LAN and Telecom Cabling Fishing one network cable in wall?

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Subject Author Date
Fishing one network cable in wall? DaveC 11-04-04
Posted by DaveC on November 4, 2004, 6:01 pm
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A friend in a medical office wants a network connection added. Bringing a
cable from the hub to the ceiling above the desk is a piece of cake. Getting
it inside the wall is ... well, I've never done this before.

The ceiling is suspended type with removable tiles. The wall is sheet rock
over metal studs. What is the easiest (only?) way to get a single Cat-5 cable
to its destination in this wall, a few feet off the floor?

Do these types of walls have fire blocking? Or other obstacles that would
require busting through the sheet rock to run the cable?

Thanks,
--
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ask a question here if I hadn't done that already.

DaveC
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Posted by on November 4, 2004, 10:13 pm
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>A friend in a medical office wants a network connection added. Bringing a
>cable from the hub to the ceiling above the desk is a piece of cake. Getting
>it inside the wall is ... well, I've never done this before.
>
>The ceiling is suspended type with removable tiles. The wall is sheet rock
>over metal studs. What is the easiest (only?) way to get a single Cat-5 cable
>to its destination in this wall, a few feet off the floor?

In general, you should be able to drop a wire in from the top of the
wall (may have to cut a hole in the sheetrock above the suspended
ceiling), and cut out a box further down the wall. Usually, it's
drywall and stud construction, though the studs may be metal.
Electricians do this all the time, it's not rocket science, though
experience counts for a lot.



Posted by James Knott on November 4, 2004, 11:45 pm
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DaveC wrote:

> A friend in a medical office wants a network connection added. Bringing a
> cable from the hub to the ceiling above the desk is a piece of cake.
> Getting it inside the wall is ... well, I've never done this before.
>
> The ceiling is suspended type with removable tiles. The wall is sheet rock
> over metal studs. What is the easiest (only?) way to get a single Cat-5
> cable to its destination in this wall, a few feet off the floor?
>
> Do these types of walls have fire blocking? Or other obstacles that would
> require busting through the sheet rock to run the cable?

If it's standard office type construction, it's just drywall over studs.
Depending on the metal studs used, there may already be holes in it, for
feeding cables through. If not, it's not difficult to punch a hole
through. Then cut a hole in the drywall, below the hole in the top plate
and use a fish, to pull the cable through. If the desk is away from the
wall, you may want to consider a pole for bringing the cable down. There
are many types available. Another method of coming down the wall, is
conduit, that sticks to the wall, over the cable.

Lots of options, depending on the situation.

--

(This space intentionally left blank)


Posted by Michael Quinlan on November 5, 2004, 4:25 pm
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> If it's standard office type construction, it's just drywall over studs.
> Depending on the metal studs used, there may already be holes in it, for
> feeding cables through. If not, it's not difficult to punch a hole
> through. Then cut a hole in the drywall, below the hole in the top plate
> and use a fish, to pull the cable through. If the desk is away from the
> wall, you may want to consider a pole for bringing the cable down. There
> are many types available. Another method of coming down the wall, is
> conduit, that sticks to the wall, over the cable.
>
> Lots of options, depending on the situation.


Carl's suggestion from way back, of using #12 jack chain attached to
the end of the cable works well in a "typical" situation with no
insulation. Standard 4-pair CAT5e cable fits through the links on the
chain, so you don't need anything else to attach the cable to the
chain. If there is insulation, I use a 8-10' section of 3/4" tape
measure. Get it between the drywall and the insulation and push it
down... it will continue to hug the wall. Use the markings on the
tape to know when you've gone far enough. You may need to hunt for
the tape at the bottom a bit, but it works well.


Posted by DaveC on November 7, 2004, 2:16 am
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All good suggestions.

But I still need to know if fire blocking will be an issue in most offices. I
know in homes, blocking between studs is common. If it is also in an office,
it'd be a real pain to get a cable around it, I'd think.

What's your experience?
--
Please, no "Go Google this" replies. I wouldn't
ask a question here if I hadn't done that already.

DaveC
me@privacy.net
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