****** **** *** 'butt ******', ******** ** fit **** ****** ******* in ***** *** ****** and **** * ******* of ****** ** *** degrees ** ****. ****** commercial ***** *** ***** fitted **** ****** **** bearings *** ******** ***** a ******* ** **** or **** ***** ** frames *** ******:

*** ********** ***, * single *** ** **** hinges **** ~$** - $20 *** ***, ** the ***** ** ****** a ****** **** **** multiple **** ********* ****** ~$40 - $** ** hinges *** ****, ******** specialty **** ****** *** run ** ** ******* hundred ******* *** ****.

** **** *****, *** pivot **** ** ******* inside, ** ** *** protected **** ** ******** tampering ****. ********* ** **** *****, ****** *** ***** inside *** *** ** possible ** ***** ********** must ** ****, *********:

'******** ****' ****** *** often **** ***** *** swing ** *** **** or ******** ** *** pivot **** ** ******** the ******** ****, ***** across *** ********* ** the **** ******. ***, the ***** ** ******** to **** *** ****** evenly ******* ***** ************ in *** *****.

Security ********

******* ********* ******* *** hinges, ********** ***** **** exposed ******, ** *** easily *** ***** **** can ** *******. ******** the **** **** ****** for *** ***** ** be ********* **** ******, potentially ******** *** **** to ** ******* *** for ****** ** ** gained ** ************ ******.

******* ***** ** ****** are ********** ********** ** this **** ** ******, especially ********** ****** **** over-sized *** ********** **** on ***** ****, **** this *******:

***** ****** ****-***** **** channel ***** ** ****** allow ******* ** **** hinge *** **** *** and ***** *** **** removal ** *** **** hinge ***. ** **** cases *** *** *** be ***** *** ** tapping ** **** ** using ****** ********* **** nails ** ******* ** knock **** ****:

**** ***** ** ********** hinges ******* ****** **** specifically ******** ** ******* the ***** ****** *** pin *** ** *******, or ** *** *** a **** ***** ***** pin ** ***.  *******, ****** hinges *** ******** *** risk **** ********** '******** pins' **** **** *** door ****** ** ****** position **** **** *** hinge **** *** *******:

Geared ****** ****, **** ******

*** ******** **** ********* heavy *** ***** *** doors *** ****** ** closed ********** **** ***** per ****, ******* **** by *****, ** **** forcefully ******* ** *****, normal **** ** ****** hinges *** **** *** in **** * *** months.

*** ***** ********, '********** Hinges' **** ****** '*****' or '******' ****** *** a **** ********. **** type ** ***** ** the **** ******* *** most ********* ** ******, and ********* **** *** entire ****** ** *** door ** ***** ** is ********.

******* ***** ****** *** the **** ********** ***********, and ******* **** ******* the **** ***** ** install, **** *** ***** the **** *********, ******* ~$500 - $*** *** door. *** ***** ***** shows *** **** ********* look **** *********, ******** the ****** ****** ** the ****** ****:

** *******, ****** ****** eliminate ****** ********* ****** by ****** *** ****** hinge **** ** *** door **** ** *** hinge *******, ** ******* or ******* ******* ***** often **** *** **** repeatable *** ********** *********.

Special ********

****** *** *** **** just **********. **** ******, like '***** **** ****' hinges ******** ***** ***** for ******** ** **** devices ******* *** ****** pivot ** *** ****, greatly *********** *** ********** the ***-******* ********** **** to ***** ****** *****.

***** ****** ***** **** 'normal' **** *** ********* of ***** ******* **** the ******** ******:

***** '****-****' ****** *** often ****** *** ****** power ******** ******, **** often *********** *** ***** can ****** ***** **** time/ ****** ** ***, and *** ******* *********** at * **** ******** pace **** ***-******* *****.

Comments (3)

Thanks Brian, informative as always!

For sagging doors, I've used tools like this many times to quickly get a door back in working order.

That's interesting.  I have not heard of the 'Hinge Doctor' until now, which essentially is a fitted bushing that helps you bend a warped hinge back into proper shape:

One important factor to consider when using wired hinges is the amount of current that will be going through the hinge. I have had to replace hinges where the wires essentially melted or fused together. Now a properly fused power supply would have prevented the wires from fusion together but not necessarily the plastic melting. 

POE hinges are also available for POE locks as well. Of course they run upwards of $500 or more MSRP for good quality hinges. 

From my experience don’t skimp on the quality of an electric hinge as you will spend much more on the labor of replacing than the initial cost. 

Also is you are selling and installing locks that will require a electric hinge make sure it is a commercial door hinge as they don’t make these for residential doors. Of course you have to make sure you get the correct size, shape and amount of knuckles as well. 

Just my 2cent input. 

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