Geekzone: technology news, blogs, forums
Guest
Welcome Guest.
You haven't logged in yet. If you don't have an account you can register now.


cldlr76

289 posts

Ultimate Geek


#84718 6-Jun-2011 19:27
Send private message

Hi,


Does anyone know the maximum diameter a hole can be in a floor joist (to be used for cat5 & RG6).



Cheers
Chris    

Create new topic
cyril7
9058 posts

Uber Geek

ID Verified
Trusted
Subscriber

  #478293 6-Jun-2011 19:28
Send private message

Hi, building industry start getting bitter and twisted if you go over 32mm, normally 25mm is fine, otherwise put a couple of 25mm in with a gap between.

How many cables are you trying to put through.

Cyril



cldlr76

289 posts

Ultimate Geek


  #478301 6-Jun-2011 19:43
Send private message

The maximum will 3 rg6  and 3 maybe 4 cat5, and then further along the joist will be another 2 cat5






  

cyril7
9058 posts

Uber Geek

ID Verified
Trusted
Subscriber

  #478307 6-Jun-2011 19:54
Send private message

Hi, oh, so just a couple of cables, a 25mm hole will start being stressed when your stuffing 10 or so cat6 cables not 6 or 7, cat5e cables are slightly smaller. RG6 and Cat6 are similar dia.


Cyril



apm45
63 posts

Master Geek


  #478310 6-Jun-2011 20:06
Send private message

Cyril's advice sounds good to me as a structural engineer. Of course it all depends on the depth of the joist.
Generally penetrations should be less than 1/4 of the depth of the beam. It must also be located at mid-height of the joist.

cldlr76

289 posts

Ultimate Geek


  #478327 6-Jun-2011 20:32
Send private message

Thanks guys,  the joists at normal 6" joists so 25mm is well under the 1/4 of the depth.  I'll test on a scrap piece of wood to work out how small I can go to fit all the required cables through. 

cyril7
9058 posts

Uber Geek

ID Verified
Trusted
Subscriber

  #478345 6-Jun-2011 21:04
Send private message

Just use a 25mm which is pretty much all a sparkie will use for all holes regardless of what he is putting through..

Cyril

Create new topic





News and reviews »

Air New Zealand Starts AI adoption with OpenAI
Posted 24-Jul-2025 16:00


eero Pro 7 Review
Posted 23-Jul-2025 12:07


BeeStation Plus Review
Posted 21-Jul-2025 14:21


eero Unveils New Wi-Fi 7 Products in New Zealand
Posted 21-Jul-2025 00:01


WiZ Introduces HDMI Sync Box and other Light Devices
Posted 20-Jul-2025 17:32


RedShield Enhances DDoS and Bot Attack Protection
Posted 20-Jul-2025 17:26


Seagate Ships 30TB Drives
Posted 17-Jul-2025 11:24


Oclean AirPump A10 Water Flosser Review
Posted 13-Jul-2025 11:05


Samsung Galaxy Z Fold7: Raising the Bar for Smartphones
Posted 10-Jul-2025 02:01


Samsung Galaxy Z Flip7 Brings New Edge-To-Edge FlexWindow
Posted 10-Jul-2025 02:01


Epson Launches New AM-C550Z WorkForce Enterprise printer
Posted 9-Jul-2025 18:22


Samsung Releases Smart Monitor M9
Posted 9-Jul-2025 17:46


Nearly Half of Older Kiwis Still Write their Passwords on Paper
Posted 9-Jul-2025 08:42


D-Link 4G+ Cat6 Wi-Fi 6 DWR-933M Mobile Hotspot Review
Posted 1-Jul-2025 11:34


Oppo A5 Series Launches With New Levels of Durability
Posted 30-Jun-2025 10:15









Geekzone Live »

Try automatic live updates from Geekzone directly in your browser, without refreshing the page, with Geekzone Live now.



Are you subscribed to our RSS feed? You can download the latest headlines and summaries from our stories directly to your computer or smartphone by using a feed reader.